| File: | home/fedora/workspace/kea-dev/clang-static-analyzer/src/lib/dhcp/option_space.cc |
| Warning: | line 45, column 1 Potential memory leak |
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| 1 | // Copyright (C) 2012-2015 Internet Systems Consortium, Inc. ("ISC") | |||
| 2 | // | |||
| 3 | // This Source Code Form is subject to the terms of the Mozilla Public | |||
| 4 | // License, v. 2.0. If a copy of the MPL was not distributed with this | |||
| 5 | // file, You can obtain one at http://mozilla.org/MPL/2.0/. | |||
| 6 | ||||
| 7 | #include <config.h> | |||
| 8 | ||||
| 9 | #include <dhcp/option_space.h> | |||
| 10 | #include <boost/algorithm/string/classification.hpp> | |||
| 11 | #include <boost/algorithm/string/predicate.hpp> | |||
| 12 | ||||
| 13 | namespace isc { | |||
| 14 | namespace dhcp { | |||
| 15 | ||||
| 16 | OptionSpace::OptionSpace(const std::string& name, const bool vendor_space) | |||
| 17 | : name_(name), vendor_space_(vendor_space) { | |||
| 18 | // Check that provided option space name is valid. | |||
| 19 | if (!validateName(name_)) { | |||
| 20 | isc_throw(InvalidOptionSpace, "Invalid option space name "do { std::ostringstream oss__; oss__ << "Invalid option space name " << name_; throw InvalidOptionSpace("option_space.cc", 21 , oss__.str().c_str()); } while (1) | |||
| 21 | << name_)do { std::ostringstream oss__; oss__ << "Invalid option space name " << name_; throw InvalidOptionSpace("option_space.cc", 21 , oss__.str().c_str()); } while (1); | |||
| 22 | } | |||
| 23 | } | |||
| 24 | ||||
| 25 | bool | |||
| 26 | OptionSpace::validateName(const std::string& name) { | |||
| 27 | ||||
| 28 | using namespace boost::algorithm; | |||
| 29 | ||||
| 30 | // Allowed characters are: lower or upper case letters, digits, | |||
| 31 | // underscores and hyphens. Empty option spaces are not allowed. | |||
| 32 | if (all(name, boost::is_from_range('a', 'z') || | |||
| 33 | boost::is_from_range('A', 'Z') || | |||
| 34 | boost::is_digit() || | |||
| 35 | boost::is_any_of(std::string("-_"))) && | |||
| 36 | !name.empty() && | |||
| 37 | // Hyphens and underscores are not allowed at the beginning | |||
| 38 | // and at the end of the option space name. | |||
| 39 | !all(find_head(name, 1), boost::is_any_of(std::string("-_"))) && | |||
| 40 | !all(find_tail(name, 1), boost::is_any_of(std::string("-_")))) { | |||
| 41 | return (true); | |||
| 42 | ||||
| 43 | } | |||
| 44 | return (false); | |||
| 45 | } | |||
| ||||
| 46 | ||||
| 47 | OptionSpace6::OptionSpace6(const std::string& name) | |||
| 48 | : OptionSpace(name), | |||
| 49 | enterprise_number_(0) { | |||
| 50 | } | |||
| 51 | ||||
| 52 | OptionSpace6::OptionSpace6(const std::string& name, | |||
| 53 | const uint32_t enterprise_number) | |||
| 54 | : OptionSpace(name, true), | |||
| ||||
| 55 | enterprise_number_(enterprise_number) { | |||
| 56 | } | |||
| 57 | ||||
| 58 | void | |||
| 59 | OptionSpace6::setVendorSpace(const uint32_t enterprise_number) { | |||
| 60 | enterprise_number_ = enterprise_number; | |||
| 61 | OptionSpace::setVendorSpace(); | |||
| 62 | } | |||
| 63 | ||||
| 64 | } // end of isc::dhcp namespace | |||
| 65 | } // end of isc namespace |
| 1 | // Boost string_algo library classification.hpp header file ---------------------------// |
| 2 | |
| 3 | // Copyright Pavol Droba 2002-2003. |
| 4 | // |
| 5 | // Distributed under the Boost Software License, Version 1.0. |
| 6 | // (See accompanying file LICENSE_1_0.txt or copy at |
| 7 | // http://www.boost.org/LICENSE_1_0.txt) |
| 8 | |
| 9 | // See http://www.boost.org/ for updates, documentation, and revision history. |
| 10 | |
| 11 | #ifndef BOOST_STRING_CLASSIFICATION_HPP |
| 12 | #define BOOST_STRING_CLASSIFICATION_HPP |
| 13 | |
| 14 | #include <algorithm> |
| 15 | #include <locale> |
| 16 | #include <boost/range/value_type.hpp> |
| 17 | #include <boost/range/as_literal.hpp> |
| 18 | #include <boost/algorithm/string/detail/classification.hpp> |
| 19 | #include <boost/algorithm/string/predicate_facade.hpp> |
| 20 | |
| 21 | |
| 22 | /*! \file |
| 23 | Classification predicates are included in the library to give |
| 24 | some more convenience when using algorithms like \c trim() and \c all(). |
| 25 | They wrap functionality of STL classification functions ( e.g. \c std::isspace() ) |
| 26 | into generic functors. |
| 27 | */ |
| 28 | |
| 29 | namespace boost { |
| 30 | namespace algorithm { |
| 31 | |
| 32 | // classification functor generator -------------------------------------// |
| 33 | |
| 34 | //! is_classified predicate |
| 35 | /*! |
| 36 | Construct the \c is_classified predicate. This predicate holds if the input is |
| 37 | of specified \c std::ctype category. |
| 38 | |
| 39 | \param Type A \c std::ctype category |
| 40 | \param Loc A locale used for classification |
| 41 | \return An instance of the \c is_classified predicate |
| 42 | */ |
| 43 | inline detail::is_classifiedF |
| 44 | is_classified(std::ctype_base::mask Type, const std::locale& Loc=std::locale()) |
| 45 | { |
| 46 | return detail::is_classifiedF(Type, Loc); |
| 47 | } |
| 48 | |
| 49 | //! is_space predicate |
| 50 | /*! |
| 51 | Construct the \c is_classified predicate for the \c ctype_base::space category. |
| 52 | |
| 53 | \param Loc A locale used for classification |
| 54 | \return An instance of the \c is_classified predicate |
| 55 | */ |
| 56 | inline detail::is_classifiedF |
| 57 | is_space(const std::locale& Loc=std::locale()) |
| 58 | { |
| 59 | return detail::is_classifiedF(std::ctype_base::space, Loc); |
| 60 | } |
| 61 | |
| 62 | //! is_alnum predicate |
| 63 | /*! |
| 64 | Construct the \c is_classified predicate for the \c ctype_base::alnum category. |
| 65 | |
| 66 | \param Loc A locale used for classification |
| 67 | \return An instance of the \c is_classified predicate |
| 68 | */ |
| 69 | inline detail::is_classifiedF |
| 70 | is_alnum(const std::locale& Loc=std::locale()) |
| 71 | { |
| 72 | return detail::is_classifiedF(std::ctype_base::alnum, Loc); |
| 73 | } |
| 74 | |
| 75 | //! is_alpha predicate |
| 76 | /*! |
| 77 | Construct the \c is_classified predicate for the \c ctype_base::alpha category. |
| 78 | |
| 79 | \param Loc A locale used for classification |
| 80 | \return An instance of the \c is_classified predicate |
| 81 | */ |
| 82 | inline detail::is_classifiedF |
| 83 | is_alpha(const std::locale& Loc=std::locale()) |
| 84 | { |
| 85 | return detail::is_classifiedF(std::ctype_base::alpha, Loc); |
| 86 | } |
| 87 | |
| 88 | //! is_cntrl predicate |
| 89 | /*! |
| 90 | Construct the \c is_classified predicate for the \c ctype_base::cntrl category. |
| 91 | |
| 92 | \param Loc A locale used for classification |
| 93 | \return An instance of the \c is_classified predicate |
| 94 | */ |
| 95 | inline detail::is_classifiedF |
| 96 | is_cntrl(const std::locale& Loc=std::locale()) |
| 97 | { |
| 98 | return detail::is_classifiedF(std::ctype_base::cntrl, Loc); |
| 99 | } |
| 100 | |
| 101 | //! is_digit predicate |
| 102 | /*! |
| 103 | Construct the \c is_classified predicate for the \c ctype_base::digit category. |
| 104 | |
| 105 | \param Loc A locale used for classification |
| 106 | \return An instance of the \c is_classified predicate |
| 107 | */ |
| 108 | inline detail::is_classifiedF |
| 109 | is_digit(const std::locale& Loc=std::locale()) |
| 110 | { |
| 111 | return detail::is_classifiedF(std::ctype_base::digit, Loc); |
| 112 | } |
| 113 | |
| 114 | //! is_graph predicate |
| 115 | /*! |
| 116 | Construct the \c is_classified predicate for the \c ctype_base::graph category. |
| 117 | |
| 118 | \param Loc A locale used for classification |
| 119 | \return An instance of the \c is_classified predicate |
| 120 | */ |
| 121 | inline detail::is_classifiedF |
| 122 | is_graph(const std::locale& Loc=std::locale()) |
| 123 | { |
| 124 | return detail::is_classifiedF(std::ctype_base::graph, Loc); |
| 125 | } |
| 126 | |
| 127 | //! is_lower predicate |
| 128 | /*! |
| 129 | Construct the \c is_classified predicate for the \c ctype_base::lower category. |
| 130 | |
| 131 | \param Loc A locale used for classification |
| 132 | \return An instance of \c is_classified predicate |
| 133 | */ |
| 134 | inline detail::is_classifiedF |
| 135 | is_lower(const std::locale& Loc=std::locale()) |
| 136 | { |
| 137 | return detail::is_classifiedF(std::ctype_base::lower, Loc); |
| 138 | } |
| 139 | |
| 140 | //! is_print predicate |
| 141 | /*! |
| 142 | Construct the \c is_classified predicate for the \c ctype_base::print category. |
| 143 | |
| 144 | \param Loc A locale used for classification |
| 145 | \return An instance of the \c is_classified predicate |
| 146 | */ |
| 147 | inline detail::is_classifiedF |
| 148 | is_print(const std::locale& Loc=std::locale()) |
| 149 | { |
| 150 | return detail::is_classifiedF(std::ctype_base::print, Loc); |
| 151 | } |
| 152 | |
| 153 | //! is_punct predicate |
| 154 | /*! |
| 155 | Construct the \c is_classified predicate for the \c ctype_base::punct category. |
| 156 | |
| 157 | \param Loc A locale used for classification |
| 158 | \return An instance of the \c is_classified predicate |
| 159 | */ |
| 160 | inline detail::is_classifiedF |
| 161 | is_punct(const std::locale& Loc=std::locale()) |
| 162 | { |
| 163 | return detail::is_classifiedF(std::ctype_base::punct, Loc); |
| 164 | } |
| 165 | |
| 166 | //! is_upper predicate |
| 167 | /*! |
| 168 | Construct the \c is_classified predicate for the \c ctype_base::upper category. |
| 169 | |
| 170 | \param Loc A locale used for classification |
| 171 | \return An instance of the \c is_classified predicate |
| 172 | */ |
| 173 | inline detail::is_classifiedF |
| 174 | is_upper(const std::locale& Loc=std::locale()) |
| 175 | { |
| 176 | return detail::is_classifiedF(std::ctype_base::upper, Loc); |
| 177 | } |
| 178 | |
| 179 | //! is_xdigit predicate |
| 180 | /*! |
| 181 | Construct the \c is_classified predicate for the \c ctype_base::xdigit category. |
| 182 | |
| 183 | \param Loc A locale used for classification |
| 184 | \return An instance of the \c is_classified predicate |
| 185 | */ |
| 186 | inline detail::is_classifiedF |
| 187 | is_xdigit(const std::locale& Loc=std::locale()) |
| 188 | { |
| 189 | return detail::is_classifiedF(std::ctype_base::xdigit, Loc); |
| 190 | } |
| 191 | |
| 192 | //! is_any_of predicate |
| 193 | /*! |
| 194 | Construct the \c is_any_of predicate. The predicate holds if the input |
| 195 | is included in the specified set of characters. |
| 196 | |
| 197 | \param Set A set of characters to be recognized |
| 198 | \return An instance of the \c is_any_of predicate |
| 199 | */ |
| 200 | template<typename RangeT> |
| 201 | inline detail::is_any_ofF< |
| 202 | BOOST_STRING_TYPENAMEtypename range_value<RangeT>::type> |
| 203 | is_any_of( const RangeT& Set ) |
| 204 | { |
| 205 | iterator_range<BOOST_STRING_TYPENAMEtypename range_const_iterator<RangeT>::type> lit_set(boost::as_literal(Set)); |
| 206 | return detail::is_any_ofF<BOOST_STRING_TYPENAMEtypename range_value<RangeT>::type>(lit_set); |
| 207 | } |
| 208 | |
| 209 | //! is_from_range predicate |
| 210 | /*! |
| 211 | Construct the \c is_from_range predicate. The predicate holds if the input |
| 212 | is included in the specified range. (i.e. From <= Ch <= To ) |
| 213 | |
| 214 | \param From The start of the range |
| 215 | \param To The end of the range |
| 216 | \return An instance of the \c is_from_range predicate |
| 217 | */ |
| 218 | template<typename CharT> |
| 219 | inline detail::is_from_rangeF<CharT> is_from_range(CharT From, CharT To) |
| 220 | { |
| 221 | return detail::is_from_rangeF<CharT>(From,To); |
| 222 | } |
| 223 | |
| 224 | // predicate combinators ---------------------------------------------------// |
| 225 | |
| 226 | //! predicate 'and' composition predicate |
| 227 | /*! |
| 228 | Construct the \c class_and predicate. This predicate can be used |
| 229 | to logically combine two classification predicates. \c class_and holds, |
| 230 | if both predicates return true. |
| 231 | |
| 232 | \param Pred1 The first predicate |
| 233 | \param Pred2 The second predicate |
| 234 | \return An instance of the \c class_and predicate |
| 235 | */ |
| 236 | template<typename Pred1T, typename Pred2T> |
| 237 | inline detail::pred_andF<Pred1T, Pred2T> |
| 238 | operator&&( |
| 239 | const predicate_facade<Pred1T>& Pred1, |
| 240 | const predicate_facade<Pred2T>& Pred2 ) |
| 241 | { |
| 242 | // Doing the static_cast with the pointer instead of the reference |
| 243 | // is a workaround for some compilers which have problems with |
| 244 | // static_cast's of template references, i.e. CW8. /grafik/ |
| 245 | return detail::pred_andF<Pred1T,Pred2T>( |
| 246 | *static_cast<const Pred1T*>(&Pred1), |
| 247 | *static_cast<const Pred2T*>(&Pred2) ); |
| 248 | } |
| 249 | |
| 250 | //! predicate 'or' composition predicate |
| 251 | /*! |
| 252 | Construct the \c class_or predicate. This predicate can be used |
| 253 | to logically combine two classification predicates. \c class_or holds, |
| 254 | if one of the predicates return true. |
| 255 | |
| 256 | \param Pred1 The first predicate |
| 257 | \param Pred2 The second predicate |
| 258 | \return An instance of the \c class_or predicate |
| 259 | */ |
| 260 | template<typename Pred1T, typename Pred2T> |
| 261 | inline detail::pred_orF<Pred1T, Pred2T> |
| 262 | operator||( |
| 263 | const predicate_facade<Pred1T>& Pred1, |
| 264 | const predicate_facade<Pred2T>& Pred2 ) |
| 265 | { |
| 266 | // Doing the static_cast with the pointer instead of the reference |
| 267 | // is a workaround for some compilers which have problems with |
| 268 | // static_cast's of template references, i.e. CW8. /grafik/ |
| 269 | return detail::pred_orF<Pred1T,Pred2T>( |
| 270 | *static_cast<const Pred1T*>(&Pred1), |
| 271 | *static_cast<const Pred2T*>(&Pred2)); |
| 272 | } |
| 273 | |
| 274 | //! predicate negation operator |
| 275 | /*! |
| 276 | Construct the \c class_not predicate. This predicate represents a negation. |
| 277 | \c class_or holds if of the predicates return false. |
| 278 | |
| 279 | \param Pred The predicate to be negated |
| 280 | \return An instance of the \c class_not predicate |
| 281 | */ |
| 282 | template<typename PredT> |
| 283 | inline detail::pred_notF<PredT> |
| 284 | operator!( const predicate_facade<PredT>& Pred ) |
| 285 | { |
| 286 | // Doing the static_cast with the pointer instead of the reference |
| 287 | // is a workaround for some compilers which have problems with |
| 288 | // static_cast's of template references, i.e. CW8. /grafik/ |
| 289 | return detail::pred_notF<PredT>(*static_cast<const PredT*>(&Pred)); |
| 290 | } |
| 291 | |
| 292 | } // namespace algorithm |
| 293 | |
| 294 | // pull names to the boost namespace |
| 295 | using algorithm::is_classified; |
| 296 | using algorithm::is_space; |
| 297 | using algorithm::is_alnum; |
| 298 | using algorithm::is_alpha; |
| 299 | using algorithm::is_cntrl; |
| 300 | using algorithm::is_digit; |
| 301 | using algorithm::is_graph; |
| 302 | using algorithm::is_lower; |
| 303 | using algorithm::is_upper; |
| 304 | using algorithm::is_print; |
| 305 | using algorithm::is_punct; |
| 306 | using algorithm::is_xdigit; |
| 307 | using algorithm::is_any_of; |
| 308 | using algorithm::is_from_range; |
| 309 | |
| 310 | } // namespace boost |
| 311 | |
| 312 | #endif // BOOST_STRING_PREDICATE_HPP |
| 1 | // Boost string_algo library classification.hpp header file ---------------------------// |
| 2 | |
| 3 | // Copyright Pavol Droba 2002-2003. |
| 4 | // |
| 5 | // Distributed under the Boost Software License, Version 1.0. |
| 6 | // (See accompanying file LICENSE_1_0.txt or copy at |
| 7 | // http://www.boost.org/LICENSE_1_0.txt) |
| 8 | |
| 9 | // See http://www.boost.org/ for updates, documentation, and revision history. |
| 10 | |
| 11 | #ifndef BOOST_STRING_CLASSIFICATION_DETAIL_HPP |
| 12 | #define BOOST_STRING_CLASSIFICATION_DETAIL_HPP |
| 13 | |
| 14 | #include <boost/algorithm/string/config.hpp> |
| 15 | #include <algorithm> |
| 16 | #include <cstring> |
| 17 | #include <functional> |
| 18 | #include <locale> |
| 19 | |
| 20 | #include <boost/range/begin.hpp> |
| 21 | #include <boost/range/distance.hpp> |
| 22 | #include <boost/range/end.hpp> |
| 23 | |
| 24 | #include <boost/algorithm/string/predicate_facade.hpp> |
| 25 | #include <boost/type_traits/remove_const.hpp> |
| 26 | |
| 27 | namespace boost { |
| 28 | namespace algorithm { |
| 29 | namespace detail { |
| 30 | |
| 31 | // classification functors -----------------------------------------------// |
| 32 | |
| 33 | // is_classified functor |
| 34 | struct is_classifiedF : |
| 35 | public predicate_facade<is_classifiedF> |
| 36 | { |
| 37 | // Boost.ResultOf support |
| 38 | typedef bool result_type; |
| 39 | |
| 40 | // Constructor from a locale |
| 41 | is_classifiedF(std::ctype_base::mask Type, std::locale const & Loc = std::locale()) : |
| 42 | m_Type(Type), m_Locale(Loc) {} |
| 43 | // Operation |
| 44 | template<typename CharT> |
| 45 | bool operator()( CharT Ch ) const |
| 46 | { |
| 47 | return std::use_facet< std::ctype<CharT> >(m_Locale).is( m_Type, Ch ); |
| 48 | } |
| 49 | |
| 50 | #if defined(BOOST_BORLANDC) && (BOOST_BORLANDC >= 0x560) && (BOOST_BORLANDC <= 0x582) && !defined(_USE_OLD_RW_STL) |
| 51 | template<> |
| 52 | bool operator()( char const Ch ) const |
| 53 | { |
| 54 | return std::use_facet< std::ctype<char> >(m_Locale).is( m_Type, Ch ); |
| 55 | } |
| 56 | #endif |
| 57 | |
| 58 | private: |
| 59 | std::ctype_base::mask m_Type; |
| 60 | std::locale m_Locale; |
| 61 | }; |
| 62 | |
| 63 | |
| 64 | // is_any_of functor |
| 65 | /* |
| 66 | returns true if the value is from the specified set |
| 67 | */ |
| 68 | template<typename CharT> |
| 69 | struct is_any_ofF : |
| 70 | public predicate_facade<is_any_ofF<CharT> > |
| 71 | { |
| 72 | private: |
| 73 | // set cannot operate on const value-type |
| 74 | typedef typename ::boost::remove_const<CharT>::type set_value_type; |
| 75 | |
| 76 | public: |
| 77 | // Boost.ResultOf support |
| 78 | typedef bool result_type; |
| 79 | |
| 80 | // Constructor |
| 81 | template<typename RangeT> |
| 82 | is_any_ofF( const RangeT& Range ) : m_Size(0) |
| 83 | { |
| 84 | // Prepare storage |
| 85 | m_Storage.m_dynSet=0; |
| 86 | |
| 87 | std::size_t Size=::boost::distance(Range); |
| 88 | m_Size=Size; |
| 89 | set_value_type* Storage=0; |
| 90 | |
| 91 | if(use_fixed_storage(m_Size)) |
| 92 | { |
| 93 | // Use fixed storage |
| 94 | Storage=&m_Storage.m_fixSet[0]; |
| 95 | } |
| 96 | else |
| 97 | { |
| 98 | // Use dynamic storage |
| 99 | m_Storage.m_dynSet=new set_value_type[m_Size]; |
| 100 | Storage=m_Storage.m_dynSet; |
| 101 | } |
| 102 | |
| 103 | // Use fixed storage |
| 104 | ::std::copy(::boost::begin(Range), ::boost::end(Range), Storage); |
| 105 | ::std::sort(Storage, Storage+m_Size); |
| 106 | } |
| 107 | |
| 108 | // Copy constructor |
| 109 | is_any_ofF(const is_any_ofF& Other) : m_Size(Other.m_Size) |
| 110 | { |
| 111 | // Prepare storage |
| 112 | m_Storage.m_dynSet=0; |
| 113 | const set_value_type* SrcStorage=0; |
| 114 | set_value_type* DestStorage=0; |
| 115 | |
| 116 | if(use_fixed_storage(m_Size)) |
| 117 | { |
| 118 | // Use fixed storage |
| 119 | DestStorage=&m_Storage.m_fixSet[0]; |
| 120 | SrcStorage=&Other.m_Storage.m_fixSet[0]; |
| 121 | } |
| 122 | else |
| 123 | { |
| 124 | // Use dynamic storage |
| 125 | m_Storage.m_dynSet=new set_value_type[m_Size]; |
| 126 | DestStorage=m_Storage.m_dynSet; |
| 127 | SrcStorage=Other.m_Storage.m_dynSet; |
| 128 | } |
| 129 | |
| 130 | // Use fixed storage |
| 131 | ::std::memcpy(DestStorage, SrcStorage, sizeof(set_value_type)*m_Size); |
| 132 | } |
| 133 | |
| 134 | // Destructor |
| 135 | ~is_any_ofF() |
| 136 | { |
| 137 | if(!use_fixed_storage(m_Size) && m_Storage.m_dynSet!=0) |
| 138 | { |
| 139 | delete [] m_Storage.m_dynSet; |
| 140 | } |
| 141 | } |
| 142 | |
| 143 | // Assignment |
| 144 | is_any_ofF& operator=(const is_any_ofF& Other) |
| 145 | { |
| 146 | // Handle self assignment |
| 147 | if(this==&Other) return *this; |
| 148 | |
| 149 | // Prepare storage |
| 150 | const set_value_type* SrcStorage; |
| 151 | set_value_type* DestStorage; |
| 152 | |
| 153 | if(use_fixed_storage(Other.m_Size)) |
| 154 | { |
| 155 | // Use fixed storage |
| 156 | DestStorage=&m_Storage.m_fixSet[0]; |
| 157 | SrcStorage=&Other.m_Storage.m_fixSet[0]; |
| 158 | |
| 159 | // Delete old storage if was present |
| 160 | if(!use_fixed_storage(m_Size) && m_Storage.m_dynSet!=0) |
| 161 | { |
| 162 | delete [] m_Storage.m_dynSet; |
| 163 | } |
| 164 | |
| 165 | // Set new size |
| 166 | m_Size=Other.m_Size; |
| 167 | } |
| 168 | else |
| 169 | { |
| 170 | // Other uses dynamic storage |
| 171 | SrcStorage=Other.m_Storage.m_dynSet; |
| 172 | |
| 173 | // Check what kind of storage are we using right now |
| 174 | if(use_fixed_storage(m_Size)) |
| 175 | { |
| 176 | // Using fixed storage, allocate new |
| 177 | set_value_type* pTemp=new set_value_type[Other.m_Size]; |
| 178 | DestStorage=pTemp; |
| 179 | m_Storage.m_dynSet=pTemp; |
| 180 | m_Size=Other.m_Size; |
| 181 | } |
| 182 | else |
| 183 | { |
| 184 | // Using dynamic storage, check if can reuse |
| 185 | if(m_Storage.m_dynSet!=0 && m_Size>=Other.m_Size && m_Size<Other.m_Size*2) |
| 186 | { |
| 187 | // Reuse the current storage |
| 188 | DestStorage=m_Storage.m_dynSet; |
| 189 | m_Size=Other.m_Size; |
| 190 | } |
| 191 | else |
| 192 | { |
| 193 | // Allocate the new one |
| 194 | set_value_type* pTemp=new set_value_type[Other.m_Size]; |
| 195 | DestStorage=pTemp; |
| 196 | |
| 197 | // Delete old storage if necessary |
| 198 | if(m_Storage.m_dynSet!=0) |
| 199 | { |
| 200 | delete [] m_Storage.m_dynSet; |
| 201 | } |
| 202 | // Store the new storage |
| 203 | m_Storage.m_dynSet=pTemp; |
| 204 | // Set new size |
| 205 | m_Size=Other.m_Size; |
| 206 | } |
| 207 | } |
| 208 | } |
| 209 | |
| 210 | // Copy the data |
| 211 | ::std::memcpy(DestStorage, SrcStorage, sizeof(set_value_type)*m_Size); |
| 212 | |
| 213 | return *this; |
| 214 | } |
| 215 | |
| 216 | // Operation |
| 217 | template<typename Char2T> |
| 218 | bool operator()( Char2T Ch ) const |
| 219 | { |
| 220 | const set_value_type* Storage= |
| 221 | (use_fixed_storage(m_Size)) |
| 222 | ? &m_Storage.m_fixSet[0] |
| 223 | : m_Storage.m_dynSet; |
| 224 | |
| 225 | return ::std::binary_search(Storage, Storage+m_Size, Ch); |
| 226 | } |
| 227 | private: |
| 228 | // check if the size is eligible for fixed storage |
| 229 | static bool use_fixed_storage(std::size_t size) |
| 230 | { |
| 231 | return size<=sizeof(set_value_type*)*2; |
| 232 | } |
| 233 | |
| 234 | |
| 235 | private: |
| 236 | // storage |
| 237 | // The actual used storage is selected on the type |
| 238 | union |
| 239 | { |
| 240 | set_value_type* m_dynSet; |
| 241 | set_value_type m_fixSet[sizeof(set_value_type*)*2]; |
| 242 | } |
| 243 | m_Storage; |
| 244 | |
| 245 | // storage size |
| 246 | ::std::size_t m_Size; |
| 247 | }; |
| 248 | |
| 249 | // is_from_range functor |
| 250 | /* |
| 251 | returns true if the value is from the specified range. |
| 252 | (i.e. x>=From && x>=To) |
| 253 | */ |
| 254 | template<typename CharT> |
| 255 | struct is_from_rangeF : |
| 256 | public predicate_facade< is_from_rangeF<CharT> > |
| 257 | { |
| 258 | // Boost.ResultOf support |
| 259 | typedef bool result_type; |
| 260 | |
| 261 | // Constructor |
| 262 | is_from_rangeF( CharT From, CharT To ) : m_From(From), m_To(To) {} |
| 263 | |
| 264 | // Operation |
| 265 | template<typename Char2T> |
| 266 | bool operator()( Char2T Ch ) const |
| 267 | { |
| 268 | return ( m_From <= Ch ) && ( Ch <= m_To ); |
| 269 | } |
| 270 | |
| 271 | private: |
| 272 | CharT m_From; |
| 273 | CharT m_To; |
| 274 | }; |
| 275 | |
| 276 | // class_and composition predicate |
| 277 | template<typename Pred1T, typename Pred2T> |
| 278 | struct pred_andF : |
| 279 | public predicate_facade< pred_andF<Pred1T,Pred2T> > |
| 280 | { |
| 281 | public: |
| 282 | |
| 283 | // Boost.ResultOf support |
| 284 | typedef bool result_type; |
| 285 | |
| 286 | // Constructor |
| 287 | pred_andF( Pred1T Pred1, Pred2T Pred2 ) : |
| 288 | m_Pred1(Pred1), m_Pred2(Pred2) {} |
| 289 | |
| 290 | // Operation |
| 291 | template<typename CharT> |
| 292 | bool operator()( CharT Ch ) const |
| 293 | { |
| 294 | return m_Pred1(Ch) && m_Pred2(Ch); |
| 295 | } |
| 296 | |
| 297 | private: |
| 298 | Pred1T m_Pred1; |
| 299 | Pred2T m_Pred2; |
| 300 | }; |
| 301 | |
| 302 | // class_or composition predicate |
| 303 | template<typename Pred1T, typename Pred2T> |
| 304 | struct pred_orF : |
| 305 | public predicate_facade< pred_orF<Pred1T,Pred2T> > |
| 306 | { |
| 307 | public: |
| 308 | // Boost.ResultOf support |
| 309 | typedef bool result_type; |
| 310 | |
| 311 | // Constructor |
| 312 | pred_orF( Pred1T Pred1, Pred2T Pred2 ) : |
| 313 | m_Pred1(Pred1), m_Pred2(Pred2) {} |
| 314 | |
| 315 | // Operation |
| 316 | template<typename CharT> |
| 317 | bool operator()( CharT Ch ) const |
| 318 | { |
| 319 | return m_Pred1(Ch) || m_Pred2(Ch); |
| 320 | } |
| 321 | |
| 322 | private: |
| 323 | Pred1T m_Pred1; |
| 324 | Pred2T m_Pred2; |
| 325 | }; |
| 326 | |
| 327 | // class_not composition predicate |
| 328 | template< typename PredT > |
| 329 | struct pred_notF : |
| 330 | public predicate_facade< pred_notF<PredT> > |
| 331 | { |
| 332 | public: |
| 333 | // Boost.ResultOf support |
| 334 | typedef bool result_type; |
| 335 | |
| 336 | // Constructor |
| 337 | pred_notF( PredT Pred ) : m_Pred(Pred) {} |
| 338 | |
| 339 | // Operation |
| 340 | template<typename CharT> |
| 341 | bool operator()( CharT Ch ) const |
| 342 | { |
| 343 | return !m_Pred(Ch); |
| 344 | } |
| 345 | |
| 346 | private: |
| 347 | PredT m_Pred; |
| 348 | }; |
| 349 | |
| 350 | } // namespace detail |
| 351 | } // namespace algorithm |
| 352 | } // namespace boost |
| 353 | |
| 354 | |
| 355 | #endif // BOOST_STRING_CLASSIFICATION_DETAIL_HPP |
| 1 | // Components for manipulating sequences of characters -*- C++ -*- |
| 2 | |
| 3 | // Copyright (C) 1997-2024 Free Software Foundation, Inc. |
| 4 | // |
| 5 | // This file is part of the GNU ISO C++ Library. This library is free |
| 6 | // software; you can redistribute it and/or modify it under the |
| 7 | // terms of the GNU General Public License as published by the |
| 8 | // Free Software Foundation; either version 3, or (at your option) |
| 9 | // any later version. |
| 10 | |
| 11 | // This library is distributed in the hope that it will be useful, |
| 12 | // but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | // GNU General Public License for more details. |
| 15 | |
| 16 | // Under Section 7 of GPL version 3, you are granted additional |
| 17 | // permissions described in the GCC Runtime Library Exception, version |
| 18 | // 3.1, as published by the Free Software Foundation. |
| 19 | |
| 20 | // You should have received a copy of the GNU General Public License and |
| 21 | // a copy of the GCC Runtime Library Exception along with this program; |
| 22 | // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see |
| 23 | // <http://www.gnu.org/licenses/>. |
| 24 | |
| 25 | /** @file bits/basic_string.h |
| 26 | * This is an internal header file, included by other library headers. |
| 27 | * Do not attempt to use it directly. @headername{string} |
| 28 | */ |
| 29 | |
| 30 | // |
| 31 | // ISO C++ 14882: 21 Strings library |
| 32 | // |
| 33 | |
| 34 | #ifndef _BASIC_STRING_H1 |
| 35 | #define _BASIC_STRING_H1 1 |
| 36 | |
| 37 | #pragma GCC system_header |
| 38 | |
| 39 | #include <ext/alloc_traits.h> |
| 40 | #include <debug/debug.h> |
| 41 | |
| 42 | #if __cplusplus202002L >= 201103L |
| 43 | #include <initializer_list> |
| 44 | #endif |
| 45 | |
| 46 | #if __cplusplus202002L >= 201703L |
| 47 | # include <string_view> |
| 48 | #endif |
| 49 | |
| 50 | #if __cplusplus202002L > 202302L |
| 51 | # include <charconv> |
| 52 | #endif |
| 53 | |
| 54 | #include <bits/version.h> |
| 55 | |
| 56 | #if ! _GLIBCXX_USE_CXX11_ABI1 |
| 57 | # include "cow_string.h" |
| 58 | #else |
| 59 | |
| 60 | namespace std _GLIBCXX_VISIBILITY(default)__attribute__ ((__visibility__ ("default"))) |
| 61 | { |
| 62 | _GLIBCXX_BEGIN_NAMESPACE_VERSION |
| 63 | _GLIBCXX_BEGIN_NAMESPACE_CXX11namespace __cxx11 { |
| 64 | |
| 65 | /** |
| 66 | * @class basic_string basic_string.h <string> |
| 67 | * @brief Managing sequences of characters and character-like objects. |
| 68 | * |
| 69 | * @ingroup strings |
| 70 | * @ingroup sequences |
| 71 | * @headerfile string |
| 72 | * @since C++98 |
| 73 | * |
| 74 | * @tparam _CharT Type of character |
| 75 | * @tparam _Traits Traits for character type, defaults to |
| 76 | * char_traits<_CharT>. |
| 77 | * @tparam _Alloc Allocator type, defaults to allocator<_CharT>. |
| 78 | * |
| 79 | * Meets the requirements of a <a href="tables.html#65">container</a>, a |
| 80 | * <a href="tables.html#66">reversible container</a>, and a |
| 81 | * <a href="tables.html#67">sequence</a>. Of the |
| 82 | * <a href="tables.html#68">optional sequence requirements</a>, only |
| 83 | * @c push_back, @c at, and @c %array access are supported. |
| 84 | */ |
| 85 | template<typename _CharT, typename _Traits, typename _Alloc> |
| 86 | class basic_string |
| 87 | { |
| 88 | #if __cplusplus202002L >= 202002L |
| 89 | static_assert(is_same_v<_CharT, typename _Traits::char_type>); |
| 90 | static_assert(is_same_v<_CharT, typename _Alloc::value_type>); |
| 91 | using _Char_alloc_type = _Alloc; |
| 92 | #else |
| 93 | typedef typename __gnu_cxx::__alloc_traits<_Alloc>::template |
| 94 | rebind<_CharT>::other _Char_alloc_type; |
| 95 | #endif |
| 96 | |
| 97 | typedef __gnu_cxx::__alloc_traits<_Char_alloc_type> _Alloc_traits; |
| 98 | |
| 99 | // Types: |
| 100 | public: |
| 101 | typedef _Traits traits_type; |
| 102 | typedef typename _Traits::char_type value_type; |
| 103 | typedef _Char_alloc_type allocator_type; |
| 104 | typedef typename _Alloc_traits::size_type size_type; |
| 105 | typedef typename _Alloc_traits::difference_type difference_type; |
| 106 | typedef typename _Alloc_traits::reference reference; |
| 107 | typedef typename _Alloc_traits::const_reference const_reference; |
| 108 | typedef typename _Alloc_traits::pointer pointer; |
| 109 | typedef typename _Alloc_traits::const_pointer const_pointer; |
| 110 | typedef __gnu_cxx::__normal_iterator<pointer, basic_string> iterator; |
| 111 | typedef __gnu_cxx::__normal_iterator<const_pointer, basic_string> |
| 112 | const_iterator; |
| 113 | typedef std::reverse_iterator<const_iterator> const_reverse_iterator; |
| 114 | typedef std::reverse_iterator<iterator> reverse_iterator; |
| 115 | |
| 116 | /// Value returned by various member functions when they fail. |
| 117 | static const size_type npos = static_cast<size_type>(-1); |
| 118 | |
| 119 | protected: |
| 120 | // type used for positions in insert, erase etc. |
| 121 | #if __cplusplus202002L < 201103L |
| 122 | typedef iterator __const_iterator; |
| 123 | #else |
| 124 | typedef const_iterator __const_iterator; |
| 125 | #endif |
| 126 | |
| 127 | private: |
| 128 | static _GLIBCXX20_CONSTEXPRconstexpr pointer |
| 129 | _S_allocate(_Char_alloc_type& __a, size_type __n) |
| 130 | { |
| 131 | pointer __p = _Alloc_traits::allocate(__a, __n); |
| 132 | #if __glibcxx_constexpr_string201907L >= 201907L |
| 133 | // std::char_traits begins the lifetime of characters, |
| 134 | // but custom traits might not, so do it here. |
| 135 | if constexpr (!is_same_v<_Traits, char_traits<_CharT>>) |
| 136 | if (std::__is_constant_evaluated()) |
| 137 | // Begin the lifetime of characters in allocated storage. |
| 138 | for (size_type __i = 0; __i < __n; ++__i) |
| 139 | std::construct_at(__builtin_addressof(__p[__i])); |
| 140 | #endif |
| 141 | return __p; |
| 142 | } |
| 143 | |
| 144 | #if __cplusplus202002L >= 201703L |
| 145 | // A helper type for avoiding boiler-plate. |
| 146 | typedef basic_string_view<_CharT, _Traits> __sv_type; |
| 147 | |
| 148 | template<typename _Tp, typename _Res> |
| 149 | using _If_sv = enable_if_t< |
| 150 | __and_<is_convertible<const _Tp&, __sv_type>, |
| 151 | __not_<is_convertible<const _Tp*, const basic_string*>>, |
| 152 | __not_<is_convertible<const _Tp&, const _CharT*>>>::value, |
| 153 | _Res>; |
| 154 | |
| 155 | // Allows an implicit conversion to __sv_type. |
| 156 | _GLIBCXX20_CONSTEXPRconstexpr |
| 157 | static __sv_type |
| 158 | _S_to_string_view(__sv_type __svt) noexcept |
| 159 | { return __svt; } |
| 160 | |
| 161 | // Wraps a string_view by explicit conversion and thus |
| 162 | // allows to add an internal constructor that does not |
| 163 | // participate in overload resolution when a string_view |
| 164 | // is provided. |
| 165 | struct __sv_wrapper |
| 166 | { |
| 167 | _GLIBCXX20_CONSTEXPRconstexpr explicit |
| 168 | __sv_wrapper(__sv_type __sv) noexcept : _M_sv(__sv) { } |
| 169 | |
| 170 | __sv_type _M_sv; |
| 171 | }; |
| 172 | |
| 173 | /** |
| 174 | * @brief Only internally used: Construct string from a string view |
| 175 | * wrapper. |
| 176 | * @param __svw string view wrapper. |
| 177 | * @param __a Allocator to use. |
| 178 | */ |
| 179 | _GLIBCXX20_CONSTEXPRconstexpr |
| 180 | explicit |
| 181 | basic_string(__sv_wrapper __svw, const _Alloc& __a) |
| 182 | : basic_string(__svw._M_sv.data(), __svw._M_sv.size(), __a) { } |
| 183 | #endif |
| 184 | |
| 185 | // Use empty-base optimization: http://www.cantrip.org/emptyopt.html |
| 186 | struct _Alloc_hider : allocator_type // TODO check __is_final |
| 187 | { |
| 188 | #if __cplusplus202002L < 201103L |
| 189 | _Alloc_hider(pointer __dat, const _Alloc& __a = _Alloc()) |
| 190 | : allocator_type(__a), _M_p(__dat) { } |
| 191 | #else |
| 192 | _GLIBCXX20_CONSTEXPRconstexpr |
| 193 | _Alloc_hider(pointer __dat, const _Alloc& __a) |
| 194 | : allocator_type(__a), _M_p(__dat) { } |
| 195 | |
| 196 | _GLIBCXX20_CONSTEXPRconstexpr |
| 197 | _Alloc_hider(pointer __dat, _Alloc&& __a = _Alloc()) |
| 198 | : allocator_type(std::move(__a)), _M_p(__dat) { } |
| 199 | #endif |
| 200 | |
| 201 | pointer _M_p; // The actual data. |
| 202 | }; |
| 203 | |
| 204 | _Alloc_hider _M_dataplus; |
| 205 | size_type _M_string_length; |
| 206 | |
| 207 | enum { _S_local_capacity = 15 / sizeof(_CharT) }; |
| 208 | |
| 209 | union |
| 210 | { |
| 211 | _CharT _M_local_buf[_S_local_capacity + 1]; |
| 212 | size_type _M_allocated_capacity; |
| 213 | }; |
| 214 | |
| 215 | _GLIBCXX20_CONSTEXPRconstexpr |
| 216 | void |
| 217 | _M_data(pointer __p) |
| 218 | { _M_dataplus._M_p = __p; } |
| 219 | |
| 220 | _GLIBCXX20_CONSTEXPRconstexpr |
| 221 | void |
| 222 | _M_length(size_type __length) |
| 223 | { _M_string_length = __length; } |
| 224 | |
| 225 | _GLIBCXX20_CONSTEXPRconstexpr |
| 226 | pointer |
| 227 | _M_data() const |
| 228 | { return _M_dataplus._M_p; } |
| 229 | |
| 230 | _GLIBCXX20_CONSTEXPRconstexpr |
| 231 | pointer |
| 232 | _M_local_data() |
| 233 | { |
| 234 | #if __cplusplus202002L >= 201103L |
| 235 | return std::pointer_traits<pointer>::pointer_to(*_M_local_buf); |
| 236 | #else |
| 237 | return pointer(_M_local_buf); |
| 238 | #endif |
| 239 | } |
| 240 | |
| 241 | _GLIBCXX20_CONSTEXPRconstexpr |
| 242 | const_pointer |
| 243 | _M_local_data() const |
| 244 | { |
| 245 | #if __cplusplus202002L >= 201103L |
| 246 | return std::pointer_traits<const_pointer>::pointer_to(*_M_local_buf); |
| 247 | #else |
| 248 | return const_pointer(_M_local_buf); |
| 249 | #endif |
| 250 | } |
| 251 | |
| 252 | _GLIBCXX20_CONSTEXPRconstexpr |
| 253 | void |
| 254 | _M_capacity(size_type __capacity) |
| 255 | { _M_allocated_capacity = __capacity; } |
| 256 | |
| 257 | _GLIBCXX20_CONSTEXPRconstexpr |
| 258 | void |
| 259 | _M_set_length(size_type __n) |
| 260 | { |
| 261 | _M_length(__n); |
| 262 | traits_type::assign(_M_data()[__n], _CharT()); |
| 263 | } |
| 264 | |
| 265 | _GLIBCXX20_CONSTEXPRconstexpr |
| 266 | bool |
| 267 | _M_is_local() const |
| 268 | { |
| 269 | if (_M_data() == _M_local_data()) |
| 270 | { |
| 271 | if (_M_string_length > _S_local_capacity) |
| 272 | __builtin_unreachable(); |
| 273 | return true; |
| 274 | } |
| 275 | return false; |
| 276 | } |
| 277 | |
| 278 | // Create & Destroy |
| 279 | _GLIBCXX20_CONSTEXPRconstexpr |
| 280 | pointer |
| 281 | _M_create(size_type&, size_type); |
| 282 | |
| 283 | _GLIBCXX20_CONSTEXPRconstexpr |
| 284 | void |
| 285 | _M_dispose() |
| 286 | { |
| 287 | if (!_M_is_local()) |
| 288 | _M_destroy(_M_allocated_capacity); |
| 289 | } |
| 290 | |
| 291 | _GLIBCXX20_CONSTEXPRconstexpr |
| 292 | void |
| 293 | _M_destroy(size_type __size) throw() |
| 294 | { _Alloc_traits::deallocate(_M_get_allocator(), _M_data(), __size + 1); } |
| 295 | |
| 296 | #if __cplusplus202002L < 201103L || defined _GLIBCXX_DEFINING_STRING_INSTANTIATIONS |
| 297 | // _M_construct_aux is used to implement the 21.3.1 para 15 which |
| 298 | // requires special behaviour if _InIterator is an integral type |
| 299 | template<typename _InIterator> |
| 300 | void |
| 301 | _M_construct_aux(_InIterator __beg, _InIterator __end, |
| 302 | std::__false_type) |
| 303 | { |
| 304 | typedef typename iterator_traits<_InIterator>::iterator_category _Tag; |
| 305 | _M_construct(__beg, __end, _Tag()); |
| 306 | } |
| 307 | |
| 308 | // _GLIBCXX_RESOLVE_LIB_DEFECTS |
| 309 | // 438. Ambiguity in the "do the right thing" clause |
| 310 | template<typename _Integer> |
| 311 | void |
| 312 | _M_construct_aux(_Integer __beg, _Integer __end, std::__true_type) |
| 313 | { _M_construct_aux_2(static_cast<size_type>(__beg), __end); } |
| 314 | |
| 315 | void |
| 316 | _M_construct_aux_2(size_type __req, _CharT __c) |
| 317 | { _M_construct(__req, __c); } |
| 318 | #endif |
| 319 | |
| 320 | // For Input Iterators, used in istreambuf_iterators, etc. |
| 321 | template<typename _InIterator> |
| 322 | _GLIBCXX20_CONSTEXPRconstexpr |
| 323 | void |
| 324 | _M_construct(_InIterator __beg, _InIterator __end, |
| 325 | std::input_iterator_tag); |
| 326 | |
| 327 | // For forward_iterators up to random_access_iterators, used for |
| 328 | // string::iterator, _CharT*, etc. |
| 329 | template<typename _FwdIterator> |
| 330 | _GLIBCXX20_CONSTEXPRconstexpr |
| 331 | void |
| 332 | _M_construct(_FwdIterator __beg, _FwdIterator __end, |
| 333 | std::forward_iterator_tag); |
| 334 | |
| 335 | _GLIBCXX20_CONSTEXPRconstexpr |
| 336 | void |
| 337 | _M_construct(size_type __req, _CharT __c); |
| 338 | |
| 339 | _GLIBCXX20_CONSTEXPRconstexpr |
| 340 | allocator_type& |
| 341 | _M_get_allocator() |
| 342 | { return _M_dataplus; } |
| 343 | |
| 344 | _GLIBCXX20_CONSTEXPRconstexpr |
| 345 | const allocator_type& |
| 346 | _M_get_allocator() const |
| 347 | { return _M_dataplus; } |
| 348 | |
| 349 | // Ensure that _M_local_buf is the active member of the union. |
| 350 | __attribute__((__always_inline__)) |
| 351 | _GLIBCXX14_CONSTEXPRconstexpr |
| 352 | void |
| 353 | _M_init_local_buf() _GLIBCXX_NOEXCEPTnoexcept |
| 354 | { |
| 355 | #if __glibcxx_is_constant_evaluated201811L |
| 356 | if (std::is_constant_evaluated()) |
| 357 | for (size_type __i = 0; __i <= _S_local_capacity; ++__i) |
| 358 | _M_local_buf[__i] = _CharT(); |
| 359 | #endif |
| 360 | } |
| 361 | |
| 362 | __attribute__((__always_inline__)) |
| 363 | _GLIBCXX14_CONSTEXPRconstexpr |
| 364 | pointer |
| 365 | _M_use_local_data() _GLIBCXX_NOEXCEPTnoexcept |
| 366 | { |
| 367 | #if __cpp_lib_is_constant_evaluated201811L |
| 368 | _M_init_local_buf(); |
| 369 | #endif |
| 370 | return _M_local_data(); |
| 371 | } |
| 372 | |
| 373 | private: |
| 374 | |
| 375 | #ifdef _GLIBCXX_DISAMBIGUATE_REPLACE_INST |
| 376 | // The explicit instantiations in misc-inst.cc require this due to |
| 377 | // https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64063 |
| 378 | template<typename _Tp, bool _Requires = |
| 379 | !__are_same<_Tp, _CharT*>::__value |
| 380 | && !__are_same<_Tp, const _CharT*>::__value |
| 381 | && !__are_same<_Tp, iterator>::__value |
| 382 | && !__are_same<_Tp, const_iterator>::__value> |
| 383 | struct __enable_if_not_native_iterator |
| 384 | { typedef basic_string& __type; }; |
| 385 | template<typename _Tp> |
| 386 | struct __enable_if_not_native_iterator<_Tp, false> { }; |
| 387 | #endif |
| 388 | |
| 389 | _GLIBCXX20_CONSTEXPRconstexpr |
| 390 | size_type |
| 391 | _M_check(size_type __pos, const char* __s) const |
| 392 | { |
| 393 | if (__pos > this->size()) |
| 394 | __throw_out_of_range_fmt(__N("%s: __pos (which is %zu) > "("%s: __pos (which is %zu) > " "this->size() (which is %zu)" ) |
| 395 | "this->size() (which is %zu)")("%s: __pos (which is %zu) > " "this->size() (which is %zu)" ), |
| 396 | __s, __pos, this->size()); |
| 397 | return __pos; |
| 398 | } |
| 399 | |
| 400 | _GLIBCXX20_CONSTEXPRconstexpr |
| 401 | void |
| 402 | _M_check_length(size_type __n1, size_type __n2, const char* __s) const |
| 403 | { |
| 404 | if (this->max_size() - (this->size() - __n1) < __n2) |
| 405 | __throw_length_error(__N(__s)(__s)); |
| 406 | } |
| 407 | |
| 408 | |
| 409 | // NB: _M_limit doesn't check for a bad __pos value. |
| 410 | _GLIBCXX20_CONSTEXPRconstexpr |
| 411 | size_type |
| 412 | _M_limit(size_type __pos, size_type __off) const _GLIBCXX_NOEXCEPTnoexcept |
| 413 | { |
| 414 | const bool __testoff = __off < this->size() - __pos; |
| 415 | return __testoff ? __off : this->size() - __pos; |
| 416 | } |
| 417 | |
| 418 | // True if _Rep and source do not overlap. |
| 419 | bool |
| 420 | _M_disjunct(const _CharT* __s) const _GLIBCXX_NOEXCEPTnoexcept |
| 421 | { |
| 422 | return (less<const _CharT*>()(__s, _M_data()) |
| 423 | || less<const _CharT*>()(_M_data() + this->size(), __s)); |
| 424 | } |
| 425 | |
| 426 | // When __n = 1 way faster than the general multichar |
| 427 | // traits_type::copy/move/assign. |
| 428 | _GLIBCXX20_CONSTEXPRconstexpr |
| 429 | static void |
| 430 | _S_copy(_CharT* __d, const _CharT* __s, size_type __n) |
| 431 | { |
| 432 | if (__n == 1) |
| 433 | traits_type::assign(*__d, *__s); |
| 434 | else |
| 435 | traits_type::copy(__d, __s, __n); |
| 436 | } |
| 437 | |
| 438 | _GLIBCXX20_CONSTEXPRconstexpr |
| 439 | static void |
| 440 | _S_move(_CharT* __d, const _CharT* __s, size_type __n) |
| 441 | { |
| 442 | if (__n == 1) |
| 443 | traits_type::assign(*__d, *__s); |
| 444 | else |
| 445 | traits_type::move(__d, __s, __n); |
| 446 | } |
| 447 | |
| 448 | _GLIBCXX20_CONSTEXPRconstexpr |
| 449 | static void |
| 450 | _S_assign(_CharT* __d, size_type __n, _CharT __c) |
| 451 | { |
| 452 | if (__n == 1) |
| 453 | traits_type::assign(*__d, __c); |
| 454 | else |
| 455 | traits_type::assign(__d, __n, __c); |
| 456 | } |
| 457 | |
| 458 | // _S_copy_chars is a separate template to permit specialization |
| 459 | // to optimize for the common case of pointers as iterators. |
| 460 | template<class _Iterator> |
| 461 | _GLIBCXX20_CONSTEXPRconstexpr |
| 462 | static void |
| 463 | _S_copy_chars(_CharT* __p, _Iterator __k1, _Iterator __k2) |
| 464 | { |
| 465 | for (; __k1 != __k2; ++__k1, (void)++__p) |
| 466 | traits_type::assign(*__p, *__k1); // These types are off. |
| 467 | } |
| 468 | |
| 469 | _GLIBCXX20_CONSTEXPRconstexpr |
| 470 | static void |
| 471 | _S_copy_chars(_CharT* __p, iterator __k1, iterator __k2) _GLIBCXX_NOEXCEPTnoexcept |
| 472 | { _S_copy_chars(__p, __k1.base(), __k2.base()); } |
| 473 | |
| 474 | _GLIBCXX20_CONSTEXPRconstexpr |
| 475 | static void |
| 476 | _S_copy_chars(_CharT* __p, const_iterator __k1, const_iterator __k2) |
| 477 | _GLIBCXX_NOEXCEPTnoexcept |
| 478 | { _S_copy_chars(__p, __k1.base(), __k2.base()); } |
| 479 | |
| 480 | _GLIBCXX20_CONSTEXPRconstexpr |
| 481 | static void |
| 482 | _S_copy_chars(_CharT* __p, _CharT* __k1, _CharT* __k2) _GLIBCXX_NOEXCEPTnoexcept |
| 483 | { _S_copy(__p, __k1, __k2 - __k1); } |
| 484 | |
| 485 | _GLIBCXX20_CONSTEXPRconstexpr |
| 486 | static void |
| 487 | _S_copy_chars(_CharT* __p, const _CharT* __k1, const _CharT* __k2) |
| 488 | _GLIBCXX_NOEXCEPTnoexcept |
| 489 | { _S_copy(__p, __k1, __k2 - __k1); } |
| 490 | |
| 491 | _GLIBCXX20_CONSTEXPRconstexpr |
| 492 | static int |
| 493 | _S_compare(size_type __n1, size_type __n2) _GLIBCXX_NOEXCEPTnoexcept |
| 494 | { |
| 495 | const difference_type __d = difference_type(__n1 - __n2); |
| 496 | |
| 497 | if (__d > __gnu_cxx::__numeric_traits<int>::__max) |
| 498 | return __gnu_cxx::__numeric_traits<int>::__max; |
| 499 | else if (__d < __gnu_cxx::__numeric_traits<int>::__min) |
| 500 | return __gnu_cxx::__numeric_traits<int>::__min; |
| 501 | else |
| 502 | return int(__d); |
| 503 | } |
| 504 | |
| 505 | _GLIBCXX20_CONSTEXPRconstexpr |
| 506 | void |
| 507 | _M_assign(const basic_string&); |
| 508 | |
| 509 | _GLIBCXX20_CONSTEXPRconstexpr |
| 510 | void |
| 511 | _M_mutate(size_type __pos, size_type __len1, const _CharT* __s, |
| 512 | size_type __len2); |
| 513 | |
| 514 | _GLIBCXX20_CONSTEXPRconstexpr |
| 515 | void |
| 516 | _M_erase(size_type __pos, size_type __n); |
| 517 | |
| 518 | public: |
| 519 | // Construct/copy/destroy: |
| 520 | // NB: We overload ctors in some cases instead of using default |
| 521 | // arguments, per 17.4.4.4 para. 2 item 2. |
| 522 | |
| 523 | /** |
| 524 | * @brief Default constructor creates an empty string. |
| 525 | */ |
| 526 | _GLIBCXX20_CONSTEXPRconstexpr |
| 527 | basic_string() |
| 528 | _GLIBCXX_NOEXCEPT_IF(is_nothrow_default_constructible<_Alloc>::value)noexcept(is_nothrow_default_constructible<_Alloc>::value ) |
| 529 | : _M_dataplus(_M_local_data()) |
| 530 | { |
| 531 | _M_init_local_buf(); |
| 532 | _M_set_length(0); |
| 533 | } |
| 534 | |
| 535 | /** |
| 536 | * @brief Construct an empty string using allocator @a a. |
| 537 | */ |
| 538 | _GLIBCXX20_CONSTEXPRconstexpr |
| 539 | explicit |
| 540 | basic_string(const _Alloc& __a) _GLIBCXX_NOEXCEPTnoexcept |
| 541 | : _M_dataplus(_M_local_data(), __a) |
| 542 | { |
| 543 | _M_init_local_buf(); |
| 544 | _M_set_length(0); |
| 545 | } |
| 546 | |
| 547 | /** |
| 548 | * @brief Construct string with copy of value of @a __str. |
| 549 | * @param __str Source string. |
| 550 | */ |
| 551 | _GLIBCXX20_CONSTEXPRconstexpr |
| 552 | basic_string(const basic_string& __str) |
| 553 | : _M_dataplus(_M_local_data(), |
| 554 | _Alloc_traits::_S_select_on_copy(__str._M_get_allocator())) |
| 555 | { |
| 556 | _M_construct(__str._M_data(), __str._M_data() + __str.length(), |
| 557 | std::forward_iterator_tag()); |
| 558 | } |
| 559 | |
| 560 | // _GLIBCXX_RESOLVE_LIB_DEFECTS |
| 561 | // 2583. no way to supply an allocator for basic_string(str, pos) |
| 562 | /** |
| 563 | * @brief Construct string as copy of a substring. |
| 564 | * @param __str Source string. |
| 565 | * @param __pos Index of first character to copy from. |
| 566 | * @param __a Allocator to use. |
| 567 | */ |
| 568 | _GLIBCXX20_CONSTEXPRconstexpr |
| 569 | basic_string(const basic_string& __str, size_type __pos, |
| 570 | const _Alloc& __a = _Alloc()) |
| 571 | : _M_dataplus(_M_local_data(), __a) |
| 572 | { |
| 573 | const _CharT* __start = __str._M_data() |
| 574 | + __str._M_check(__pos, "basic_string::basic_string"); |
| 575 | _M_construct(__start, __start + __str._M_limit(__pos, npos), |
| 576 | std::forward_iterator_tag()); |
| 577 | } |
| 578 | |
| 579 | /** |
| 580 | * @brief Construct string as copy of a substring. |
| 581 | * @param __str Source string. |
| 582 | * @param __pos Index of first character to copy from. |
| 583 | * @param __n Number of characters to copy. |
| 584 | */ |
| 585 | _GLIBCXX20_CONSTEXPRconstexpr |
| 586 | basic_string(const basic_string& __str, size_type __pos, |
| 587 | size_type __n) |
| 588 | : _M_dataplus(_M_local_data()) |
| 589 | { |
| 590 | const _CharT* __start = __str._M_data() |
| 591 | + __str._M_check(__pos, "basic_string::basic_string"); |
| 592 | _M_construct(__start, __start + __str._M_limit(__pos, __n), |
| 593 | std::forward_iterator_tag()); |
| 594 | } |
| 595 | |
| 596 | /** |
| 597 | * @brief Construct string as copy of a substring. |
| 598 | * @param __str Source string. |
| 599 | * @param __pos Index of first character to copy from. |
| 600 | * @param __n Number of characters to copy. |
| 601 | * @param __a Allocator to use. |
| 602 | */ |
| 603 | _GLIBCXX20_CONSTEXPRconstexpr |
| 604 | basic_string(const basic_string& __str, size_type __pos, |
| 605 | size_type __n, const _Alloc& __a) |
| 606 | : _M_dataplus(_M_local_data(), __a) |
| 607 | { |
| 608 | const _CharT* __start |
| 609 | = __str._M_data() + __str._M_check(__pos, "string::string"); |
| 610 | _M_construct(__start, __start + __str._M_limit(__pos, __n), |
| 611 | std::forward_iterator_tag()); |
| 612 | } |
| 613 | |
| 614 | /** |
| 615 | * @brief Construct string initialized by a character %array. |
| 616 | * @param __s Source character %array. |
| 617 | * @param __n Number of characters to copy. |
| 618 | * @param __a Allocator to use (default is default allocator). |
| 619 | * |
| 620 | * NB: @a __s must have at least @a __n characters, '\\0' |
| 621 | * has no special meaning. |
| 622 | */ |
| 623 | _GLIBCXX20_CONSTEXPRconstexpr |
| 624 | basic_string(const _CharT* __s, size_type __n, |
| 625 | const _Alloc& __a = _Alloc()) |
| 626 | : _M_dataplus(_M_local_data(), __a) |
| 627 | { |
| 628 | // NB: Not required, but considered best practice. |
| 629 | if (__s == 0 && __n > 0) |
| 630 | std::__throw_logic_error(__N("basic_string: "("basic_string: " "construction from null is not valid") |
| 631 | "construction from null is not valid")("basic_string: " "construction from null is not valid")); |
| 632 | _M_construct(__s, __s + __n, std::forward_iterator_tag()); |
| 633 | } |
| 634 | |
| 635 | /** |
| 636 | * @brief Construct string as copy of a C string. |
| 637 | * @param __s Source C string. |
| 638 | * @param __a Allocator to use (default is default allocator). |
| 639 | */ |
| 640 | #if __cpp_deduction_guides201703L && ! defined _GLIBCXX_DEFINING_STRING_INSTANTIATIONS |
| 641 | // _GLIBCXX_RESOLVE_LIB_DEFECTS |
| 642 | // 3076. basic_string CTAD ambiguity |
| 643 | template<typename = _RequireAllocator<_Alloc>> |
| 644 | #endif |
| 645 | _GLIBCXX20_CONSTEXPRconstexpr |
| 646 | basic_string(const _CharT* __s, const _Alloc& __a = _Alloc()) |
| 647 | : _M_dataplus(_M_local_data(), __a) |
| 648 | { |
| 649 | // NB: Not required, but considered best practice. |
| 650 | if (__s == 0) |
| 651 | std::__throw_logic_error(__N("basic_string: "("basic_string: " "construction from null is not valid") |
| 652 | "construction from null is not valid")("basic_string: " "construction from null is not valid")); |
| 653 | const _CharT* __end = __s + traits_type::length(__s); |
| 654 | _M_construct(__s, __end, forward_iterator_tag()); |
| 655 | } |
| 656 | |
| 657 | /** |
| 658 | * @brief Construct string as multiple characters. |
| 659 | * @param __n Number of characters. |
| 660 | * @param __c Character to use. |
| 661 | * @param __a Allocator to use (default is default allocator). |
| 662 | */ |
| 663 | #if __cpp_deduction_guides201703L && ! defined _GLIBCXX_DEFINING_STRING_INSTANTIATIONS |
| 664 | // _GLIBCXX_RESOLVE_LIB_DEFECTS |
| 665 | // 3076. basic_string CTAD ambiguity |
| 666 | template<typename = _RequireAllocator<_Alloc>> |
| 667 | #endif |
| 668 | _GLIBCXX20_CONSTEXPRconstexpr |
| 669 | basic_string(size_type __n, _CharT __c, const _Alloc& __a = _Alloc()) |
| 670 | : _M_dataplus(_M_local_data(), __a) |
| 671 | { _M_construct(__n, __c); } |
| 672 | |
| 673 | #if __cplusplus202002L >= 201103L |
| 674 | /** |
| 675 | * @brief Move construct string. |
| 676 | * @param __str Source string. |
| 677 | * |
| 678 | * The newly-created string contains the exact contents of @a __str. |
| 679 | * @a __str is a valid, but unspecified string. |
| 680 | */ |
| 681 | _GLIBCXX20_CONSTEXPRconstexpr |
| 682 | basic_string(basic_string&& __str) noexcept |
| 683 | : _M_dataplus(_M_local_data(), std::move(__str._M_get_allocator())) |
| 684 | { |
| 685 | if (__str._M_is_local()) |
| 686 | { |
| 687 | _M_init_local_buf(); |
| 688 | traits_type::copy(_M_local_buf, __str._M_local_buf, |
| 689 | __str.length() + 1); |
| 690 | } |
| 691 | else |
| 692 | { |
| 693 | _M_data(__str._M_data()); |
| 694 | _M_capacity(__str._M_allocated_capacity); |
| 695 | } |
| 696 | |
| 697 | // Must use _M_length() here not _M_set_length() because |
| 698 | // basic_stringbuf relies on writing into unallocated capacity so |
| 699 | // we mess up the contents if we put a '\0' in the string. |
| 700 | _M_length(__str.length()); |
| 701 | __str._M_data(__str._M_use_local_data()); |
| 702 | __str._M_set_length(0); |
| 703 | } |
| 704 | |
| 705 | /** |
| 706 | * @brief Construct string from an initializer %list. |
| 707 | * @param __l std::initializer_list of characters. |
| 708 | * @param __a Allocator to use (default is default allocator). |
| 709 | */ |
| 710 | _GLIBCXX20_CONSTEXPRconstexpr |
| 711 | basic_string(initializer_list<_CharT> __l, const _Alloc& __a = _Alloc()) |
| 712 | : _M_dataplus(_M_local_data(), __a) |
| 713 | { _M_construct(__l.begin(), __l.end(), std::forward_iterator_tag()); } |
| 714 | |
| 715 | _GLIBCXX20_CONSTEXPRconstexpr |
| 716 | basic_string(const basic_string& __str, const _Alloc& __a) |
| 717 | : _M_dataplus(_M_local_data(), __a) |
| 718 | { _M_construct(__str.begin(), __str.end(), std::forward_iterator_tag()); } |
| 719 | |
| 720 | _GLIBCXX20_CONSTEXPRconstexpr |
| 721 | basic_string(basic_string&& __str, const _Alloc& __a) |
| 722 | noexcept(_Alloc_traits::_S_always_equal()) |
| 723 | : _M_dataplus(_M_local_data(), __a) |
| 724 | { |
| 725 | if (__str._M_is_local()) |
| 726 | { |
| 727 | _M_init_local_buf(); |
| 728 | traits_type::copy(_M_local_buf, __str._M_local_buf, |
| 729 | __str.length() + 1); |
| 730 | _M_length(__str.length()); |
| 731 | __str._M_set_length(0); |
| 732 | } |
| 733 | else if (_Alloc_traits::_S_always_equal() |
| 734 | || __str.get_allocator() == __a) |
| 735 | { |
| 736 | _M_data(__str._M_data()); |
| 737 | _M_length(__str.length()); |
| 738 | _M_capacity(__str._M_allocated_capacity); |
| 739 | __str._M_data(__str._M_use_local_data()); |
| 740 | __str._M_set_length(0); |
| 741 | } |
| 742 | else |
| 743 | _M_construct(__str.begin(), __str.end(), std::forward_iterator_tag()); |
| 744 | } |
| 745 | #endif // C++11 |
| 746 | |
| 747 | #if __cplusplus202002L >= 202100L |
| 748 | basic_string(nullptr_t) = delete; |
| 749 | basic_string& operator=(nullptr_t) = delete; |
| 750 | #endif // C++23 |
| 751 | |
| 752 | /** |
| 753 | * @brief Construct string as copy of a range. |
| 754 | * @param __beg Start of range. |
| 755 | * @param __end End of range. |
| 756 | * @param __a Allocator to use (default is default allocator). |
| 757 | */ |
| 758 | #if __cplusplus202002L >= 201103L |
| 759 | template<typename _InputIterator, |
| 760 | typename = std::_RequireInputIter<_InputIterator>> |
| 761 | #else |
| 762 | template<typename _InputIterator> |
| 763 | #endif |
| 764 | _GLIBCXX20_CONSTEXPRconstexpr |
| 765 | basic_string(_InputIterator __beg, _InputIterator __end, |
| 766 | const _Alloc& __a = _Alloc()) |
| 767 | : _M_dataplus(_M_local_data(), __a), _M_string_length(0) |
| 768 | { |
| 769 | #if __cplusplus202002L >= 201103L |
| 770 | _M_construct(__beg, __end, std::__iterator_category(__beg)); |
| 771 | #else |
| 772 | typedef typename std::__is_integer<_InputIterator>::__type _Integral; |
| 773 | _M_construct_aux(__beg, __end, _Integral()); |
| 774 | #endif |
| 775 | } |
| 776 | |
| 777 | #if __cplusplus202002L >= 201703L |
| 778 | /** |
| 779 | * @brief Construct string from a substring of a string_view. |
| 780 | * @param __t Source object convertible to string view. |
| 781 | * @param __pos The index of the first character to copy from __t. |
| 782 | * @param __n The number of characters to copy from __t. |
| 783 | * @param __a Allocator to use. |
| 784 | */ |
| 785 | template<typename _Tp, |
| 786 | typename = enable_if_t<is_convertible_v<const _Tp&, __sv_type>>> |
| 787 | _GLIBCXX20_CONSTEXPRconstexpr |
| 788 | basic_string(const _Tp& __t, size_type __pos, size_type __n, |
| 789 | const _Alloc& __a = _Alloc()) |
| 790 | : basic_string(_S_to_string_view(__t).substr(__pos, __n), __a) { } |
| 791 | |
| 792 | /** |
| 793 | * @brief Construct string from a string_view. |
| 794 | * @param __t Source object convertible to string view. |
| 795 | * @param __a Allocator to use (default is default allocator). |
| 796 | */ |
| 797 | template<typename _Tp, typename = _If_sv<_Tp, void>> |
| 798 | _GLIBCXX20_CONSTEXPRconstexpr |
| 799 | explicit |
| 800 | basic_string(const _Tp& __t, const _Alloc& __a = _Alloc()) |
| 801 | : basic_string(__sv_wrapper(_S_to_string_view(__t)), __a) { } |
| 802 | #endif // C++17 |
| 803 | |
| 804 | /** |
| 805 | * @brief Destroy the string instance. |
| 806 | */ |
| 807 | _GLIBCXX20_CONSTEXPRconstexpr |
| 808 | ~basic_string() |
| 809 | { _M_dispose(); } |
| 810 | |
| 811 | /** |
| 812 | * @brief Assign the value of @a str to this string. |
| 813 | * @param __str Source string. |
| 814 | */ |
| 815 | _GLIBCXX20_CONSTEXPRconstexpr |
| 816 | basic_string& |
| 817 | operator=(const basic_string& __str) |
| 818 | { |
| 819 | return this->assign(__str); |
| 820 | } |
| 821 | |
| 822 | /** |
| 823 | * @brief Copy contents of @a s into this string. |
| 824 | * @param __s Source null-terminated string. |
| 825 | */ |
| 826 | _GLIBCXX20_CONSTEXPRconstexpr |
| 827 | basic_string& |
| 828 | operator=(const _CharT* __s) |
| 829 | { return this->assign(__s); } |
| 830 | |
| 831 | /** |
| 832 | * @brief Set value to string of length 1. |
| 833 | * @param __c Source character. |
| 834 | * |
| 835 | * Assigning to a character makes this string length 1 and |
| 836 | * (*this)[0] == @a c. |
| 837 | */ |
| 838 | _GLIBCXX20_CONSTEXPRconstexpr |
| 839 | basic_string& |
| 840 | operator=(_CharT __c) |
| 841 | { |
| 842 | this->assign(1, __c); |
| 843 | return *this; |
| 844 | } |
| 845 | |
| 846 | #if __cplusplus202002L >= 201103L |
| 847 | /** |
| 848 | * @brief Move assign the value of @a str to this string. |
| 849 | * @param __str Source string. |
| 850 | * |
| 851 | * The contents of @a str are moved into this string (without copying). |
| 852 | * @a str is a valid, but unspecified string. |
| 853 | */ |
| 854 | // _GLIBCXX_RESOLVE_LIB_DEFECTS |
| 855 | // 2063. Contradictory requirements for string move assignment |
| 856 | _GLIBCXX20_CONSTEXPRconstexpr |
| 857 | basic_string& |
| 858 | operator=(basic_string&& __str) |
| 859 | noexcept(_Alloc_traits::_S_nothrow_move()) |
| 860 | { |
| 861 | const bool __equal_allocs = _Alloc_traits::_S_always_equal() |
| 862 | || _M_get_allocator() == __str._M_get_allocator(); |
| 863 | if (!_M_is_local() && _Alloc_traits::_S_propagate_on_move_assign() |
| 864 | && !__equal_allocs) |
| 865 | { |
| 866 | // Destroy existing storage before replacing allocator. |
| 867 | _M_destroy(_M_allocated_capacity); |
| 868 | _M_data(_M_local_data()); |
| 869 | _M_set_length(0); |
| 870 | } |
| 871 | // Replace allocator if POCMA is true. |
| 872 | std::__alloc_on_move(_M_get_allocator(), __str._M_get_allocator()); |
| 873 | |
| 874 | if (__str._M_is_local()) |
| 875 | { |
| 876 | // We've always got room for a short string, just copy it |
| 877 | // (unless this is a self-move, because that would violate the |
| 878 | // char_traits::copy precondition that the ranges don't overlap). |
| 879 | if (__builtin_expect(std::__addressof(__str) != this, true)) |
| 880 | { |
| 881 | if (__str.size()) |
| 882 | this->_S_copy(_M_data(), __str._M_data(), __str.size()); |
| 883 | _M_set_length(__str.size()); |
| 884 | } |
| 885 | } |
| 886 | else if (_Alloc_traits::_S_propagate_on_move_assign() || __equal_allocs) |
| 887 | { |
| 888 | // Just move the allocated pointer, our allocator can free it. |
| 889 | pointer __data = nullptr; |
| 890 | size_type __capacity; |
| 891 | if (!_M_is_local()) |
| 892 | { |
| 893 | if (__equal_allocs) |
| 894 | { |
| 895 | // __str can reuse our existing storage. |
| 896 | __data = _M_data(); |
| 897 | __capacity = _M_allocated_capacity; |
| 898 | } |
| 899 | else // __str can't use it, so free it. |
| 900 | _M_destroy(_M_allocated_capacity); |
| 901 | } |
| 902 | |
| 903 | _M_data(__str._M_data()); |
| 904 | _M_length(__str.length()); |
| 905 | _M_capacity(__str._M_allocated_capacity); |
| 906 | if (__data) |
| 907 | { |
| 908 | __str._M_data(__data); |
| 909 | __str._M_capacity(__capacity); |
| 910 | } |
| 911 | else |
| 912 | __str._M_data(__str._M_use_local_data()); |
| 913 | } |
| 914 | else // Need to do a deep copy |
| 915 | _M_assign(__str); |
| 916 | __str.clear(); |
| 917 | return *this; |
| 918 | } |
| 919 | |
| 920 | /** |
| 921 | * @brief Set value to string constructed from initializer %list. |
| 922 | * @param __l std::initializer_list. |
| 923 | */ |
| 924 | _GLIBCXX20_CONSTEXPRconstexpr |
| 925 | basic_string& |
| 926 | operator=(initializer_list<_CharT> __l) |
| 927 | { |
| 928 | this->assign(__l.begin(), __l.size()); |
| 929 | return *this; |
| 930 | } |
| 931 | #endif // C++11 |
| 932 | |
| 933 | #if __cplusplus202002L >= 201703L |
| 934 | /** |
| 935 | * @brief Set value to string constructed from a string_view. |
| 936 | * @param __svt An object convertible to string_view. |
| 937 | */ |
| 938 | template<typename _Tp> |
| 939 | _GLIBCXX20_CONSTEXPRconstexpr |
| 940 | _If_sv<_Tp, basic_string&> |
| 941 | operator=(const _Tp& __svt) |
| 942 | { return this->assign(__svt); } |
| 943 | |
| 944 | /** |
| 945 | * @brief Convert to a string_view. |
| 946 | * @return A string_view. |
| 947 | */ |
| 948 | _GLIBCXX20_CONSTEXPRconstexpr |
| 949 | operator __sv_type() const noexcept |
| 950 | { return __sv_type(data(), size()); } |
| 951 | #endif // C++17 |
| 952 | |
| 953 | // Iterators: |
| 954 | /** |
| 955 | * Returns a read/write iterator that points to the first character in |
| 956 | * the %string. |
| 957 | */ |
| 958 | _GLIBCXX_NODISCARD[[__nodiscard__]] _GLIBCXX20_CONSTEXPRconstexpr |
| 959 | iterator |
| 960 | begin() _GLIBCXX_NOEXCEPTnoexcept |
| 961 | { return iterator(_M_data()); } |
| 962 | |
| 963 | /** |
| 964 | * Returns a read-only (constant) iterator that points to the first |
| 965 | * character in the %string. |
| 966 | */ |
| 967 | _GLIBCXX_NODISCARD[[__nodiscard__]] _GLIBCXX20_CONSTEXPRconstexpr |
| 968 | const_iterator |
| 969 | begin() const _GLIBCXX_NOEXCEPTnoexcept |
| 970 | { return const_iterator(_M_data()); } |
| 971 | |
| 972 | /** |
| 973 | * Returns a read/write iterator that points one past the last |
| 974 | * character in the %string. |
| 975 | */ |
| 976 | _GLIBCXX_NODISCARD[[__nodiscard__]] _GLIBCXX20_CONSTEXPRconstexpr |
| 977 | iterator |
| 978 | end() _GLIBCXX_NOEXCEPTnoexcept |
| 979 | { return iterator(_M_data() + this->size()); } |
| 980 | |
| 981 | /** |
| 982 | * Returns a read-only (constant) iterator that points one past the |
| 983 | * last character in the %string. |
| 984 | */ |
| 985 | _GLIBCXX_NODISCARD[[__nodiscard__]] _GLIBCXX20_CONSTEXPRconstexpr |
| 986 | const_iterator |
| 987 | end() const _GLIBCXX_NOEXCEPTnoexcept |
| 988 | { return const_iterator(_M_data() + this->size()); } |
| 989 | |
| 990 | /** |
| 991 | * Returns a read/write reverse iterator that points to the last |
| 992 | * character in the %string. Iteration is done in reverse element |
| 993 | * order. |
| 994 | */ |
| 995 | _GLIBCXX_NODISCARD[[__nodiscard__]] _GLIBCXX20_CONSTEXPRconstexpr |
| 996 | reverse_iterator |
| 997 | rbegin() _GLIBCXX_NOEXCEPTnoexcept |
| 998 | { return reverse_iterator(this->end()); } |
| 999 | |
| 1000 | /** |
| 1001 | * Returns a read-only (constant) reverse iterator that points |
| 1002 | * to the last character in the %string. Iteration is done in |
| 1003 | * reverse element order. |
| 1004 | */ |
| 1005 | _GLIBCXX_NODISCARD[[__nodiscard__]] _GLIBCXX20_CONSTEXPRconstexpr |
| 1006 | const_reverse_iterator |
| 1007 | rbegin() const _GLIBCXX_NOEXCEPTnoexcept |
| 1008 | { return const_reverse_iterator(this->end()); } |
| 1009 | |
| 1010 | /** |
| 1011 | * Returns a read/write reverse iterator that points to one before the |
| 1012 | * first character in the %string. Iteration is done in reverse |
| 1013 | * element order. |
| 1014 | */ |
| 1015 | _GLIBCXX_NODISCARD[[__nodiscard__]] _GLIBCXX20_CONSTEXPRconstexpr |
| 1016 | reverse_iterator |
| 1017 | rend() _GLIBCXX_NOEXCEPTnoexcept |
| 1018 | { return reverse_iterator(this->begin()); } |
| 1019 | |
| 1020 | /** |
| 1021 | * Returns a read-only (constant) reverse iterator that points |
| 1022 | * to one before the first character in the %string. Iteration |
| 1023 | * is done in reverse element order. |
| 1024 | */ |
| 1025 | _GLIBCXX_NODISCARD[[__nodiscard__]] _GLIBCXX20_CONSTEXPRconstexpr |
| 1026 | const_reverse_iterator |
| 1027 | rend() const _GLIBCXX_NOEXCEPTnoexcept |
| 1028 | { return const_reverse_iterator(this->begin()); } |
| 1029 | |
| 1030 | #if __cplusplus202002L >= 201103L |
| 1031 | /** |
| 1032 | * Returns a read-only (constant) iterator that points to the first |
| 1033 | * character in the %string. |
| 1034 | */ |
| 1035 | _GLIBCXX_NODISCARD[[__nodiscard__]] _GLIBCXX20_CONSTEXPRconstexpr |
| 1036 | const_iterator |
| 1037 | cbegin() const noexcept |
| 1038 | { return const_iterator(this->_M_data()); } |
| 1039 | |
| 1040 | /** |
| 1041 | * Returns a read-only (constant) iterator that points one past the |
| 1042 | * last character in the %string. |
| 1043 | */ |
| 1044 | _GLIBCXX_NODISCARD[[__nodiscard__]] _GLIBCXX20_CONSTEXPRconstexpr |
| 1045 | const_iterator |
| 1046 | cend() const noexcept |
| 1047 | { return const_iterator(this->_M_data() + this->size()); } |
| 1048 | |
| 1049 | /** |
| 1050 | * Returns a read-only (constant) reverse iterator that points |
| 1051 | * to the last character in the %string. Iteration is done in |
| 1052 | * reverse element order. |
| 1053 | */ |
| 1054 | _GLIBCXX_NODISCARD[[__nodiscard__]] _GLIBCXX20_CONSTEXPRconstexpr |
| 1055 | const_reverse_iterator |
| 1056 | crbegin() const noexcept |
| 1057 | { return const_reverse_iterator(this->end()); } |
| 1058 | |
| 1059 | /** |
| 1060 | * Returns a read-only (constant) reverse iterator that points |
| 1061 | * to one before the first character in the %string. Iteration |
| 1062 | * is done in reverse element order. |
| 1063 | */ |
| 1064 | _GLIBCXX_NODISCARD[[__nodiscard__]] _GLIBCXX20_CONSTEXPRconstexpr |
| 1065 | const_reverse_iterator |
| 1066 | crend() const noexcept |
| 1067 | { return const_reverse_iterator(this->begin()); } |
| 1068 | #endif |
| 1069 | |
| 1070 | public: |
| 1071 | // Capacity: |
| 1072 | /// Returns the number of characters in the string, not including any |
| 1073 | /// null-termination. |
| 1074 | _GLIBCXX_NODISCARD[[__nodiscard__]] _GLIBCXX20_CONSTEXPRconstexpr |
| 1075 | size_type |
| 1076 | size() const _GLIBCXX_NOEXCEPTnoexcept |
| 1077 | { return _M_string_length; } |
| 1078 | |
| 1079 | /// Returns the number of characters in the string, not including any |
| 1080 | /// null-termination. |
| 1081 | _GLIBCXX_NODISCARD[[__nodiscard__]] _GLIBCXX20_CONSTEXPRconstexpr |
| 1082 | size_type |
| 1083 | length() const _GLIBCXX_NOEXCEPTnoexcept |
| 1084 | { return _M_string_length; } |
| 1085 | |
| 1086 | /// Returns the size() of the largest possible %string. |
| 1087 | _GLIBCXX_NODISCARD[[__nodiscard__]] _GLIBCXX20_CONSTEXPRconstexpr |
| 1088 | size_type |
| 1089 | max_size() const _GLIBCXX_NOEXCEPTnoexcept |
| 1090 | { return (_Alloc_traits::max_size(_M_get_allocator()) - 1) / 2; } |
| 1091 | |
| 1092 | /** |
| 1093 | * @brief Resizes the %string to the specified number of characters. |
| 1094 | * @param __n Number of characters the %string should contain. |
| 1095 | * @param __c Character to fill any new elements. |
| 1096 | * |
| 1097 | * This function will %resize the %string to the specified |
| 1098 | * number of characters. If the number is smaller than the |
| 1099 | * %string's current size the %string is truncated, otherwise |
| 1100 | * the %string is extended and new elements are %set to @a __c. |
| 1101 | */ |
| 1102 | _GLIBCXX20_CONSTEXPRconstexpr |
| 1103 | void |
| 1104 | resize(size_type __n, _CharT __c); |
| 1105 | |
| 1106 | /** |
| 1107 | * @brief Resizes the %string to the specified number of characters. |
| 1108 | * @param __n Number of characters the %string should contain. |
| 1109 | * |
| 1110 | * This function will resize the %string to the specified length. If |
| 1111 | * the new size is smaller than the %string's current size the %string |
| 1112 | * is truncated, otherwise the %string is extended and new characters |
| 1113 | * are default-constructed. For basic types such as char, this means |
| 1114 | * setting them to 0. |
| 1115 | */ |
| 1116 | _GLIBCXX20_CONSTEXPRconstexpr |
| 1117 | void |
| 1118 | resize(size_type __n) |
| 1119 | { this->resize(__n, _CharT()); } |
| 1120 | |
| 1121 | #if __cplusplus202002L >= 201103L |
| 1122 | #pragma GCC diagnostic push |
| 1123 | #pragma GCC diagnostic ignored "-Wdeprecated-declarations" |
| 1124 | /// A non-binding request to reduce capacity() to size(). |
| 1125 | _GLIBCXX20_CONSTEXPRconstexpr |
| 1126 | void |
| 1127 | shrink_to_fit() noexcept |
| 1128 | { reserve(); } |
| 1129 | #pragma GCC diagnostic pop |
| 1130 | #endif |
| 1131 | |
| 1132 | #ifdef __glibcxx_string_resize_and_overwrite // C++ >= 23 |
| 1133 | /** Resize the string and call a function to fill it. |
| 1134 | * |
| 1135 | * @param __n The maximum size requested. |
| 1136 | * @param __op A callable object that writes characters to the string. |
| 1137 | * |
| 1138 | * This is a low-level function that is easy to misuse, be careful. |
| 1139 | * |
| 1140 | * Calling `str.resize_and_overwrite(n, op)` will reserve at least `n` |
| 1141 | * characters in `str`, evaluate `n2 = std::move(op)(str.data(), n)`, |
| 1142 | * and finally set the string length to `n2` (adding a null terminator |
| 1143 | * at the end). The function object `op` is allowed to write to the |
| 1144 | * extra capacity added by the initial reserve operation, which is not |
| 1145 | * allowed if you just call `str.reserve(n)` yourself. |
| 1146 | * |
| 1147 | * This can be used to efficiently fill a `string` buffer without the |
| 1148 | * overhead of zero-initializing characters that will be overwritten |
| 1149 | * anyway. |
| 1150 | * |
| 1151 | * The callable `op` must not access the string directly (only through |
| 1152 | * the pointer passed as its first argument), must not write more than |
| 1153 | * `n` characters to the string, must return a value no greater than `n`, |
| 1154 | * and must ensure that all characters up to the returned length are |
| 1155 | * valid after it returns (i.e. there must be no uninitialized values |
| 1156 | * left in the string after the call, because accessing them would |
| 1157 | * have undefined behaviour). If `op` exits by throwing an exception |
| 1158 | * the behaviour is undefined. |
| 1159 | * |
| 1160 | * @since C++23 |
| 1161 | */ |
| 1162 | template<typename _Operation> |
| 1163 | constexpr void |
| 1164 | resize_and_overwrite(size_type __n, _Operation __op); |
| 1165 | #endif |
| 1166 | |
| 1167 | #if __cplusplus202002L >= 201103L |
| 1168 | /// Non-standard version of resize_and_overwrite for C++11 and above. |
| 1169 | template<typename _Operation> |
| 1170 | _GLIBCXX20_CONSTEXPRconstexpr void |
| 1171 | __resize_and_overwrite(size_type __n, _Operation __op); |
| 1172 | #endif |
| 1173 | |
| 1174 | /** |
| 1175 | * Returns the total number of characters that the %string can hold |
| 1176 | * before needing to allocate more memory. |
| 1177 | */ |
| 1178 | _GLIBCXX_NODISCARD[[__nodiscard__]] _GLIBCXX20_CONSTEXPRconstexpr |
| 1179 | size_type |
| 1180 | capacity() const _GLIBCXX_NOEXCEPTnoexcept |
| 1181 | { |
| 1182 | return _M_is_local() ? size_type(_S_local_capacity) |
| 1183 | : _M_allocated_capacity; |
| 1184 | } |
| 1185 | |
| 1186 | /** |
| 1187 | * @brief Attempt to preallocate enough memory for specified number of |
| 1188 | * characters. |
| 1189 | * @param __res_arg Number of characters required. |
| 1190 | * @throw std::length_error If @a __res_arg exceeds @c max_size(). |
| 1191 | * |
| 1192 | * This function attempts to reserve enough memory for the |
| 1193 | * %string to hold the specified number of characters. If the |
| 1194 | * number requested is more than max_size(), length_error is |
| 1195 | * thrown. |
| 1196 | * |
| 1197 | * The advantage of this function is that if optimal code is a |
| 1198 | * necessity and the user can determine the string length that will be |
| 1199 | * required, the user can reserve the memory in %advance, and thus |
| 1200 | * prevent a possible reallocation of memory and copying of %string |
| 1201 | * data. |
| 1202 | */ |
| 1203 | _GLIBCXX20_CONSTEXPRconstexpr |
| 1204 | void |
| 1205 | reserve(size_type __res_arg); |
| 1206 | |
| 1207 | /** |
| 1208 | * Equivalent to shrink_to_fit(). |
| 1209 | */ |
| 1210 | #if __cplusplus202002L > 201703L |
| 1211 | [[deprecated("use shrink_to_fit() instead")]] |
| 1212 | #endif |
| 1213 | _GLIBCXX20_CONSTEXPRconstexpr |
| 1214 | void |
| 1215 | reserve(); |
| 1216 | |
| 1217 | /** |
| 1218 | * Erases the string, making it empty. |
| 1219 | */ |
| 1220 | _GLIBCXX20_CONSTEXPRconstexpr |
| 1221 | void |
| 1222 | clear() _GLIBCXX_NOEXCEPTnoexcept |
| 1223 | { _M_set_length(0); } |
| 1224 | |
| 1225 | /** |
| 1226 | * Returns true if the %string is empty. Equivalent to |
| 1227 | * <code>*this == ""</code>. |
| 1228 | */ |
| 1229 | _GLIBCXX_NODISCARD[[__nodiscard__]] _GLIBCXX20_CONSTEXPRconstexpr |
| 1230 | bool |
| 1231 | empty() const _GLIBCXX_NOEXCEPTnoexcept |
| 1232 | { return this->size() == 0; } |
| 1233 | |
| 1234 | // Element access: |
| 1235 | /** |
| 1236 | * @brief Subscript access to the data contained in the %string. |
| 1237 | * @param __pos The index of the character to access. |
| 1238 | * @return Read-only (constant) reference to the character. |
| 1239 | * |
| 1240 | * This operator allows for easy, array-style, data access. |
| 1241 | * Note that data access with this operator is unchecked and |
| 1242 | * out_of_range lookups are not defined. (For checked lookups |
| 1243 | * see at().) |
| 1244 | */ |
| 1245 | _GLIBCXX_NODISCARD[[__nodiscard__]] _GLIBCXX20_CONSTEXPRconstexpr |
| 1246 | const_reference |
| 1247 | operator[] (size_type __pos) const _GLIBCXX_NOEXCEPTnoexcept |
| 1248 | { |
| 1249 | __glibcxx_assert(__pos <= size())do { if (std::__is_constant_evaluated()) if (__builtin_expect (!bool(__pos <= size()), false)) std::__glibcxx_assert_fail (); } while (false); |
| 1250 | return _M_data()[__pos]; |
| 1251 | } |
| 1252 | |
| 1253 | /** |
| 1254 | * @brief Subscript access to the data contained in the %string. |
| 1255 | * @param __pos The index of the character to access. |
| 1256 | * @return Read/write reference to the character. |
| 1257 | * |
| 1258 | * This operator allows for easy, array-style, data access. |
| 1259 | * Note that data access with this operator is unchecked and |
| 1260 | * out_of_range lookups are not defined. (For checked lookups |
| 1261 | * see at().) |
| 1262 | */ |
| 1263 | _GLIBCXX_NODISCARD[[__nodiscard__]] _GLIBCXX20_CONSTEXPRconstexpr |
| 1264 | reference |
| 1265 | operator[](size_type __pos) |
| 1266 | { |
| 1267 | // Allow pos == size() both in C++98 mode, as v3 extension, |
| 1268 | // and in C++11 mode. |
| 1269 | __glibcxx_assert(__pos <= size())do { if (std::__is_constant_evaluated()) if (__builtin_expect (!bool(__pos <= size()), false)) std::__glibcxx_assert_fail (); } while (false); |
| 1270 | // In pedantic mode be strict in C++98 mode. |
| 1271 | _GLIBCXX_DEBUG_PEDASSERT(__cplusplus >= 201103L || __pos < size()); |
| 1272 | return _M_data()[__pos]; |
| 1273 | } |
| 1274 | |
| 1275 | /** |
| 1276 | * @brief Provides access to the data contained in the %string. |
| 1277 | * @param __n The index of the character to access. |
| 1278 | * @return Read-only (const) reference to the character. |
| 1279 | * @throw std::out_of_range If @a n is an invalid index. |
| 1280 | * |
| 1281 | * This function provides for safer data access. The parameter is |
| 1282 | * first checked that it is in the range of the string. The function |
| 1283 | * throws out_of_range if the check fails. |
| 1284 | */ |
| 1285 | _GLIBCXX_NODISCARD[[__nodiscard__]] _GLIBCXX20_CONSTEXPRconstexpr |
| 1286 | const_reference |
| 1287 | at(size_type __n) const |
| 1288 | { |
| 1289 | if (__n >= this->size()) |
| 1290 | __throw_out_of_range_fmt(__N("basic_string::at: __n "("basic_string::at: __n " "(which is %zu) >= this->size() " "(which is %zu)") |
| 1291 | "(which is %zu) >= this->size() "("basic_string::at: __n " "(which is %zu) >= this->size() " "(which is %zu)") |
| 1292 | "(which is %zu)")("basic_string::at: __n " "(which is %zu) >= this->size() " "(which is %zu)"), |
| 1293 | __n, this->size()); |
| 1294 | return _M_data()[__n]; |
| 1295 | } |
| 1296 | |
| 1297 | /** |
| 1298 | * @brief Provides access to the data contained in the %string. |
| 1299 | * @param __n The index of the character to access. |
| 1300 | * @return Read/write reference to the character. |
| 1301 | * @throw std::out_of_range If @a n is an invalid index. |
| 1302 | * |
| 1303 | * This function provides for safer data access. The parameter is |
| 1304 | * first checked that it is in the range of the string. The function |
| 1305 | * throws out_of_range if the check fails. |
| 1306 | */ |
| 1307 | _GLIBCXX_NODISCARD[[__nodiscard__]] _GLIBCXX20_CONSTEXPRconstexpr |
| 1308 | reference |
| 1309 | at(size_type __n) |
| 1310 | { |
| 1311 | if (__n >= size()) |
| 1312 | __throw_out_of_range_fmt(__N("basic_string::at: __n "("basic_string::at: __n " "(which is %zu) >= this->size() " "(which is %zu)") |
| 1313 | "(which is %zu) >= this->size() "("basic_string::at: __n " "(which is %zu) >= this->size() " "(which is %zu)") |
| 1314 | "(which is %zu)")("basic_string::at: __n " "(which is %zu) >= this->size() " "(which is %zu)"), |
| 1315 | __n, this->size()); |
| 1316 | return _M_data()[__n]; |
| 1317 | } |
| 1318 | |
| 1319 | #if __cplusplus202002L >= 201103L |
| 1320 | /** |
| 1321 | * Returns a read/write reference to the data at the first |
| 1322 | * element of the %string. |
| 1323 | */ |
| 1324 | _GLIBCXX_NODISCARD[[__nodiscard__]] _GLIBCXX20_CONSTEXPRconstexpr |
| 1325 | reference |
| 1326 | front() noexcept |
| 1327 | { |
| 1328 | __glibcxx_assert(!empty())do { if (std::__is_constant_evaluated()) if (__builtin_expect (!bool(!empty()), false)) std::__glibcxx_assert_fail(); } while (false); |
| 1329 | return operator[](0); |
| 1330 | } |
| 1331 | |
| 1332 | /** |
| 1333 | * Returns a read-only (constant) reference to the data at the first |
| 1334 | * element of the %string. |
| 1335 | */ |
| 1336 | _GLIBCXX_NODISCARD[[__nodiscard__]] _GLIBCXX20_CONSTEXPRconstexpr |
| 1337 | const_reference |
| 1338 | front() const noexcept |
| 1339 | { |
| 1340 | __glibcxx_assert(!empty())do { if (std::__is_constant_evaluated()) if (__builtin_expect (!bool(!empty()), false)) std::__glibcxx_assert_fail(); } while (false); |
| 1341 | return operator[](0); |
| 1342 | } |
| 1343 | |
| 1344 | /** |
| 1345 | * Returns a read/write reference to the data at the last |
| 1346 | * element of the %string. |
| 1347 | */ |
| 1348 | _GLIBCXX_NODISCARD[[__nodiscard__]] _GLIBCXX20_CONSTEXPRconstexpr |
| 1349 | reference |
| 1350 | back() noexcept |
| 1351 | { |
| 1352 | __glibcxx_assert(!empty())do { if (std::__is_constant_evaluated()) if (__builtin_expect (!bool(!empty()), false)) std::__glibcxx_assert_fail(); } while (false); |
| 1353 | return operator[](this->size() - 1); |
| 1354 | } |
| 1355 | |
| 1356 | /** |
| 1357 | * Returns a read-only (constant) reference to the data at the |
| 1358 | * last element of the %string. |
| 1359 | */ |
| 1360 | _GLIBCXX_NODISCARD[[__nodiscard__]] _GLIBCXX20_CONSTEXPRconstexpr |
| 1361 | const_reference |
| 1362 | back() const noexcept |
| 1363 | { |
| 1364 | __glibcxx_assert(!empty())do { if (std::__is_constant_evaluated()) if (__builtin_expect (!bool(!empty()), false)) std::__glibcxx_assert_fail(); } while (false); |
| 1365 | return operator[](this->size() - 1); |
| 1366 | } |
| 1367 | #endif |
| 1368 | |
| 1369 | // Modifiers: |
| 1370 | /** |
| 1371 | * @brief Append a string to this string. |
| 1372 | * @param __str The string to append. |
| 1373 | * @return Reference to this string. |
| 1374 | */ |
| 1375 | _GLIBCXX20_CONSTEXPRconstexpr |
| 1376 | basic_string& |
| 1377 | operator+=(const basic_string& __str) |
| 1378 | { return this->append(__str); } |
| 1379 | |
| 1380 | /** |
| 1381 | * @brief Append a C string. |
| 1382 | * @param __s The C string to append. |
| 1383 | * @return Reference to this string. |
| 1384 | */ |
| 1385 | _GLIBCXX20_CONSTEXPRconstexpr |
| 1386 | basic_string& |
| 1387 | operator+=(const _CharT* __s) |
| 1388 | { return this->append(__s); } |
| 1389 | |
| 1390 | /** |
| 1391 | * @brief Append a character. |
| 1392 | * @param __c The character to append. |
| 1393 | * @return Reference to this string. |
| 1394 | */ |
| 1395 | _GLIBCXX20_CONSTEXPRconstexpr |
| 1396 | basic_string& |
| 1397 | operator+=(_CharT __c) |
| 1398 | { |
| 1399 | this->push_back(__c); |
| 1400 | return *this; |
| 1401 | } |
| 1402 | |
| 1403 | #if __cplusplus202002L >= 201103L |
| 1404 | /** |
| 1405 | * @brief Append an initializer_list of characters. |
| 1406 | * @param __l The initializer_list of characters to be appended. |
| 1407 | * @return Reference to this string. |
| 1408 | */ |
| 1409 | _GLIBCXX20_CONSTEXPRconstexpr |
| 1410 | basic_string& |
| 1411 | operator+=(initializer_list<_CharT> __l) |
| 1412 | { return this->append(__l.begin(), __l.size()); } |
| 1413 | #endif // C++11 |
| 1414 | |
| 1415 | #if __cplusplus202002L >= 201703L |
| 1416 | /** |
| 1417 | * @brief Append a string_view. |
| 1418 | * @param __svt An object convertible to string_view to be appended. |
| 1419 | * @return Reference to this string. |
| 1420 | */ |
| 1421 | template<typename _Tp> |
| 1422 | _GLIBCXX20_CONSTEXPRconstexpr |
| 1423 | _If_sv<_Tp, basic_string&> |
| 1424 | operator+=(const _Tp& __svt) |
| 1425 | { return this->append(__svt); } |
| 1426 | #endif // C++17 |
| 1427 | |
| 1428 | /** |
| 1429 | * @brief Append a string to this string. |
| 1430 | * @param __str The string to append. |
| 1431 | * @return Reference to this string. |
| 1432 | */ |
| 1433 | _GLIBCXX20_CONSTEXPRconstexpr |
| 1434 | basic_string& |
| 1435 | append(const basic_string& __str) |
| 1436 | { return this->append(__str._M_data(), __str.size()); } |
| 1437 | |
| 1438 | /** |
| 1439 | * @brief Append a substring. |
| 1440 | * @param __str The string to append. |
| 1441 | * @param __pos Index of the first character of str to append. |
| 1442 | * @param __n The number of characters to append. |
| 1443 | * @return Reference to this string. |
| 1444 | * @throw std::out_of_range if @a __pos is not a valid index. |
| 1445 | * |
| 1446 | * This function appends @a __n characters from @a __str |
| 1447 | * starting at @a __pos to this string. If @a __n is is larger |
| 1448 | * than the number of available characters in @a __str, the |
| 1449 | * remainder of @a __str is appended. |
| 1450 | */ |
| 1451 | _GLIBCXX20_CONSTEXPRconstexpr |
| 1452 | basic_string& |
| 1453 | append(const basic_string& __str, size_type __pos, size_type __n = npos) |
| 1454 | { return this->append(__str._M_data() |
| 1455 | + __str._M_check(__pos, "basic_string::append"), |
| 1456 | __str._M_limit(__pos, __n)); } |
| 1457 | |
| 1458 | /** |
| 1459 | * @brief Append a C substring. |
| 1460 | * @param __s The C string to append. |
| 1461 | * @param __n The number of characters to append. |
| 1462 | * @return Reference to this string. |
| 1463 | */ |
| 1464 | _GLIBCXX20_CONSTEXPRconstexpr |
| 1465 | basic_string& |
| 1466 | append(const _CharT* __s, size_type __n) |
| 1467 | { |
| 1468 | __glibcxx_requires_string_len(__s, __n); |
| 1469 | _M_check_length(size_type(0), __n, "basic_string::append"); |
| 1470 | return _M_append(__s, __n); |
| 1471 | } |
| 1472 | |
| 1473 | /** |
| 1474 | * @brief Append a C string. |
| 1475 | * @param __s The C string to append. |
| 1476 | * @return Reference to this string. |
| 1477 | */ |
| 1478 | _GLIBCXX20_CONSTEXPRconstexpr |
| 1479 | basic_string& |
| 1480 | append(const _CharT* __s) |
| 1481 | { |
| 1482 | __glibcxx_requires_string(__s); |
| 1483 | const size_type __n = traits_type::length(__s); |
| 1484 | _M_check_length(size_type(0), __n, "basic_string::append"); |
| 1485 | return _M_append(__s, __n); |
| 1486 | } |
| 1487 | |
| 1488 | /** |
| 1489 | * @brief Append multiple characters. |
| 1490 | * @param __n The number of characters to append. |
| 1491 | * @param __c The character to use. |
| 1492 | * @return Reference to this string. |
| 1493 | * |
| 1494 | * Appends __n copies of __c to this string. |
| 1495 | */ |
| 1496 | _GLIBCXX20_CONSTEXPRconstexpr |
| 1497 | basic_string& |
| 1498 | append(size_type __n, _CharT __c) |
| 1499 | { return _M_replace_aux(this->size(), size_type(0), __n, __c); } |
| 1500 | |
| 1501 | #if __cplusplus202002L >= 201103L |
| 1502 | /** |
| 1503 | * @brief Append an initializer_list of characters. |
| 1504 | * @param __l The initializer_list of characters to append. |
| 1505 | * @return Reference to this string. |
| 1506 | */ |
| 1507 | _GLIBCXX20_CONSTEXPRconstexpr |
| 1508 | basic_string& |
| 1509 | append(initializer_list<_CharT> __l) |
| 1510 | { return this->append(__l.begin(), __l.size()); } |
| 1511 | #endif // C++11 |
| 1512 | |
| 1513 | /** |
| 1514 | * @brief Append a range of characters. |
| 1515 | * @param __first Iterator referencing the first character to append. |
| 1516 | * @param __last Iterator marking the end of the range. |
| 1517 | * @return Reference to this string. |
| 1518 | * |
| 1519 | * Appends characters in the range [__first,__last) to this string. |
| 1520 | */ |
| 1521 | #if __cplusplus202002L >= 201103L |
| 1522 | template<class _InputIterator, |
| 1523 | typename = std::_RequireInputIter<_InputIterator>> |
| 1524 | _GLIBCXX20_CONSTEXPRconstexpr |
| 1525 | #else |
| 1526 | template<class _InputIterator> |
| 1527 | #endif |
| 1528 | basic_string& |
| 1529 | append(_InputIterator __first, _InputIterator __last) |
| 1530 | { return this->replace(end(), end(), __first, __last); } |
| 1531 | |
| 1532 | #if __cplusplus202002L >= 201703L |
| 1533 | /** |
| 1534 | * @brief Append a string_view. |
| 1535 | * @param __svt An object convertible to string_view to be appended. |
| 1536 | * @return Reference to this string. |
| 1537 | */ |
| 1538 | template<typename _Tp> |
| 1539 | _GLIBCXX20_CONSTEXPRconstexpr |
| 1540 | _If_sv<_Tp, basic_string&> |
| 1541 | append(const _Tp& __svt) |
| 1542 | { |
| 1543 | __sv_type __sv = __svt; |
| 1544 | return this->append(__sv.data(), __sv.size()); |
| 1545 | } |
| 1546 | |
| 1547 | /** |
| 1548 | * @brief Append a range of characters from a string_view. |
| 1549 | * @param __svt An object convertible to string_view to be appended from. |
| 1550 | * @param __pos The position in the string_view to append from. |
| 1551 | * @param __n The number of characters to append from the string_view. |
| 1552 | * @return Reference to this string. |
| 1553 | */ |
| 1554 | template<typename _Tp> |
| 1555 | _GLIBCXX20_CONSTEXPRconstexpr |
| 1556 | _If_sv<_Tp, basic_string&> |
| 1557 | append(const _Tp& __svt, size_type __pos, size_type __n = npos) |
| 1558 | { |
| 1559 | __sv_type __sv = __svt; |
| 1560 | return _M_append(__sv.data() |
| 1561 | + std::__sv_check(__sv.size(), __pos, "basic_string::append"), |
| 1562 | std::__sv_limit(__sv.size(), __pos, __n)); |
| 1563 | } |
| 1564 | #endif // C++17 |
| 1565 | |
| 1566 | /** |
| 1567 | * @brief Append a single character. |
| 1568 | * @param __c Character to append. |
| 1569 | */ |
| 1570 | _GLIBCXX20_CONSTEXPRconstexpr |
| 1571 | void |
| 1572 | push_back(_CharT __c) |
| 1573 | { |
| 1574 | const size_type __size = this->size(); |
| 1575 | if (__size + 1 > this->capacity()) |
| 1576 | this->_M_mutate(__size, size_type(0), 0, size_type(1)); |
| 1577 | traits_type::assign(this->_M_data()[__size], __c); |
| 1578 | this->_M_set_length(__size + 1); |
| 1579 | } |
| 1580 | |
| 1581 | /** |
| 1582 | * @brief Set value to contents of another string. |
| 1583 | * @param __str Source string to use. |
| 1584 | * @return Reference to this string. |
| 1585 | */ |
| 1586 | _GLIBCXX20_CONSTEXPRconstexpr |
| 1587 | basic_string& |
| 1588 | assign(const basic_string& __str) |
| 1589 | { |
| 1590 | #if __cplusplus202002L >= 201103L |
| 1591 | if (_Alloc_traits::_S_propagate_on_copy_assign()) |
| 1592 | { |
| 1593 | if (!_Alloc_traits::_S_always_equal() && !_M_is_local() |
| 1594 | && _M_get_allocator() != __str._M_get_allocator()) |
| 1595 | { |
| 1596 | // Propagating allocator cannot free existing storage so must |
| 1597 | // deallocate it before replacing current allocator. |
| 1598 | if (__str.size() <= _S_local_capacity) |
| 1599 | { |
| 1600 | _M_destroy(_M_allocated_capacity); |
| 1601 | _M_data(_M_use_local_data()); |
| 1602 | _M_set_length(0); |
| 1603 | } |
| 1604 | else |
| 1605 | { |
| 1606 | const auto __len = __str.size(); |
| 1607 | auto __alloc = __str._M_get_allocator(); |
| 1608 | // If this allocation throws there are no effects: |
| 1609 | auto __ptr = _S_allocate(__alloc, __len + 1); |
| 1610 | _M_destroy(_M_allocated_capacity); |
| 1611 | _M_data(__ptr); |
| 1612 | _M_capacity(__len); |
| 1613 | _M_set_length(__len); |
| 1614 | } |
| 1615 | } |
| 1616 | std::__alloc_on_copy(_M_get_allocator(), __str._M_get_allocator()); |
| 1617 | } |
| 1618 | #endif |
| 1619 | this->_M_assign(__str); |
| 1620 | return *this; |
| 1621 | } |
| 1622 | |
| 1623 | #if __cplusplus202002L >= 201103L |
| 1624 | /** |
| 1625 | * @brief Set value to contents of another string. |
| 1626 | * @param __str Source string to use. |
| 1627 | * @return Reference to this string. |
| 1628 | * |
| 1629 | * This function sets this string to the exact contents of @a __str. |
| 1630 | * @a __str is a valid, but unspecified string. |
| 1631 | */ |
| 1632 | _GLIBCXX20_CONSTEXPRconstexpr |
| 1633 | basic_string& |
| 1634 | assign(basic_string&& __str) |
| 1635 | noexcept(_Alloc_traits::_S_nothrow_move()) |
| 1636 | { |
| 1637 | // _GLIBCXX_RESOLVE_LIB_DEFECTS |
| 1638 | // 2063. Contradictory requirements for string move assignment |
| 1639 | return *this = std::move(__str); |
| 1640 | } |
| 1641 | #endif // C++11 |
| 1642 | |
| 1643 | /** |
| 1644 | * @brief Set value to a substring of a string. |
| 1645 | * @param __str The string to use. |
| 1646 | * @param __pos Index of the first character of str. |
| 1647 | * @param __n Number of characters to use. |
| 1648 | * @return Reference to this string. |
| 1649 | * @throw std::out_of_range if @a pos is not a valid index. |
| 1650 | * |
| 1651 | * This function sets this string to the substring of @a __str |
| 1652 | * consisting of @a __n characters at @a __pos. If @a __n is |
| 1653 | * is larger than the number of available characters in @a |
| 1654 | * __str, the remainder of @a __str is used. |
| 1655 | */ |
| 1656 | _GLIBCXX20_CONSTEXPRconstexpr |
| 1657 | basic_string& |
| 1658 | assign(const basic_string& __str, size_type __pos, size_type __n = npos) |
| 1659 | { return _M_replace(size_type(0), this->size(), __str._M_data() |
| 1660 | + __str._M_check(__pos, "basic_string::assign"), |
| 1661 | __str._M_limit(__pos, __n)); } |
| 1662 | |
| 1663 | /** |
| 1664 | * @brief Set value to a C substring. |
| 1665 | * @param __s The C string to use. |
| 1666 | * @param __n Number of characters to use. |
| 1667 | * @return Reference to this string. |
| 1668 | * |
| 1669 | * This function sets the value of this string to the first @a __n |
| 1670 | * characters of @a __s. If @a __n is is larger than the number of |
| 1671 | * available characters in @a __s, the remainder of @a __s is used. |
| 1672 | */ |
| 1673 | _GLIBCXX20_CONSTEXPRconstexpr |
| 1674 | basic_string& |
| 1675 | assign(const _CharT* __s, size_type __n) |
| 1676 | { |
| 1677 | __glibcxx_requires_string_len(__s, __n); |
| 1678 | return _M_replace(size_type(0), this->size(), __s, __n); |
| 1679 | } |
| 1680 | |
| 1681 | /** |
| 1682 | * @brief Set value to contents of a C string. |
| 1683 | * @param __s The C string to use. |
| 1684 | * @return Reference to this string. |
| 1685 | * |
| 1686 | * This function sets the value of this string to the value of @a __s. |
| 1687 | * The data is copied, so there is no dependence on @a __s once the |
| 1688 | * function returns. |
| 1689 | */ |
| 1690 | _GLIBCXX20_CONSTEXPRconstexpr |
| 1691 | basic_string& |
| 1692 | assign(const _CharT* __s) |
| 1693 | { |
| 1694 | __glibcxx_requires_string(__s); |
| 1695 | return _M_replace(size_type(0), this->size(), __s, |
| 1696 | traits_type::length(__s)); |
| 1697 | } |
| 1698 | |
| 1699 | /** |
| 1700 | * @brief Set value to multiple characters. |
| 1701 | * @param __n Length of the resulting string. |
| 1702 | * @param __c The character to use. |
| 1703 | * @return Reference to this string. |
| 1704 | * |
| 1705 | * This function sets the value of this string to @a __n copies of |
| 1706 | * character @a __c. |
| 1707 | */ |
| 1708 | _GLIBCXX20_CONSTEXPRconstexpr |
| 1709 | basic_string& |
| 1710 | assign(size_type __n, _CharT __c) |
| 1711 | { return _M_replace_aux(size_type(0), this->size(), __n, __c); } |
| 1712 | |
| 1713 | /** |
| 1714 | * @brief Set value to a range of characters. |
| 1715 | * @param __first Iterator referencing the first character to append. |
| 1716 | * @param __last Iterator marking the end of the range. |
| 1717 | * @return Reference to this string. |
| 1718 | * |
| 1719 | * Sets value of string to characters in the range [__first,__last). |
| 1720 | */ |
| 1721 | #if __cplusplus202002L >= 201103L |
| 1722 | #pragma GCC diagnostic push |
| 1723 | #pragma GCC diagnostic ignored "-Wc++17-extensions" |
| 1724 | template<class _InputIterator, |
| 1725 | typename = std::_RequireInputIter<_InputIterator>> |
| 1726 | _GLIBCXX20_CONSTEXPRconstexpr |
| 1727 | basic_string& |
| 1728 | assign(_InputIterator __first, _InputIterator __last) |
| 1729 | { |
| 1730 | #if __cplusplus202002L >= 202002L |
| 1731 | if constexpr (contiguous_iterator<_InputIterator> |
| 1732 | && is_same_v<iter_value_t<_InputIterator>, _CharT>) |
| 1733 | #else |
| 1734 | if constexpr (__is_one_of<_InputIterator, const_iterator, iterator, |
| 1735 | const _CharT*, _CharT*>::value) |
| 1736 | #endif |
| 1737 | { |
| 1738 | __glibcxx_requires_valid_range(__first, __last); |
| 1739 | return _M_replace(size_type(0), size(), |
| 1740 | std::__to_address(__first), __last - __first); |
| 1741 | } |
| 1742 | else |
| 1743 | return *this = basic_string(__first, __last, get_allocator()); |
| 1744 | } |
| 1745 | #pragma GCC diagnostic pop |
| 1746 | #else |
| 1747 | template<class _InputIterator> |
| 1748 | basic_string& |
| 1749 | assign(_InputIterator __first, _InputIterator __last) |
| 1750 | { return this->replace(begin(), end(), __first, __last); } |
| 1751 | #endif |
| 1752 | |
| 1753 | #if __cplusplus202002L >= 201103L |
| 1754 | /** |
| 1755 | * @brief Set value to an initializer_list of characters. |
| 1756 | * @param __l The initializer_list of characters to assign. |
| 1757 | * @return Reference to this string. |
| 1758 | */ |
| 1759 | _GLIBCXX20_CONSTEXPRconstexpr |
| 1760 | basic_string& |
| 1761 | assign(initializer_list<_CharT> __l) |
| 1762 | { |
| 1763 | // The initializer_list array cannot alias the characters in *this |
| 1764 | // so we don't need to use replace to that case. |
| 1765 | const size_type __n = __l.size(); |
| 1766 | if (__n > capacity()) |
| 1767 | *this = basic_string(__l.begin(), __l.end(), get_allocator()); |
| 1768 | else |
| 1769 | { |
| 1770 | if (__n) |
| 1771 | _S_copy(_M_data(), __l.begin(), __n); |
| 1772 | _M_set_length(__n); |
| 1773 | } |
| 1774 | return *this; |
| 1775 | } |
| 1776 | #endif // C++11 |
| 1777 | |
| 1778 | #if __cplusplus202002L >= 201703L |
| 1779 | /** |
| 1780 | * @brief Set value from a string_view. |
| 1781 | * @param __svt The source object convertible to string_view. |
| 1782 | * @return Reference to this string. |
| 1783 | */ |
| 1784 | template<typename _Tp> |
| 1785 | _GLIBCXX20_CONSTEXPRconstexpr |
| 1786 | _If_sv<_Tp, basic_string&> |
| 1787 | assign(const _Tp& __svt) |
| 1788 | { |
| 1789 | __sv_type __sv = __svt; |
| 1790 | return this->assign(__sv.data(), __sv.size()); |
| 1791 | } |
| 1792 | |
| 1793 | /** |
| 1794 | * @brief Set value from a range of characters in a string_view. |
| 1795 | * @param __svt The source object convertible to string_view. |
| 1796 | * @param __pos The position in the string_view to assign from. |
| 1797 | * @param __n The number of characters to assign. |
| 1798 | * @return Reference to this string. |
| 1799 | */ |
| 1800 | template<typename _Tp> |
| 1801 | _GLIBCXX20_CONSTEXPRconstexpr |
| 1802 | _If_sv<_Tp, basic_string&> |
| 1803 | assign(const _Tp& __svt, size_type __pos, size_type __n = npos) |
| 1804 | { |
| 1805 | __sv_type __sv = __svt; |
| 1806 | return _M_replace(size_type(0), this->size(), |
| 1807 | __sv.data() |
| 1808 | + std::__sv_check(__sv.size(), __pos, "basic_string::assign"), |
| 1809 | std::__sv_limit(__sv.size(), __pos, __n)); |
| 1810 | } |
| 1811 | #endif // C++17 |
| 1812 | |
| 1813 | #if __cplusplus202002L >= 201103L |
| 1814 | /** |
| 1815 | * @brief Insert multiple characters. |
| 1816 | * @param __p Const_iterator referencing location in string to |
| 1817 | * insert at. |
| 1818 | * @param __n Number of characters to insert |
| 1819 | * @param __c The character to insert. |
| 1820 | * @return Iterator referencing the first inserted char. |
| 1821 | * @throw std::length_error If new length exceeds @c max_size(). |
| 1822 | * |
| 1823 | * Inserts @a __n copies of character @a __c starting at the |
| 1824 | * position referenced by iterator @a __p. If adding |
| 1825 | * characters causes the length to exceed max_size(), |
| 1826 | * length_error is thrown. The value of the string doesn't |
| 1827 | * change if an error is thrown. |
| 1828 | */ |
| 1829 | _GLIBCXX20_CONSTEXPRconstexpr |
| 1830 | iterator |
| 1831 | insert(const_iterator __p, size_type __n, _CharT __c) |
| 1832 | { |
| 1833 | _GLIBCXX_DEBUG_PEDASSERT(__p >= begin() && __p <= end()); |
| 1834 | const size_type __pos = __p - begin(); |
| 1835 | this->replace(__p, __p, __n, __c); |
| 1836 | return iterator(this->_M_data() + __pos); |
| 1837 | } |
| 1838 | #else |
| 1839 | /** |
| 1840 | * @brief Insert multiple characters. |
| 1841 | * @param __p Iterator referencing location in string to insert at. |
| 1842 | * @param __n Number of characters to insert |
| 1843 | * @param __c The character to insert. |
| 1844 | * @throw std::length_error If new length exceeds @c max_size(). |
| 1845 | * |
| 1846 | * Inserts @a __n copies of character @a __c starting at the |
| 1847 | * position referenced by iterator @a __p. If adding |
| 1848 | * characters causes the length to exceed max_size(), |
| 1849 | * length_error is thrown. The value of the string doesn't |
| 1850 | * change if an error is thrown. |
| 1851 | */ |
| 1852 | void |
| 1853 | insert(iterator __p, size_type __n, _CharT __c) |
| 1854 | { this->replace(__p, __p, __n, __c); } |
| 1855 | #endif |
| 1856 | |
| 1857 | #if __cplusplus202002L >= 201103L |
| 1858 | /** |
| 1859 | * @brief Insert a range of characters. |
| 1860 | * @param __p Const_iterator referencing location in string to |
| 1861 | * insert at. |
| 1862 | * @param __beg Start of range. |
| 1863 | * @param __end End of range. |
| 1864 | * @return Iterator referencing the first inserted char. |
| 1865 | * @throw std::length_error If new length exceeds @c max_size(). |
| 1866 | * |
| 1867 | * Inserts characters in range [beg,end). If adding characters |
| 1868 | * causes the length to exceed max_size(), length_error is |
| 1869 | * thrown. The value of the string doesn't change if an error |
| 1870 | * is thrown. |
| 1871 | */ |
| 1872 | template<class _InputIterator, |
| 1873 | typename = std::_RequireInputIter<_InputIterator>> |
| 1874 | _GLIBCXX20_CONSTEXPRconstexpr |
| 1875 | iterator |
| 1876 | insert(const_iterator __p, _InputIterator __beg, _InputIterator __end) |
| 1877 | { |
| 1878 | _GLIBCXX_DEBUG_PEDASSERT(__p >= begin() && __p <= end()); |
| 1879 | const size_type __pos = __p - begin(); |
| 1880 | this->replace(__p, __p, __beg, __end); |
| 1881 | return iterator(this->_M_data() + __pos); |
| 1882 | } |
| 1883 | #else |
| 1884 | /** |
| 1885 | * @brief Insert a range of characters. |
| 1886 | * @param __p Iterator referencing location in string to insert at. |
| 1887 | * @param __beg Start of range. |
| 1888 | * @param __end End of range. |
| 1889 | * @throw std::length_error If new length exceeds @c max_size(). |
| 1890 | * |
| 1891 | * Inserts characters in range [__beg,__end). If adding |
| 1892 | * characters causes the length to exceed max_size(), |
| 1893 | * length_error is thrown. The value of the string doesn't |
| 1894 | * change if an error is thrown. |
| 1895 | */ |
| 1896 | template<class _InputIterator> |
| 1897 | void |
| 1898 | insert(iterator __p, _InputIterator __beg, _InputIterator __end) |
| 1899 | { this->replace(__p, __p, __beg, __end); } |
| 1900 | #endif |
| 1901 | |
| 1902 | #if __cplusplus202002L >= 201103L |
| 1903 | /** |
| 1904 | * @brief Insert an initializer_list of characters. |
| 1905 | * @param __p Iterator referencing location in string to insert at. |
| 1906 | * @param __l The initializer_list of characters to insert. |
| 1907 | * @throw std::length_error If new length exceeds @c max_size(). |
| 1908 | */ |
| 1909 | _GLIBCXX20_CONSTEXPRconstexpr |
| 1910 | iterator |
| 1911 | insert(const_iterator __p, initializer_list<_CharT> __l) |
| 1912 | { return this->insert(__p, __l.begin(), __l.end()); } |
| 1913 | |
| 1914 | #ifdef _GLIBCXX_DEFINING_STRING_INSTANTIATIONS |
| 1915 | // See PR libstdc++/83328 |
| 1916 | void |
| 1917 | insert(iterator __p, initializer_list<_CharT> __l) |
| 1918 | { |
| 1919 | _GLIBCXX_DEBUG_PEDASSERT(__p >= begin() && __p <= end()); |
| 1920 | this->insert(__p - begin(), __l.begin(), __l.size()); |
| 1921 | } |
| 1922 | #endif |
| 1923 | #endif // C++11 |
| 1924 | |
| 1925 | /** |
| 1926 | * @brief Insert value of a string. |
| 1927 | * @param __pos1 Position in string to insert at. |
| 1928 | * @param __str The string to insert. |
| 1929 | * @return Reference to this string. |
| 1930 | * @throw std::length_error If new length exceeds @c max_size(). |
| 1931 | * |
| 1932 | * Inserts value of @a __str starting at @a __pos1. If adding |
| 1933 | * characters causes the length to exceed max_size(), |
| 1934 | * length_error is thrown. The value of the string doesn't |
| 1935 | * change if an error is thrown. |
| 1936 | */ |
| 1937 | _GLIBCXX20_CONSTEXPRconstexpr |
| 1938 | basic_string& |
| 1939 | insert(size_type __pos1, const basic_string& __str) |
| 1940 | { return this->replace(__pos1, size_type(0), |
| 1941 | __str._M_data(), __str.size()); } |
| 1942 | |
| 1943 | /** |
| 1944 | * @brief Insert a substring. |
| 1945 | * @param __pos1 Position in string to insert at. |
| 1946 | * @param __str The string to insert. |
| 1947 | * @param __pos2 Start of characters in str to insert. |
| 1948 | * @param __n Number of characters to insert. |
| 1949 | * @return Reference to this string. |
| 1950 | * @throw std::length_error If new length exceeds @c max_size(). |
| 1951 | * @throw std::out_of_range If @a pos1 > size() or |
| 1952 | * @a __pos2 > @a str.size(). |
| 1953 | * |
| 1954 | * Starting at @a pos1, insert @a __n character of @a __str |
| 1955 | * beginning with @a __pos2. If adding characters causes the |
| 1956 | * length to exceed max_size(), length_error is thrown. If @a |
| 1957 | * __pos1 is beyond the end of this string or @a __pos2 is |
| 1958 | * beyond the end of @a __str, out_of_range is thrown. The |
| 1959 | * value of the string doesn't change if an error is thrown. |
| 1960 | */ |
| 1961 | _GLIBCXX20_CONSTEXPRconstexpr |
| 1962 | basic_string& |
| 1963 | insert(size_type __pos1, const basic_string& __str, |
| 1964 | size_type __pos2, size_type __n = npos) |
| 1965 | { return this->replace(__pos1, size_type(0), __str._M_data() |
| 1966 | + __str._M_check(__pos2, "basic_string::insert"), |
| 1967 | __str._M_limit(__pos2, __n)); } |
| 1968 | |
| 1969 | /** |
| 1970 | * @brief Insert a C substring. |
| 1971 | * @param __pos Position in string to insert at. |
| 1972 | * @param __s The C string to insert. |
| 1973 | * @param __n The number of characters to insert. |
| 1974 | * @return Reference to this string. |
| 1975 | * @throw std::length_error If new length exceeds @c max_size(). |
| 1976 | * @throw std::out_of_range If @a __pos is beyond the end of this |
| 1977 | * string. |
| 1978 | * |
| 1979 | * Inserts the first @a __n characters of @a __s starting at @a |
| 1980 | * __pos. If adding characters causes the length to exceed |
| 1981 | * max_size(), length_error is thrown. If @a __pos is beyond |
| 1982 | * end(), out_of_range is thrown. The value of the string |
| 1983 | * doesn't change if an error is thrown. |
| 1984 | */ |
| 1985 | _GLIBCXX20_CONSTEXPRconstexpr |
| 1986 | basic_string& |
| 1987 | insert(size_type __pos, const _CharT* __s, size_type __n) |
| 1988 | { return this->replace(__pos, size_type(0), __s, __n); } |
| 1989 | |
| 1990 | /** |
| 1991 | * @brief Insert a C string. |
| 1992 | * @param __pos Position in string to insert at. |
| 1993 | * @param __s The C string to insert. |
| 1994 | * @return Reference to this string. |
| 1995 | * @throw std::length_error If new length exceeds @c max_size(). |
| 1996 | * @throw std::out_of_range If @a pos is beyond the end of this |
| 1997 | * string. |
| 1998 | * |
| 1999 | * Inserts the first @a n characters of @a __s starting at @a __pos. If |
| 2000 | * adding characters causes the length to exceed max_size(), |
| 2001 | * length_error is thrown. If @a __pos is beyond end(), out_of_range is |
| 2002 | * thrown. The value of the string doesn't change if an error is |
| 2003 | * thrown. |
| 2004 | */ |
| 2005 | _GLIBCXX20_CONSTEXPRconstexpr |
| 2006 | basic_string& |
| 2007 | insert(size_type __pos, const _CharT* __s) |
| 2008 | { |
| 2009 | __glibcxx_requires_string(__s); |
| 2010 | return this->replace(__pos, size_type(0), __s, |
| 2011 | traits_type::length(__s)); |
| 2012 | } |
| 2013 | |
| 2014 | /** |
| 2015 | * @brief Insert multiple characters. |
| 2016 | * @param __pos Index in string to insert at. |
| 2017 | * @param __n Number of characters to insert |
| 2018 | * @param __c The character to insert. |
| 2019 | * @return Reference to this string. |
| 2020 | * @throw std::length_error If new length exceeds @c max_size(). |
| 2021 | * @throw std::out_of_range If @a __pos is beyond the end of this |
| 2022 | * string. |
| 2023 | * |
| 2024 | * Inserts @a __n copies of character @a __c starting at index |
| 2025 | * @a __pos. If adding characters causes the length to exceed |
| 2026 | * max_size(), length_error is thrown. If @a __pos > length(), |
| 2027 | * out_of_range is thrown. The value of the string doesn't |
| 2028 | * change if an error is thrown. |
| 2029 | */ |
| 2030 | _GLIBCXX20_CONSTEXPRconstexpr |
| 2031 | basic_string& |
| 2032 | insert(size_type __pos, size_type __n, _CharT __c) |
| 2033 | { return _M_replace_aux(_M_check(__pos, "basic_string::insert"), |
| 2034 | size_type(0), __n, __c); } |
| 2035 | |
| 2036 | /** |
| 2037 | * @brief Insert one character. |
| 2038 | * @param __p Iterator referencing position in string to insert at. |
| 2039 | * @param __c The character to insert. |
| 2040 | * @return Iterator referencing newly inserted char. |
| 2041 | * @throw std::length_error If new length exceeds @c max_size(). |
| 2042 | * |
| 2043 | * Inserts character @a __c at position referenced by @a __p. |
| 2044 | * If adding character causes the length to exceed max_size(), |
| 2045 | * length_error is thrown. If @a __p is beyond end of string, |
| 2046 | * out_of_range is thrown. The value of the string doesn't |
| 2047 | * change if an error is thrown. |
| 2048 | */ |
| 2049 | _GLIBCXX20_CONSTEXPRconstexpr |
| 2050 | iterator |
| 2051 | insert(__const_iterator __p, _CharT __c) |
| 2052 | { |
| 2053 | _GLIBCXX_DEBUG_PEDASSERT(__p >= begin() && __p <= end()); |
| 2054 | const size_type __pos = __p - begin(); |
| 2055 | _M_replace_aux(__pos, size_type(0), size_type(1), __c); |
| 2056 | return iterator(_M_data() + __pos); |
| 2057 | } |
| 2058 | |
| 2059 | #if __cplusplus202002L >= 201703L |
| 2060 | /** |
| 2061 | * @brief Insert a string_view. |
| 2062 | * @param __pos Position in string to insert at. |
| 2063 | * @param __svt The object convertible to string_view to insert. |
| 2064 | * @return Reference to this string. |
| 2065 | */ |
| 2066 | template<typename _Tp> |
| 2067 | _GLIBCXX20_CONSTEXPRconstexpr |
| 2068 | _If_sv<_Tp, basic_string&> |
| 2069 | insert(size_type __pos, const _Tp& __svt) |
| 2070 | { |
| 2071 | __sv_type __sv = __svt; |
| 2072 | return this->insert(__pos, __sv.data(), __sv.size()); |
| 2073 | } |
| 2074 | |
| 2075 | /** |
| 2076 | * @brief Insert a string_view. |
| 2077 | * @param __pos1 Position in string to insert at. |
| 2078 | * @param __svt The object convertible to string_view to insert from. |
| 2079 | * @param __pos2 Start of characters in str to insert. |
| 2080 | * @param __n The number of characters to insert. |
| 2081 | * @return Reference to this string. |
| 2082 | */ |
| 2083 | template<typename _Tp> |
| 2084 | _GLIBCXX20_CONSTEXPRconstexpr |
| 2085 | _If_sv<_Tp, basic_string&> |
| 2086 | insert(size_type __pos1, const _Tp& __svt, |
| 2087 | size_type __pos2, size_type __n = npos) |
| 2088 | { |
| 2089 | __sv_type __sv = __svt; |
| 2090 | return this->replace(__pos1, size_type(0), |
| 2091 | __sv.data() |
| 2092 | + std::__sv_check(__sv.size(), __pos2, "basic_string::insert"), |
| 2093 | std::__sv_limit(__sv.size(), __pos2, __n)); |
| 2094 | } |
| 2095 | #endif // C++17 |
| 2096 | |
| 2097 | /** |
| 2098 | * @brief Remove characters. |
| 2099 | * @param __pos Index of first character to remove (default 0). |
| 2100 | * @param __n Number of characters to remove (default remainder). |
| 2101 | * @return Reference to this string. |
| 2102 | * @throw std::out_of_range If @a pos is beyond the end of this |
| 2103 | * string. |
| 2104 | * |
| 2105 | * Removes @a __n characters from this string starting at @a |
| 2106 | * __pos. The length of the string is reduced by @a __n. If |
| 2107 | * there are < @a __n characters to remove, the remainder of |
| 2108 | * the string is truncated. If @a __p is beyond end of string, |
| 2109 | * out_of_range is thrown. The value of the string doesn't |
| 2110 | * change if an error is thrown. |
| 2111 | */ |
| 2112 | _GLIBCXX20_CONSTEXPRconstexpr |
| 2113 | basic_string& |
| 2114 | erase(size_type __pos = 0, size_type __n = npos) |
| 2115 | { |
| 2116 | _M_check(__pos, "basic_string::erase"); |
| 2117 | if (__n == npos) |
| 2118 | this->_M_set_length(__pos); |
| 2119 | else if (__n != 0) |
| 2120 | this->_M_erase(__pos, _M_limit(__pos, __n)); |
| 2121 | return *this; |
| 2122 | } |
| 2123 | |
| 2124 | /** |
| 2125 | * @brief Remove one character. |
| 2126 | * @param __position Iterator referencing the character to remove. |
| 2127 | * @return iterator referencing same location after removal. |
| 2128 | * |
| 2129 | * Removes the character at @a __position from this string. The value |
| 2130 | * of the string doesn't change if an error is thrown. |
| 2131 | */ |
| 2132 | _GLIBCXX20_CONSTEXPRconstexpr |
| 2133 | iterator |
| 2134 | erase(__const_iterator __position) |
| 2135 | { |
| 2136 | _GLIBCXX_DEBUG_PEDASSERT(__position >= begin() |
| 2137 | && __position < end()); |
| 2138 | const size_type __pos = __position - begin(); |
| 2139 | this->_M_erase(__pos, size_type(1)); |
| 2140 | return iterator(_M_data() + __pos); |
| 2141 | } |
| 2142 | |
| 2143 | /** |
| 2144 | * @brief Remove a range of characters. |
| 2145 | * @param __first Iterator referencing the first character to remove. |
| 2146 | * @param __last Iterator referencing the end of the range. |
| 2147 | * @return Iterator referencing location of first after removal. |
| 2148 | * |
| 2149 | * Removes the characters in the range [first,last) from this string. |
| 2150 | * The value of the string doesn't change if an error is thrown. |
| 2151 | */ |
| 2152 | _GLIBCXX20_CONSTEXPRconstexpr |
| 2153 | iterator |
| 2154 | erase(__const_iterator __first, __const_iterator __last) |
| 2155 | { |
| 2156 | _GLIBCXX_DEBUG_PEDASSERT(__first >= begin() && __first <= __last |
| 2157 | && __last <= end()); |
| 2158 | const size_type __pos = __first - begin(); |
| 2159 | if (__last == end()) |
| 2160 | this->_M_set_length(__pos); |
| 2161 | else |
| 2162 | this->_M_erase(__pos, __last - __first); |
| 2163 | return iterator(this->_M_data() + __pos); |
| 2164 | } |
| 2165 | |
| 2166 | #if __cplusplus202002L >= 201103L |
| 2167 | /** |
| 2168 | * @brief Remove the last character. |
| 2169 | * |
| 2170 | * The string must be non-empty. |
| 2171 | */ |
| 2172 | _GLIBCXX20_CONSTEXPRconstexpr |
| 2173 | void |
| 2174 | pop_back() noexcept |
| 2175 | { |
| 2176 | __glibcxx_assert(!empty())do { if (std::__is_constant_evaluated()) if (__builtin_expect (!bool(!empty()), false)) std::__glibcxx_assert_fail(); } while (false); |
| 2177 | _M_erase(size() - 1, 1); |
| 2178 | } |
| 2179 | #endif // C++11 |
| 2180 | |
| 2181 | /** |
| 2182 | * @brief Replace characters with value from another string. |
| 2183 | * @param __pos Index of first character to replace. |
| 2184 | * @param __n Number of characters to be replaced. |
| 2185 | * @param __str String to insert. |
| 2186 | * @return Reference to this string. |
| 2187 | * @throw std::out_of_range If @a pos is beyond the end of this |
| 2188 | * string. |
| 2189 | * @throw std::length_error If new length exceeds @c max_size(). |
| 2190 | * |
| 2191 | * Removes the characters in the range [__pos,__pos+__n) from |
| 2192 | * this string. In place, the value of @a __str is inserted. |
| 2193 | * If @a __pos is beyond end of string, out_of_range is thrown. |
| 2194 | * If the length of the result exceeds max_size(), length_error |
| 2195 | * is thrown. The value of the string doesn't change if an |
| 2196 | * error is thrown. |
| 2197 | */ |
| 2198 | _GLIBCXX20_CONSTEXPRconstexpr |
| 2199 | basic_string& |
| 2200 | replace(size_type __pos, size_type __n, const basic_string& __str) |
| 2201 | { return this->replace(__pos, __n, __str._M_data(), __str.size()); } |
| 2202 | |
| 2203 | /** |
| 2204 | * @brief Replace characters with value from another string. |
| 2205 | * @param __pos1 Index of first character to replace. |
| 2206 | * @param __n1 Number of characters to be replaced. |
| 2207 | * @param __str String to insert. |
| 2208 | * @param __pos2 Index of first character of str to use. |
| 2209 | * @param __n2 Number of characters from str to use. |
| 2210 | * @return Reference to this string. |
| 2211 | * @throw std::out_of_range If @a __pos1 > size() or @a __pos2 > |
| 2212 | * __str.size(). |
| 2213 | * @throw std::length_error If new length exceeds @c max_size(). |
| 2214 | * |
| 2215 | * Removes the characters in the range [__pos1,__pos1 + n) from this |
| 2216 | * string. In place, the value of @a __str is inserted. If @a __pos is |
| 2217 | * beyond end of string, out_of_range is thrown. If the length of the |
| 2218 | * result exceeds max_size(), length_error is thrown. The value of the |
| 2219 | * string doesn't change if an error is thrown. |
| 2220 | */ |
| 2221 | _GLIBCXX20_CONSTEXPRconstexpr |
| 2222 | basic_string& |
| 2223 | replace(size_type __pos1, size_type __n1, const basic_string& __str, |
| 2224 | size_type __pos2, size_type __n2 = npos) |
| 2225 | { return this->replace(__pos1, __n1, __str._M_data() |
| 2226 | + __str._M_check(__pos2, "basic_string::replace"), |
| 2227 | __str._M_limit(__pos2, __n2)); } |
| 2228 | |
| 2229 | /** |
| 2230 | * @brief Replace characters with value of a C substring. |
| 2231 | * @param __pos Index of first character to replace. |
| 2232 | * @param __n1 Number of characters to be replaced. |
| 2233 | * @param __s C string to insert. |
| 2234 | * @param __n2 Number of characters from @a s to use. |
| 2235 | * @return Reference to this string. |
| 2236 | * @throw std::out_of_range If @a pos1 > size(). |
| 2237 | * @throw std::length_error If new length exceeds @c max_size(). |
| 2238 | * |
| 2239 | * Removes the characters in the range [__pos,__pos + __n1) |
| 2240 | * from this string. In place, the first @a __n2 characters of |
| 2241 | * @a __s are inserted, or all of @a __s if @a __n2 is too large. If |
| 2242 | * @a __pos is beyond end of string, out_of_range is thrown. If |
| 2243 | * the length of result exceeds max_size(), length_error is |
| 2244 | * thrown. The value of the string doesn't change if an error |
| 2245 | * is thrown. |
| 2246 | */ |
| 2247 | _GLIBCXX20_CONSTEXPRconstexpr |
| 2248 | basic_string& |
| 2249 | replace(size_type __pos, size_type __n1, const _CharT* __s, |
| 2250 | size_type __n2) |
| 2251 | { |
| 2252 | __glibcxx_requires_string_len(__s, __n2); |
| 2253 | return _M_replace(_M_check(__pos, "basic_string::replace"), |
| 2254 | _M_limit(__pos, __n1), __s, __n2); |
| 2255 | } |
| 2256 | |
| 2257 | /** |
| 2258 | * @brief Replace characters with value of a C string. |
| 2259 | * @param __pos Index of first character to replace. |
| 2260 | * @param __n1 Number of characters to be replaced. |
| 2261 | * @param __s C string to insert. |
| 2262 | * @return Reference to this string. |
| 2263 | * @throw std::out_of_range If @a pos > size(). |
| 2264 | * @throw std::length_error If new length exceeds @c max_size(). |
| 2265 | * |
| 2266 | * Removes the characters in the range [__pos,__pos + __n1) |
| 2267 | * from this string. In place, the characters of @a __s are |
| 2268 | * inserted. If @a __pos is beyond end of string, out_of_range |
| 2269 | * is thrown. If the length of result exceeds max_size(), |
| 2270 | * length_error is thrown. The value of the string doesn't |
| 2271 | * change if an error is thrown. |
| 2272 | */ |
| 2273 | _GLIBCXX20_CONSTEXPRconstexpr |
| 2274 | basic_string& |
| 2275 | replace(size_type __pos, size_type __n1, const _CharT* __s) |
| 2276 | { |
| 2277 | __glibcxx_requires_string(__s); |
| 2278 | return this->replace(__pos, __n1, __s, traits_type::length(__s)); |
| 2279 | } |
| 2280 | |
| 2281 | /** |
| 2282 | * @brief Replace characters with multiple characters. |
| 2283 | * @param __pos Index of first character to replace. |
| 2284 | * @param __n1 Number of characters to be replaced. |
| 2285 | * @param __n2 Number of characters to insert. |
| 2286 | * @param __c Character to insert. |
| 2287 | * @return Reference to this string. |
| 2288 | * @throw std::out_of_range If @a __pos > size(). |
| 2289 | * @throw std::length_error If new length exceeds @c max_size(). |
| 2290 | * |
| 2291 | * Removes the characters in the range [pos,pos + n1) from this |
| 2292 | * string. In place, @a __n2 copies of @a __c are inserted. |
| 2293 | * If @a __pos is beyond end of string, out_of_range is thrown. |
| 2294 | * If the length of result exceeds max_size(), length_error is |
| 2295 | * thrown. The value of the string doesn't change if an error |
| 2296 | * is thrown. |
| 2297 | */ |
| 2298 | _GLIBCXX20_CONSTEXPRconstexpr |
| 2299 | basic_string& |
| 2300 | replace(size_type __pos, size_type __n1, size_type __n2, _CharT __c) |
| 2301 | { return _M_replace_aux(_M_check(__pos, "basic_string::replace"), |
| 2302 | _M_limit(__pos, __n1), __n2, __c); } |
| 2303 | |
| 2304 | /** |
| 2305 | * @brief Replace range of characters with string. |
| 2306 | * @param __i1 Iterator referencing start of range to replace. |
| 2307 | * @param __i2 Iterator referencing end of range to replace. |
| 2308 | * @param __str String value to insert. |
| 2309 | * @return Reference to this string. |
| 2310 | * @throw std::length_error If new length exceeds @c max_size(). |
| 2311 | * |
| 2312 | * Removes the characters in the range [__i1,__i2). In place, |
| 2313 | * the value of @a __str is inserted. If the length of result |
| 2314 | * exceeds max_size(), length_error is thrown. The value of |
| 2315 | * the string doesn't change if an error is thrown. |
| 2316 | */ |
| 2317 | _GLIBCXX20_CONSTEXPRconstexpr |
| 2318 | basic_string& |
| 2319 | replace(__const_iterator __i1, __const_iterator __i2, |
| 2320 | const basic_string& __str) |
| 2321 | { return this->replace(__i1, __i2, __str._M_data(), __str.size()); } |
| 2322 | |
| 2323 | /** |
| 2324 | * @brief Replace range of characters with C substring. |
| 2325 | * @param __i1 Iterator referencing start of range to replace. |
| 2326 | * @param __i2 Iterator referencing end of range to replace. |
| 2327 | * @param __s C string value to insert. |
| 2328 | * @param __n Number of characters from s to insert. |
| 2329 | * @return Reference to this string. |
| 2330 | * @throw std::length_error If new length exceeds @c max_size(). |
| 2331 | * |
| 2332 | * Removes the characters in the range [__i1,__i2). In place, |
| 2333 | * the first @a __n characters of @a __s are inserted. If the |
| 2334 | * length of result exceeds max_size(), length_error is thrown. |
| 2335 | * The value of the string doesn't change if an error is |
| 2336 | * thrown. |
| 2337 | */ |
| 2338 | _GLIBCXX20_CONSTEXPRconstexpr |
| 2339 | basic_string& |
| 2340 | replace(__const_iterator __i1, __const_iterator __i2, |
| 2341 | const _CharT* __s, size_type __n) |
| 2342 | { |
| 2343 | _GLIBCXX_DEBUG_PEDASSERT(begin() <= __i1 && __i1 <= __i2 |
| 2344 | && __i2 <= end()); |
| 2345 | return this->replace(__i1 - begin(), __i2 - __i1, __s, __n); |
| 2346 | } |
| 2347 | |
| 2348 | /** |
| 2349 | * @brief Replace range of characters with C string. |
| 2350 | * @param __i1 Iterator referencing start of range to replace. |
| 2351 | * @param __i2 Iterator referencing end of range to replace. |
| 2352 | * @param __s C string value to insert. |
| 2353 | * @return Reference to this string. |
| 2354 | * @throw std::length_error If new length exceeds @c max_size(). |
| 2355 | * |
| 2356 | * Removes the characters in the range [__i1,__i2). In place, |
| 2357 | * the characters of @a __s are inserted. If the length of |
| 2358 | * result exceeds max_size(), length_error is thrown. The |
| 2359 | * value of the string doesn't change if an error is thrown. |
| 2360 | */ |
| 2361 | _GLIBCXX20_CONSTEXPRconstexpr |
| 2362 | basic_string& |
| 2363 | replace(__const_iterator __i1, __const_iterator __i2, const _CharT* __s) |
| 2364 | { |
| 2365 | __glibcxx_requires_string(__s); |
| 2366 | return this->replace(__i1, __i2, __s, traits_type::length(__s)); |
| 2367 | } |
| 2368 | |
| 2369 | /** |
| 2370 | * @brief Replace range of characters with multiple characters |
| 2371 | * @param __i1 Iterator referencing start of range to replace. |
| 2372 | * @param __i2 Iterator referencing end of range to replace. |
| 2373 | * @param __n Number of characters to insert. |
| 2374 | * @param __c Character to insert. |
| 2375 | * @return Reference to this string. |
| 2376 | * @throw std::length_error If new length exceeds @c max_size(). |
| 2377 | * |
| 2378 | * Removes the characters in the range [__i1,__i2). In place, |
| 2379 | * @a __n copies of @a __c are inserted. If the length of |
| 2380 | * result exceeds max_size(), length_error is thrown. The |
| 2381 | * value of the string doesn't change if an error is thrown. |
| 2382 | */ |
| 2383 | _GLIBCXX20_CONSTEXPRconstexpr |
| 2384 | basic_string& |
| 2385 | replace(__const_iterator __i1, __const_iterator __i2, size_type __n, |
| 2386 | _CharT __c) |
| 2387 | { |
| 2388 | _GLIBCXX_DEBUG_PEDASSERT(begin() <= __i1 && __i1 <= __i2 |
| 2389 | && __i2 <= end()); |
| 2390 | return _M_replace_aux(__i1 - begin(), __i2 - __i1, __n, __c); |
| 2391 | } |
| 2392 | |
| 2393 | /** |
| 2394 | * @brief Replace range of characters with range. |
| 2395 | * @param __i1 Iterator referencing start of range to replace. |
| 2396 | * @param __i2 Iterator referencing end of range to replace. |
| 2397 | * @param __k1 Iterator referencing start of range to insert. |
| 2398 | * @param __k2 Iterator referencing end of range to insert. |
| 2399 | * @return Reference to this string. |
| 2400 | * @throw std::length_error If new length exceeds @c max_size(). |
| 2401 | * |
| 2402 | * Removes the characters in the range [__i1,__i2). In place, |
| 2403 | * characters in the range [__k1,__k2) are inserted. If the |
| 2404 | * length of result exceeds max_size(), length_error is thrown. |
| 2405 | * The value of the string doesn't change if an error is |
| 2406 | * thrown. |
| 2407 | */ |
| 2408 | #if __cplusplus202002L >= 201103L |
| 2409 | template<class _InputIterator, |
| 2410 | typename = std::_RequireInputIter<_InputIterator>> |
| 2411 | _GLIBCXX20_CONSTEXPRconstexpr |
| 2412 | basic_string& |
| 2413 | replace(const_iterator __i1, const_iterator __i2, |
| 2414 | _InputIterator __k1, _InputIterator __k2) |
| 2415 | { |
| 2416 | _GLIBCXX_DEBUG_PEDASSERT(begin() <= __i1 && __i1 <= __i2 |
| 2417 | && __i2 <= end()); |
| 2418 | __glibcxx_requires_valid_range(__k1, __k2); |
| 2419 | return this->_M_replace_dispatch(__i1, __i2, __k1, __k2, |
| 2420 | std::__false_type()); |
| 2421 | } |
| 2422 | #else |
| 2423 | template<class _InputIterator> |
| 2424 | #ifdef _GLIBCXX_DISAMBIGUATE_REPLACE_INST |
| 2425 | typename __enable_if_not_native_iterator<_InputIterator>::__type |
| 2426 | #else |
| 2427 | basic_string& |
| 2428 | #endif |
| 2429 | replace(iterator __i1, iterator __i2, |
| 2430 | _InputIterator __k1, _InputIterator __k2) |
| 2431 | { |
| 2432 | _GLIBCXX_DEBUG_PEDASSERT(begin() <= __i1 && __i1 <= __i2 |
| 2433 | && __i2 <= end()); |
| 2434 | __glibcxx_requires_valid_range(__k1, __k2); |
| 2435 | typedef typename std::__is_integer<_InputIterator>::__type _Integral; |
| 2436 | return _M_replace_dispatch(__i1, __i2, __k1, __k2, _Integral()); |
| 2437 | } |
| 2438 | #endif |
| 2439 | |
| 2440 | // Specializations for the common case of pointer and iterator: |
| 2441 | // useful to avoid the overhead of temporary buffering in _M_replace. |
| 2442 | _GLIBCXX20_CONSTEXPRconstexpr |
| 2443 | basic_string& |
| 2444 | replace(__const_iterator __i1, __const_iterator __i2, |
| 2445 | _CharT* __k1, _CharT* __k2) |
| 2446 | { |
| 2447 | _GLIBCXX_DEBUG_PEDASSERT(begin() <= __i1 && __i1 <= __i2 |
| 2448 | && __i2 <= end()); |
| 2449 | __glibcxx_requires_valid_range(__k1, __k2); |
| 2450 | return this->replace(__i1 - begin(), __i2 - __i1, |
| 2451 | __k1, __k2 - __k1); |
| 2452 | } |
| 2453 | |
| 2454 | _GLIBCXX20_CONSTEXPRconstexpr |
| 2455 | basic_string& |
| 2456 | replace(__const_iterator __i1, __const_iterator __i2, |
| 2457 | const _CharT* __k1, const _CharT* __k2) |
| 2458 | { |
| 2459 | _GLIBCXX_DEBUG_PEDASSERT(begin() <= __i1 && __i1 <= __i2 |
| 2460 | && __i2 <= end()); |
| 2461 | __glibcxx_requires_valid_range(__k1, __k2); |
| 2462 | return this->replace(__i1 - begin(), __i2 - __i1, |
| 2463 | __k1, __k2 - __k1); |
| 2464 | } |
| 2465 | |
| 2466 | _GLIBCXX20_CONSTEXPRconstexpr |
| 2467 | basic_string& |
| 2468 | replace(__const_iterator __i1, __const_iterator __i2, |
| 2469 | iterator __k1, iterator __k2) |
| 2470 | { |
| 2471 | _GLIBCXX_DEBUG_PEDASSERT(begin() <= __i1 && __i1 <= __i2 |
| 2472 | && __i2 <= end()); |
| 2473 | __glibcxx_requires_valid_range(__k1, __k2); |
| 2474 | return this->replace(__i1 - begin(), __i2 - __i1, |
| 2475 | __k1.base(), __k2 - __k1); |
| 2476 | } |
| 2477 | |
| 2478 | _GLIBCXX20_CONSTEXPRconstexpr |
| 2479 | basic_string& |
| 2480 | replace(__const_iterator __i1, __const_iterator __i2, |
| 2481 | const_iterator __k1, const_iterator __k2) |
| 2482 | { |
| 2483 | _GLIBCXX_DEBUG_PEDASSERT(begin() <= __i1 && __i1 <= __i2 |
| 2484 | && __i2 <= end()); |
| 2485 | __glibcxx_requires_valid_range(__k1, __k2); |
| 2486 | return this->replace(__i1 - begin(), __i2 - __i1, |
| 2487 | __k1.base(), __k2 - __k1); |
| 2488 | } |
| 2489 | |
| 2490 | #if __cplusplus202002L >= 201103L |
| 2491 | /** |
| 2492 | * @brief Replace range of characters with initializer_list. |
| 2493 | * @param __i1 Iterator referencing start of range to replace. |
| 2494 | * @param __i2 Iterator referencing end of range to replace. |
| 2495 | * @param __l The initializer_list of characters to insert. |
| 2496 | * @return Reference to this string. |
| 2497 | * @throw std::length_error If new length exceeds @c max_size(). |
| 2498 | * |
| 2499 | * Removes the characters in the range [__i1,__i2). In place, |
| 2500 | * characters in the range [__k1,__k2) are inserted. If the |
| 2501 | * length of result exceeds max_size(), length_error is thrown. |
| 2502 | * The value of the string doesn't change if an error is |
| 2503 | * thrown. |
| 2504 | */ |
| 2505 | _GLIBCXX20_CONSTEXPRconstexpr |
| 2506 | basic_string& replace(const_iterator __i1, const_iterator __i2, |
| 2507 | initializer_list<_CharT> __l) |
| 2508 | { return this->replace(__i1, __i2, __l.begin(), __l.size()); } |
| 2509 | #endif // C++11 |
| 2510 | |
| 2511 | #if __cplusplus202002L >= 201703L |
| 2512 | /** |
| 2513 | * @brief Replace range of characters with string_view. |
| 2514 | * @param __pos The position to replace at. |
| 2515 | * @param __n The number of characters to replace. |
| 2516 | * @param __svt The object convertible to string_view to insert. |
| 2517 | * @return Reference to this string. |
| 2518 | */ |
| 2519 | template<typename _Tp> |
| 2520 | _GLIBCXX20_CONSTEXPRconstexpr |
| 2521 | _If_sv<_Tp, basic_string&> |
| 2522 | replace(size_type __pos, size_type __n, const _Tp& __svt) |
| 2523 | { |
| 2524 | __sv_type __sv = __svt; |
| 2525 | return this->replace(__pos, __n, __sv.data(), __sv.size()); |
| 2526 | } |
| 2527 | |
| 2528 | /** |
| 2529 | * @brief Replace range of characters with string_view. |
| 2530 | * @param __pos1 The position to replace at. |
| 2531 | * @param __n1 The number of characters to replace. |
| 2532 | * @param __svt The object convertible to string_view to insert from. |
| 2533 | * @param __pos2 The position in the string_view to insert from. |
| 2534 | * @param __n2 The number of characters to insert. |
| 2535 | * @return Reference to this string. |
| 2536 | */ |
| 2537 | template<typename _Tp> |
| 2538 | _GLIBCXX20_CONSTEXPRconstexpr |
| 2539 | _If_sv<_Tp, basic_string&> |
| 2540 | replace(size_type __pos1, size_type __n1, const _Tp& __svt, |
| 2541 | size_type __pos2, size_type __n2 = npos) |
| 2542 | { |
| 2543 | __sv_type __sv = __svt; |
| 2544 | return this->replace(__pos1, __n1, |
| 2545 | __sv.data() |
| 2546 | + std::__sv_check(__sv.size(), __pos2, "basic_string::replace"), |
| 2547 | std::__sv_limit(__sv.size(), __pos2, __n2)); |
| 2548 | } |
| 2549 | |
| 2550 | /** |
| 2551 | * @brief Replace range of characters with string_view. |
| 2552 | * @param __i1 An iterator referencing the start position |
| 2553 | to replace at. |
| 2554 | * @param __i2 An iterator referencing the end position |
| 2555 | for the replace. |
| 2556 | * @param __svt The object convertible to string_view to insert from. |
| 2557 | * @return Reference to this string. |
| 2558 | */ |
| 2559 | template<typename _Tp> |
| 2560 | _GLIBCXX20_CONSTEXPRconstexpr |
| 2561 | _If_sv<_Tp, basic_string&> |
| 2562 | replace(const_iterator __i1, const_iterator __i2, const _Tp& __svt) |
| 2563 | { |
| 2564 | __sv_type __sv = __svt; |
| 2565 | return this->replace(__i1 - begin(), __i2 - __i1, __sv); |
| 2566 | } |
| 2567 | #endif // C++17 |
| 2568 | |
| 2569 | private: |
| 2570 | template<class _Integer> |
| 2571 | _GLIBCXX20_CONSTEXPRconstexpr |
| 2572 | basic_string& |
| 2573 | _M_replace_dispatch(const_iterator __i1, const_iterator __i2, |
| 2574 | _Integer __n, _Integer __val, __true_type) |
| 2575 | { return _M_replace_aux(__i1 - begin(), __i2 - __i1, __n, __val); } |
| 2576 | |
| 2577 | template<class _InputIterator> |
| 2578 | _GLIBCXX20_CONSTEXPRconstexpr |
| 2579 | basic_string& |
| 2580 | _M_replace_dispatch(const_iterator __i1, const_iterator __i2, |
| 2581 | _InputIterator __k1, _InputIterator __k2, |
| 2582 | __false_type); |
| 2583 | |
| 2584 | _GLIBCXX20_CONSTEXPRconstexpr |
| 2585 | basic_string& |
| 2586 | _M_replace_aux(size_type __pos1, size_type __n1, size_type __n2, |
| 2587 | _CharT __c); |
| 2588 | |
| 2589 | __attribute__((__noinline__, __noclone__, __cold__)) void |
| 2590 | _M_replace_cold(pointer __p, size_type __len1, const _CharT* __s, |
| 2591 | const size_type __len2, const size_type __how_much); |
| 2592 | |
| 2593 | _GLIBCXX20_CONSTEXPRconstexpr |
| 2594 | basic_string& |
| 2595 | _M_replace(size_type __pos, size_type __len1, const _CharT* __s, |
| 2596 | const size_type __len2); |
| 2597 | |
| 2598 | _GLIBCXX20_CONSTEXPRconstexpr |
| 2599 | basic_string& |
| 2600 | _M_append(const _CharT* __s, size_type __n); |
| 2601 | |
| 2602 | public: |
| 2603 | |
| 2604 | /** |
| 2605 | * @brief Copy substring into C string. |
| 2606 | * @param __s C string to copy value into. |
| 2607 | * @param __n Number of characters to copy. |
| 2608 | * @param __pos Index of first character to copy. |
| 2609 | * @return Number of characters actually copied |
| 2610 | * @throw std::out_of_range If __pos > size(). |
| 2611 | * |
| 2612 | * Copies up to @a __n characters starting at @a __pos into the |
| 2613 | * C string @a __s. If @a __pos is %greater than size(), |
| 2614 | * out_of_range is thrown. |
| 2615 | */ |
| 2616 | _GLIBCXX20_CONSTEXPRconstexpr |
| 2617 | size_type |
| 2618 | copy(_CharT* __s, size_type __n, size_type __pos = 0) const; |
| 2619 | |
| 2620 | /** |
| 2621 | * @brief Swap contents with another string. |
| 2622 | * @param __s String to swap with. |
| 2623 | * |
| 2624 | * Exchanges the contents of this string with that of @a __s in constant |
| 2625 | * time. |
| 2626 | */ |
| 2627 | _GLIBCXX20_CONSTEXPRconstexpr |
| 2628 | void |
| 2629 | swap(basic_string& __s) _GLIBCXX_NOEXCEPTnoexcept; |
| 2630 | |
| 2631 | // String operations: |
| 2632 | /** |
| 2633 | * @brief Return const pointer to null-terminated contents. |
| 2634 | * |
| 2635 | * This is a handle to internal data. Do not modify or dire things may |
| 2636 | * happen. |
| 2637 | */ |
| 2638 | _GLIBCXX_NODISCARD[[__nodiscard__]] _GLIBCXX20_CONSTEXPRconstexpr |
| 2639 | const _CharT* |
| 2640 | c_str() const _GLIBCXX_NOEXCEPTnoexcept |
| 2641 | { return _M_data(); } |
| 2642 | |
| 2643 | /** |
| 2644 | * @brief Return const pointer to contents. |
| 2645 | * |
| 2646 | * This is a pointer to internal data. It is undefined to modify |
| 2647 | * the contents through the returned pointer. To get a pointer that |
| 2648 | * allows modifying the contents use @c &str[0] instead, |
| 2649 | * (or in C++17 the non-const @c str.data() overload). |
| 2650 | */ |
| 2651 | _GLIBCXX_NODISCARD[[__nodiscard__]] _GLIBCXX20_CONSTEXPRconstexpr |
| 2652 | const _CharT* |
| 2653 | data() const _GLIBCXX_NOEXCEPTnoexcept |
| 2654 | { return _M_data(); } |
| 2655 | |
| 2656 | #if __cplusplus202002L >= 201703L |
| 2657 | /** |
| 2658 | * @brief Return non-const pointer to contents. |
| 2659 | * |
| 2660 | * This is a pointer to the character sequence held by the string. |
| 2661 | * Modifying the characters in the sequence is allowed. |
| 2662 | */ |
| 2663 | _GLIBCXX_NODISCARD[[__nodiscard__]] _GLIBCXX20_CONSTEXPRconstexpr |
| 2664 | _CharT* |
| 2665 | data() noexcept |
| 2666 | { return _M_data(); } |
| 2667 | #endif |
| 2668 | |
| 2669 | /** |
| 2670 | * @brief Return copy of allocator used to construct this string. |
| 2671 | */ |
| 2672 | _GLIBCXX_NODISCARD[[__nodiscard__]] _GLIBCXX20_CONSTEXPRconstexpr |
| 2673 | allocator_type |
| 2674 | get_allocator() const _GLIBCXX_NOEXCEPTnoexcept |
| 2675 | { return _M_get_allocator(); } |
| 2676 | |
| 2677 | /** |
| 2678 | * @brief Find position of a C substring. |
| 2679 | * @param __s C string to locate. |
| 2680 | * @param __pos Index of character to search from. |
| 2681 | * @param __n Number of characters from @a s to search for. |
| 2682 | * @return Index of start of first occurrence. |
| 2683 | * |
| 2684 | * Starting from @a __pos, searches forward for the first @a |
| 2685 | * __n characters in @a __s within this string. If found, |
| 2686 | * returns the index where it begins. If not found, returns |
| 2687 | * npos. |
| 2688 | */ |
| 2689 | _GLIBCXX_NODISCARD[[__nodiscard__]] _GLIBCXX20_CONSTEXPRconstexpr |
| 2690 | size_type |
| 2691 | find(const _CharT* __s, size_type __pos, size_type __n) const |
| 2692 | _GLIBCXX_NOEXCEPTnoexcept; |
| 2693 | |
| 2694 | /** |
| 2695 | * @brief Find position of a string. |
| 2696 | * @param __str String to locate. |
| 2697 | * @param __pos Index of character to search from (default 0). |
| 2698 | * @return Index of start of first occurrence. |
| 2699 | * |
| 2700 | * Starting from @a __pos, searches forward for value of @a __str within |
| 2701 | * this string. If found, returns the index where it begins. If not |
| 2702 | * found, returns npos. |
| 2703 | */ |
| 2704 | _GLIBCXX_NODISCARD[[__nodiscard__]] _GLIBCXX20_CONSTEXPRconstexpr |
| 2705 | size_type |
| 2706 | find(const basic_string& __str, size_type __pos = 0) const |
| 2707 | _GLIBCXX_NOEXCEPTnoexcept |
| 2708 | { return this->find(__str.data(), __pos, __str.size()); } |
| 2709 | |
| 2710 | #if __cplusplus202002L >= 201703L |
| 2711 | /** |
| 2712 | * @brief Find position of a string_view. |
| 2713 | * @param __svt The object convertible to string_view to locate. |
| 2714 | * @param __pos Index of character to search from (default 0). |
| 2715 | * @return Index of start of first occurrence. |
| 2716 | */ |
| 2717 | template<typename _Tp> |
| 2718 | _GLIBCXX_NODISCARD[[__nodiscard__]] _GLIBCXX20_CONSTEXPRconstexpr |
| 2719 | _If_sv<_Tp, size_type> |
| 2720 | find(const _Tp& __svt, size_type __pos = 0) const |
| 2721 | noexcept(is_same<_Tp, __sv_type>::value) |
| 2722 | { |
| 2723 | __sv_type __sv = __svt; |
| 2724 | return this->find(__sv.data(), __pos, __sv.size()); |
| 2725 | } |
| 2726 | #endif // C++17 |
| 2727 | |
| 2728 | /** |
| 2729 | * @brief Find position of a C string. |
| 2730 | * @param __s C string to locate. |
| 2731 | * @param __pos Index of character to search from (default 0). |
| 2732 | * @return Index of start of first occurrence. |
| 2733 | * |
| 2734 | * Starting from @a __pos, searches forward for the value of @a |
| 2735 | * __s within this string. If found, returns the index where |
| 2736 | * it begins. If not found, returns npos. |
| 2737 | */ |
| 2738 | _GLIBCXX_NODISCARD[[__nodiscard__]] _GLIBCXX20_CONSTEXPRconstexpr |
| 2739 | size_type |
| 2740 | find(const _CharT* __s, size_type __pos = 0) const _GLIBCXX_NOEXCEPTnoexcept |
| 2741 | { |
| 2742 | __glibcxx_requires_string(__s); |
| 2743 | return this->find(__s, __pos, traits_type::length(__s)); |
| 2744 | } |
| 2745 | |
| 2746 | /** |
| 2747 | * @brief Find position of a character. |
| 2748 | * @param __c Character to locate. |
| 2749 | * @param __pos Index of character to search from (default 0). |
| 2750 | * @return Index of first occurrence. |
| 2751 | * |
| 2752 | * Starting from @a __pos, searches forward for @a __c within |
| 2753 | * this string. If found, returns the index where it was |
| 2754 | * found. If not found, returns npos. |
| 2755 | */ |
| 2756 | _GLIBCXX_NODISCARD[[__nodiscard__]] _GLIBCXX20_CONSTEXPRconstexpr |
| 2757 | size_type |
| 2758 | find(_CharT __c, size_type __pos = 0) const _GLIBCXX_NOEXCEPTnoexcept; |
| 2759 | |
| 2760 | /** |
| 2761 | * @brief Find last position of a string. |
| 2762 | * @param __str String to locate. |
| 2763 | * @param __pos Index of character to search back from (default end). |
| 2764 | * @return Index of start of last occurrence. |
| 2765 | * |
| 2766 | * Starting from @a __pos, searches backward for value of @a |
| 2767 | * __str within this string. If found, returns the index where |
| 2768 | * it begins. If not found, returns npos. |
| 2769 | */ |
| 2770 | _GLIBCXX_NODISCARD[[__nodiscard__]] _GLIBCXX20_CONSTEXPRconstexpr |
| 2771 | size_type |
| 2772 | rfind(const basic_string& __str, size_type __pos = npos) const |
| 2773 | _GLIBCXX_NOEXCEPTnoexcept |
| 2774 | { return this->rfind(__str.data(), __pos, __str.size()); } |
| 2775 | |
| 2776 | #if __cplusplus202002L >= 201703L |
| 2777 | /** |
| 2778 | * @brief Find last position of a string_view. |
| 2779 | * @param __svt The object convertible to string_view to locate. |
| 2780 | * @param __pos Index of character to search back from (default end). |
| 2781 | * @return Index of start of last occurrence. |
| 2782 | */ |
| 2783 | template<typename _Tp> |
| 2784 | _GLIBCXX_NODISCARD[[__nodiscard__]] _GLIBCXX20_CONSTEXPRconstexpr |
| 2785 | _If_sv<_Tp, size_type> |
| 2786 | rfind(const _Tp& __svt, size_type __pos = npos) const |
| 2787 | noexcept(is_same<_Tp, __sv_type>::value) |
| 2788 | { |
| 2789 | __sv_type __sv = __svt; |
| 2790 | return this->rfind(__sv.data(), __pos, __sv.size()); |
| 2791 | } |
| 2792 | #endif // C++17 |
| 2793 | |
| 2794 | /** |
| 2795 | * @brief Find last position of a C substring. |
| 2796 | * @param __s C string to locate. |
| 2797 | * @param __pos Index of character to search back from. |
| 2798 | * @param __n Number of characters from s to search for. |
| 2799 | * @return Index of start of last occurrence. |
| 2800 | * |
| 2801 | * Starting from @a __pos, searches backward for the first @a |
| 2802 | * __n characters in @a __s within this string. If found, |
| 2803 | * returns the index where it begins. If not found, returns |
| 2804 | * npos. |
| 2805 | */ |
| 2806 | _GLIBCXX_NODISCARD[[__nodiscard__]] _GLIBCXX20_CONSTEXPRconstexpr |
| 2807 | size_type |
| 2808 | rfind(const _CharT* __s, size_type __pos, size_type __n) const |
| 2809 | _GLIBCXX_NOEXCEPTnoexcept; |
| 2810 | |
| 2811 | /** |
| 2812 | * @brief Find last position of a C string. |
| 2813 | * @param __s C string to locate. |
| 2814 | * @param __pos Index of character to start search at (default end). |
| 2815 | * @return Index of start of last occurrence. |
| 2816 | * |
| 2817 | * Starting from @a __pos, searches backward for the value of |
| 2818 | * @a __s within this string. If found, returns the index |
| 2819 | * where it begins. If not found, returns npos. |
| 2820 | */ |
| 2821 | _GLIBCXX_NODISCARD[[__nodiscard__]] _GLIBCXX20_CONSTEXPRconstexpr |
| 2822 | size_type |
| 2823 | rfind(const _CharT* __s, size_type __pos = npos) const |
| 2824 | { |
| 2825 | __glibcxx_requires_string(__s); |
| 2826 | return this->rfind(__s, __pos, traits_type::length(__s)); |
| 2827 | } |
| 2828 | |
| 2829 | /** |
| 2830 | * @brief Find last position of a character. |
| 2831 | * @param __c Character to locate. |
| 2832 | * @param __pos Index of character to search back from (default end). |
| 2833 | * @return Index of last occurrence. |
| 2834 | * |
| 2835 | * Starting from @a __pos, searches backward for @a __c within |
| 2836 | * this string. If found, returns the index where it was |
| 2837 | * found. If not found, returns npos. |
| 2838 | */ |
| 2839 | _GLIBCXX_NODISCARD[[__nodiscard__]] _GLIBCXX20_CONSTEXPRconstexpr |
| 2840 | size_type |
| 2841 | rfind(_CharT __c, size_type __pos = npos) const _GLIBCXX_NOEXCEPTnoexcept; |
| 2842 | |
| 2843 | /** |
| 2844 | * @brief Find position of a character of string. |
| 2845 | * @param __str String containing characters to locate. |
| 2846 | * @param __pos Index of character to search from (default 0). |
| 2847 | * @return Index of first occurrence. |
| 2848 | * |
| 2849 | * Starting from @a __pos, searches forward for one of the |
| 2850 | * characters of @a __str within this string. If found, |
| 2851 | * returns the index where it was found. If not found, returns |
| 2852 | * npos. |
| 2853 | */ |
| 2854 | _GLIBCXX_NODISCARD[[__nodiscard__]] _GLIBCXX20_CONSTEXPRconstexpr |
| 2855 | size_type |
| 2856 | find_first_of(const basic_string& __str, size_type __pos = 0) const |
| 2857 | _GLIBCXX_NOEXCEPTnoexcept |
| 2858 | { return this->find_first_of(__str.data(), __pos, __str.size()); } |
| 2859 | |
| 2860 | #if __cplusplus202002L >= 201703L |
| 2861 | /** |
| 2862 | * @brief Find position of a character of a string_view. |
| 2863 | * @param __svt An object convertible to string_view containing |
| 2864 | * characters to locate. |
| 2865 | * @param __pos Index of character to search from (default 0). |
| 2866 | * @return Index of first occurrence. |
| 2867 | */ |
| 2868 | template<typename _Tp> |
| 2869 | _GLIBCXX_NODISCARD[[__nodiscard__]] _GLIBCXX20_CONSTEXPRconstexpr |
| 2870 | _If_sv<_Tp, size_type> |
| 2871 | find_first_of(const _Tp& __svt, size_type __pos = 0) const |
| 2872 | noexcept(is_same<_Tp, __sv_type>::value) |
| 2873 | { |
| 2874 | __sv_type __sv = __svt; |
| 2875 | return this->find_first_of(__sv.data(), __pos, __sv.size()); |
| 2876 | } |
| 2877 | #endif // C++17 |
| 2878 | |
| 2879 | /** |
| 2880 | * @brief Find position of a character of C substring. |
| 2881 | * @param __s String containing characters to locate. |
| 2882 | * @param __pos Index of character to search from. |
| 2883 | * @param __n Number of characters from s to search for. |
| 2884 | * @return Index of first occurrence. |
| 2885 | * |
| 2886 | * Starting from @a __pos, searches forward for one of the |
| 2887 | * first @a __n characters of @a __s within this string. If |
| 2888 | * found, returns the index where it was found. If not found, |
| 2889 | * returns npos. |
| 2890 | */ |
| 2891 | _GLIBCXX_NODISCARD[[__nodiscard__]] _GLIBCXX20_CONSTEXPRconstexpr |
| 2892 | size_type |
| 2893 | find_first_of(const _CharT* __s, size_type __pos, size_type __n) const |
| 2894 | _GLIBCXX_NOEXCEPTnoexcept; |
| 2895 | |
| 2896 | /** |
| 2897 | * @brief Find position of a character of C string. |
| 2898 | * @param __s String containing characters to locate. |
| 2899 | * @param __pos Index of character to search from (default 0). |
| 2900 | * @return Index of first occurrence. |
| 2901 | * |
| 2902 | * Starting from @a __pos, searches forward for one of the |
| 2903 | * characters of @a __s within this string. If found, returns |
| 2904 | * the index where it was found. If not found, returns npos. |
| 2905 | */ |
| 2906 | _GLIBCXX_NODISCARD[[__nodiscard__]] _GLIBCXX20_CONSTEXPRconstexpr |
| 2907 | size_type |
| 2908 | find_first_of(const _CharT* __s, size_type __pos = 0) const |
| 2909 | _GLIBCXX_NOEXCEPTnoexcept |
| 2910 | { |
| 2911 | __glibcxx_requires_string(__s); |
| 2912 | return this->find_first_of(__s, __pos, traits_type::length(__s)); |
| 2913 | } |
| 2914 | |
| 2915 | /** |
| 2916 | * @brief Find position of a character. |
| 2917 | * @param __c Character to locate. |
| 2918 | * @param __pos Index of character to search from (default 0). |
| 2919 | * @return Index of first occurrence. |
| 2920 | * |
| 2921 | * Starting from @a __pos, searches forward for the character |
| 2922 | * @a __c within this string. If found, returns the index |
| 2923 | * where it was found. If not found, returns npos. |
| 2924 | * |
| 2925 | * Note: equivalent to find(__c, __pos). |
| 2926 | */ |
| 2927 | _GLIBCXX_NODISCARD[[__nodiscard__]] _GLIBCXX20_CONSTEXPRconstexpr |
| 2928 | size_type |
| 2929 | find_first_of(_CharT __c, size_type __pos = 0) const _GLIBCXX_NOEXCEPTnoexcept |
| 2930 | { return this->find(__c, __pos); } |
| 2931 | |
| 2932 | /** |
| 2933 | * @brief Find last position of a character of string. |
| 2934 | * @param __str String containing characters to locate. |
| 2935 | * @param __pos Index of character to search back from (default end). |
| 2936 | * @return Index of last occurrence. |
| 2937 | * |
| 2938 | * Starting from @a __pos, searches backward for one of the |
| 2939 | * characters of @a __str within this string. If found, |
| 2940 | * returns the index where it was found. If not found, returns |
| 2941 | * npos. |
| 2942 | */ |
| 2943 | _GLIBCXX_NODISCARD[[__nodiscard__]] _GLIBCXX20_CONSTEXPRconstexpr |
| 2944 | size_type |
| 2945 | find_last_of(const basic_string& __str, size_type __pos = npos) const |
| 2946 | _GLIBCXX_NOEXCEPTnoexcept |
| 2947 | { return this->find_last_of(__str.data(), __pos, __str.size()); } |
| 2948 | |
| 2949 | #if __cplusplus202002L >= 201703L |
| 2950 | /** |
| 2951 | * @brief Find last position of a character of string. |
| 2952 | * @param __svt An object convertible to string_view containing |
| 2953 | * characters to locate. |
| 2954 | * @param __pos Index of character to search back from (default end). |
| 2955 | * @return Index of last occurrence. |
| 2956 | */ |
| 2957 | template<typename _Tp> |
| 2958 | _GLIBCXX_NODISCARD[[__nodiscard__]] _GLIBCXX20_CONSTEXPRconstexpr |
| 2959 | _If_sv<_Tp, size_type> |
| 2960 | find_last_of(const _Tp& __svt, size_type __pos = npos) const |
| 2961 | noexcept(is_same<_Tp, __sv_type>::value) |
| 2962 | { |
| 2963 | __sv_type __sv = __svt; |
| 2964 | return this->find_last_of(__sv.data(), __pos, __sv.size()); |
| 2965 | } |
| 2966 | #endif // C++17 |
| 2967 | |
| 2968 | /** |
| 2969 | * @brief Find last position of a character of C substring. |
| 2970 | * @param __s C string containing characters to locate. |
| 2971 | * @param __pos Index of character to search back from. |
| 2972 | * @param __n Number of characters from s to search for. |
| 2973 | * @return Index of last occurrence. |
| 2974 | * |
| 2975 | * Starting from @a __pos, searches backward for one of the |
| 2976 | * first @a __n characters of @a __s within this string. If |
| 2977 | * found, returns the index where it was found. If not found, |
| 2978 | * returns npos. |
| 2979 | */ |
| 2980 | _GLIBCXX_NODISCARD[[__nodiscard__]] _GLIBCXX20_CONSTEXPRconstexpr |
| 2981 | size_type |
| 2982 | find_last_of(const _CharT* __s, size_type __pos, size_type __n) const |
| 2983 | _GLIBCXX_NOEXCEPTnoexcept; |
| 2984 | |
| 2985 | /** |
| 2986 | * @brief Find last position of a character of C string. |
| 2987 | * @param __s C string containing characters to locate. |
| 2988 | * @param __pos Index of character to search back from (default end). |
| 2989 | * @return Index of last occurrence. |
| 2990 | * |
| 2991 | * Starting from @a __pos, searches backward for one of the |
| 2992 | * characters of @a __s within this string. If found, returns |
| 2993 | * the index where it was found. If not found, returns npos. |
| 2994 | */ |
| 2995 | _GLIBCXX_NODISCARD[[__nodiscard__]] _GLIBCXX20_CONSTEXPRconstexpr |
| 2996 | size_type |
| 2997 | find_last_of(const _CharT* __s, size_type __pos = npos) const |
| 2998 | _GLIBCXX_NOEXCEPTnoexcept |
| 2999 | { |
| 3000 | __glibcxx_requires_string(__s); |
| 3001 | return this->find_last_of(__s, __pos, traits_type::length(__s)); |
| 3002 | } |
| 3003 | |
| 3004 | /** |
| 3005 | * @brief Find last position of a character. |
| 3006 | * @param __c Character to locate. |
| 3007 | * @param __pos Index of character to search back from (default end). |
| 3008 | * @return Index of last occurrence. |
| 3009 | * |
| 3010 | * Starting from @a __pos, searches backward for @a __c within |
| 3011 | * this string. If found, returns the index where it was |
| 3012 | * found. If not found, returns npos. |
| 3013 | * |
| 3014 | * Note: equivalent to rfind(__c, __pos). |
| 3015 | */ |
| 3016 | _GLIBCXX_NODISCARD[[__nodiscard__]] _GLIBCXX20_CONSTEXPRconstexpr |
| 3017 | size_type |
| 3018 | find_last_of(_CharT __c, size_type __pos = npos) const _GLIBCXX_NOEXCEPTnoexcept |
| 3019 | { return this->rfind(__c, __pos); } |
| 3020 | |
| 3021 | /** |
| 3022 | * @brief Find position of a character not in string. |
| 3023 | * @param __str String containing characters to avoid. |
| 3024 | * @param __pos Index of character to search from (default 0). |
| 3025 | * @return Index of first occurrence. |
| 3026 | * |
| 3027 | * Starting from @a __pos, searches forward for a character not contained |
| 3028 | * in @a __str within this string. If found, returns the index where it |
| 3029 | * was found. If not found, returns npos. |
| 3030 | */ |
| 3031 | _GLIBCXX_NODISCARD[[__nodiscard__]] _GLIBCXX20_CONSTEXPRconstexpr |
| 3032 | size_type |
| 3033 | find_first_not_of(const basic_string& __str, size_type __pos = 0) const |
| 3034 | _GLIBCXX_NOEXCEPTnoexcept |
| 3035 | { return this->find_first_not_of(__str.data(), __pos, __str.size()); } |
| 3036 | |
| 3037 | #if __cplusplus202002L >= 201703L |
| 3038 | /** |
| 3039 | * @brief Find position of a character not in a string_view. |
| 3040 | * @param __svt A object convertible to string_view containing |
| 3041 | * characters to avoid. |
| 3042 | * @param __pos Index of character to search from (default 0). |
| 3043 | * @return Index of first occurrence. |
| 3044 | */ |
| 3045 | template<typename _Tp> |
| 3046 | _GLIBCXX_NODISCARD[[__nodiscard__]] _GLIBCXX20_CONSTEXPRconstexpr |
| 3047 | _If_sv<_Tp, size_type> |
| 3048 | find_first_not_of(const _Tp& __svt, size_type __pos = 0) const |
| 3049 | noexcept(is_same<_Tp, __sv_type>::value) |
| 3050 | { |
| 3051 | __sv_type __sv = __svt; |
| 3052 | return this->find_first_not_of(__sv.data(), __pos, __sv.size()); |
| 3053 | } |
| 3054 | #endif // C++17 |
| 3055 | |
| 3056 | /** |
| 3057 | * @brief Find position of a character not in C substring. |
| 3058 | * @param __s C string containing characters to avoid. |
| 3059 | * @param __pos Index of character to search from. |
| 3060 | * @param __n Number of characters from __s to consider. |
| 3061 | * @return Index of first occurrence. |
| 3062 | * |
| 3063 | * Starting from @a __pos, searches forward for a character not |
| 3064 | * contained in the first @a __n characters of @a __s within |
| 3065 | * this string. If found, returns the index where it was |
| 3066 | * found. If not found, returns npos. |
| 3067 | */ |
| 3068 | _GLIBCXX_NODISCARD[[__nodiscard__]] _GLIBCXX20_CONSTEXPRconstexpr |
| 3069 | size_type |
| 3070 | find_first_not_of(const _CharT* __s, size_type __pos, |
| 3071 | size_type __n) const _GLIBCXX_NOEXCEPTnoexcept; |
| 3072 | |
| 3073 | /** |
| 3074 | * @brief Find position of a character not in C string. |
| 3075 | * @param __s C string containing characters to avoid. |
| 3076 | * @param __pos Index of character to search from (default 0). |
| 3077 | * @return Index of first occurrence. |
| 3078 | * |
| 3079 | * Starting from @a __pos, searches forward for a character not |
| 3080 | * contained in @a __s within this string. If found, returns |
| 3081 | * the index where it was found. If not found, returns npos. |
| 3082 | */ |
| 3083 | _GLIBCXX_NODISCARD[[__nodiscard__]] _GLIBCXX20_CONSTEXPRconstexpr |
| 3084 | size_type |
| 3085 | find_first_not_of(const _CharT* __s, size_type __pos = 0) const |
| 3086 | _GLIBCXX_NOEXCEPTnoexcept |
| 3087 | { |
| 3088 | __glibcxx_requires_string(__s); |
| 3089 | return this->find_first_not_of(__s, __pos, traits_type::length(__s)); |
| 3090 | } |
| 3091 | |
| 3092 | /** |
| 3093 | * @brief Find position of a different character. |
| 3094 | * @param __c Character to avoid. |
| 3095 | * @param __pos Index of character to search from (default 0). |
| 3096 | * @return Index of first occurrence. |
| 3097 | * |
| 3098 | * Starting from @a __pos, searches forward for a character |
| 3099 | * other than @a __c within this string. If found, returns the |
| 3100 | * index where it was found. If not found, returns npos. |
| 3101 | */ |
| 3102 | _GLIBCXX_NODISCARD[[__nodiscard__]] _GLIBCXX20_CONSTEXPRconstexpr |
| 3103 | size_type |
| 3104 | find_first_not_of(_CharT __c, size_type __pos = 0) const |
| 3105 | _GLIBCXX_NOEXCEPTnoexcept; |
| 3106 | |
| 3107 | /** |
| 3108 | * @brief Find last position of a character not in string. |
| 3109 | * @param __str String containing characters to avoid. |
| 3110 | * @param __pos Index of character to search back from (default end). |
| 3111 | * @return Index of last occurrence. |
| 3112 | * |
| 3113 | * Starting from @a __pos, searches backward for a character |
| 3114 | * not contained in @a __str within this string. If found, |
| 3115 | * returns the index where it was found. If not found, returns |
| 3116 | * npos. |
| 3117 | */ |
| 3118 | _GLIBCXX_NODISCARD[[__nodiscard__]] _GLIBCXX20_CONSTEXPRconstexpr |
| 3119 | size_type |
| 3120 | find_last_not_of(const basic_string& __str, size_type __pos = npos) const |
| 3121 | _GLIBCXX_NOEXCEPTnoexcept |
| 3122 | { return this->find_last_not_of(__str.data(), __pos, __str.size()); } |
| 3123 | |
| 3124 | #if __cplusplus202002L >= 201703L |
| 3125 | /** |
| 3126 | * @brief Find last position of a character not in a string_view. |
| 3127 | * @param __svt An object convertible to string_view containing |
| 3128 | * characters to avoid. |
| 3129 | * @param __pos Index of character to search back from (default end). |
| 3130 | * @return Index of last occurrence. |
| 3131 | */ |
| 3132 | template<typename _Tp> |
| 3133 | _GLIBCXX_NODISCARD[[__nodiscard__]] _GLIBCXX20_CONSTEXPRconstexpr |
| 3134 | _If_sv<_Tp, size_type> |
| 3135 | find_last_not_of(const _Tp& __svt, size_type __pos = npos) const |
| 3136 | noexcept(is_same<_Tp, __sv_type>::value) |
| 3137 | { |
| 3138 | __sv_type __sv = __svt; |
| 3139 | return this->find_last_not_of(__sv.data(), __pos, __sv.size()); |
| 3140 | } |
| 3141 | #endif // C++17 |
| 3142 | |
| 3143 | /** |
| 3144 | * @brief Find last position of a character not in C substring. |
| 3145 | * @param __s C string containing characters to avoid. |
| 3146 | * @param __pos Index of character to search back from. |
| 3147 | * @param __n Number of characters from s to consider. |
| 3148 | * @return Index of last occurrence. |
| 3149 | * |
| 3150 | * Starting from @a __pos, searches backward for a character not |
| 3151 | * contained in the first @a __n characters of @a __s within this string. |
| 3152 | * If found, returns the index where it was found. If not found, |
| 3153 | * returns npos. |
| 3154 | */ |
| 3155 | _GLIBCXX_NODISCARD[[__nodiscard__]] _GLIBCXX20_CONSTEXPRconstexpr |
| 3156 | size_type |
| 3157 | find_last_not_of(const _CharT* __s, size_type __pos, |
| 3158 | size_type __n) const _GLIBCXX_NOEXCEPTnoexcept; |
| 3159 | /** |
| 3160 | * @brief Find last position of a character not in C string. |
| 3161 | * @param __s C string containing characters to avoid. |
| 3162 | * @param __pos Index of character to search back from (default end). |
| 3163 | * @return Index of last occurrence. |
| 3164 | * |
| 3165 | * Starting from @a __pos, searches backward for a character |
| 3166 | * not contained in @a __s within this string. If found, |
| 3167 | * returns the index where it was found. If not found, returns |
| 3168 | * npos. |
| 3169 | */ |
| 3170 | _GLIBCXX_NODISCARD[[__nodiscard__]] _GLIBCXX20_CONSTEXPRconstexpr |
| 3171 | size_type |
| 3172 | find_last_not_of(const _CharT* __s, size_type __pos = npos) const |
| 3173 | _GLIBCXX_NOEXCEPTnoexcept |
| 3174 | { |
| 3175 | __glibcxx_requires_string(__s); |
| 3176 | return this->find_last_not_of(__s, __pos, traits_type::length(__s)); |
| 3177 | } |
| 3178 | |
| 3179 | /** |
| 3180 | * @brief Find last position of a different character. |
| 3181 | * @param __c Character to avoid. |
| 3182 | * @param __pos Index of character to search back from (default end). |
| 3183 | * @return Index of last occurrence. |
| 3184 | * |
| 3185 | * Starting from @a __pos, searches backward for a character other than |
| 3186 | * @a __c within this string. If found, returns the index where it was |
| 3187 | * found. If not found, returns npos. |
| 3188 | */ |
| 3189 | _GLIBCXX_NODISCARD[[__nodiscard__]] _GLIBCXX20_CONSTEXPRconstexpr |
| 3190 | size_type |
| 3191 | find_last_not_of(_CharT __c, size_type __pos = npos) const |
| 3192 | _GLIBCXX_NOEXCEPTnoexcept; |
| 3193 | |
| 3194 | /** |
| 3195 | * @brief Get a substring. |
| 3196 | * @param __pos Index of first character (default 0). |
| 3197 | * @param __n Number of characters in substring (default remainder). |
| 3198 | * @return The new string. |
| 3199 | * @throw std::out_of_range If __pos > size(). |
| 3200 | * |
| 3201 | * Construct and return a new string using the @a __n |
| 3202 | * characters starting at @a __pos. If the string is too |
| 3203 | * short, use the remainder of the characters. If @a __pos is |
| 3204 | * beyond the end of the string, out_of_range is thrown. |
| 3205 | */ |
| 3206 | _GLIBCXX_NODISCARD[[__nodiscard__]] _GLIBCXX20_CONSTEXPRconstexpr |
| 3207 | basic_string |
| 3208 | substr(size_type __pos = 0, size_type __n = npos) const |
| 3209 | { return basic_string(*this, |
| 3210 | _M_check(__pos, "basic_string::substr"), __n); } |
| 3211 | |
| 3212 | /** |
| 3213 | * @brief Compare to a string. |
| 3214 | * @param __str String to compare against. |
| 3215 | * @return Integer < 0, 0, or > 0. |
| 3216 | * |
| 3217 | * Returns an integer < 0 if this string is ordered before @a |
| 3218 | * __str, 0 if their values are equivalent, or > 0 if this |
| 3219 | * string is ordered after @a __str. Determines the effective |
| 3220 | * length rlen of the strings to compare as the smallest of |
| 3221 | * size() and str.size(). The function then compares the two |
| 3222 | * strings by calling traits::compare(data(), str.data(),rlen). |
| 3223 | * If the result of the comparison is nonzero returns it, |
| 3224 | * otherwise the shorter one is ordered first. |
| 3225 | */ |
| 3226 | _GLIBCXX_NODISCARD[[__nodiscard__]] _GLIBCXX20_CONSTEXPRconstexpr |
| 3227 | int |
| 3228 | compare(const basic_string& __str) const |
| 3229 | { |
| 3230 | const size_type __size = this->size(); |
| 3231 | const size_type __osize = __str.size(); |
| 3232 | const size_type __len = std::min(__size, __osize); |
| 3233 | |
| 3234 | int __r = traits_type::compare(_M_data(), __str.data(), __len); |
| 3235 | if (!__r) |
| 3236 | __r = _S_compare(__size, __osize); |
| 3237 | return __r; |
| 3238 | } |
| 3239 | |
| 3240 | #if __cplusplus202002L >= 201703L |
| 3241 | /** |
| 3242 | * @brief Compare to a string_view. |
| 3243 | * @param __svt An object convertible to string_view to compare against. |
| 3244 | * @return Integer < 0, 0, or > 0. |
| 3245 | */ |
| 3246 | template<typename _Tp> |
| 3247 | _GLIBCXX_NODISCARD[[__nodiscard__]] _GLIBCXX20_CONSTEXPRconstexpr |
| 3248 | _If_sv<_Tp, int> |
| 3249 | compare(const _Tp& __svt) const |
| 3250 | noexcept(is_same<_Tp, __sv_type>::value) |
| 3251 | { |
| 3252 | __sv_type __sv = __svt; |
| 3253 | const size_type __size = this->size(); |
| 3254 | const size_type __osize = __sv.size(); |
| 3255 | const size_type __len = std::min(__size, __osize); |
| 3256 | |
| 3257 | int __r = traits_type::compare(_M_data(), __sv.data(), __len); |
| 3258 | if (!__r) |
| 3259 | __r = _S_compare(__size, __osize); |
| 3260 | return __r; |
| 3261 | } |
| 3262 | |
| 3263 | /** |
| 3264 | * @brief Compare to a string_view. |
| 3265 | * @param __pos A position in the string to start comparing from. |
| 3266 | * @param __n The number of characters to compare. |
| 3267 | * @param __svt An object convertible to string_view to compare |
| 3268 | * against. |
| 3269 | * @return Integer < 0, 0, or > 0. |
| 3270 | */ |
| 3271 | template<typename _Tp> |
| 3272 | _GLIBCXX_NODISCARD[[__nodiscard__]] _GLIBCXX20_CONSTEXPRconstexpr |
| 3273 | _If_sv<_Tp, int> |
| 3274 | compare(size_type __pos, size_type __n, const _Tp& __svt) const |
| 3275 | noexcept(is_same<_Tp, __sv_type>::value) |
| 3276 | { |
| 3277 | __sv_type __sv = __svt; |
| 3278 | return __sv_type(*this).substr(__pos, __n).compare(__sv); |
| 3279 | } |
| 3280 | |
| 3281 | /** |
| 3282 | * @brief Compare to a string_view. |
| 3283 | * @param __pos1 A position in the string to start comparing from. |
| 3284 | * @param __n1 The number of characters to compare. |
| 3285 | * @param __svt An object convertible to string_view to compare |
| 3286 | * against. |
| 3287 | * @param __pos2 A position in the string_view to start comparing from. |
| 3288 | * @param __n2 The number of characters to compare. |
| 3289 | * @return Integer < 0, 0, or > 0. |
| 3290 | */ |
| 3291 | template<typename _Tp> |
| 3292 | _GLIBCXX_NODISCARD[[__nodiscard__]] _GLIBCXX20_CONSTEXPRconstexpr |
| 3293 | _If_sv<_Tp, int> |
| 3294 | compare(size_type __pos1, size_type __n1, const _Tp& __svt, |
| 3295 | size_type __pos2, size_type __n2 = npos) const |
| 3296 | noexcept(is_same<_Tp, __sv_type>::value) |
| 3297 | { |
| 3298 | __sv_type __sv = __svt; |
| 3299 | return __sv_type(*this) |
| 3300 | .substr(__pos1, __n1).compare(__sv.substr(__pos2, __n2)); |
| 3301 | } |
| 3302 | #endif // C++17 |
| 3303 | |
| 3304 | /** |
| 3305 | * @brief Compare substring to a string. |
| 3306 | * @param __pos Index of first character of substring. |
| 3307 | * @param __n Number of characters in substring. |
| 3308 | * @param __str String to compare against. |
| 3309 | * @return Integer < 0, 0, or > 0. |
| 3310 | * |
| 3311 | * Form the substring of this string from the @a __n characters |
| 3312 | * starting at @a __pos. Returns an integer < 0 if the |
| 3313 | * substring is ordered before @a __str, 0 if their values are |
| 3314 | * equivalent, or > 0 if the substring is ordered after @a |
| 3315 | * __str. Determines the effective length rlen of the strings |
| 3316 | * to compare as the smallest of the length of the substring |
| 3317 | * and @a __str.size(). The function then compares the two |
| 3318 | * strings by calling |
| 3319 | * traits::compare(substring.data(),str.data(),rlen). If the |
| 3320 | * result of the comparison is nonzero returns it, otherwise |
| 3321 | * the shorter one is ordered first. |
| 3322 | */ |
| 3323 | _GLIBCXX_NODISCARD[[__nodiscard__]] _GLIBCXX20_CONSTEXPRconstexpr |
| 3324 | int |
| 3325 | compare(size_type __pos, size_type __n, const basic_string& __str) const |
| 3326 | { |
| 3327 | _M_check(__pos, "basic_string::compare"); |
| 3328 | __n = _M_limit(__pos, __n); |
| 3329 | const size_type __osize = __str.size(); |
| 3330 | const size_type __len = std::min(__n, __osize); |
| 3331 | int __r = traits_type::compare(_M_data() + __pos, __str.data(), __len); |
| 3332 | if (!__r) |
| 3333 | __r = _S_compare(__n, __osize); |
| 3334 | return __r; |
| 3335 | } |
| 3336 | |
| 3337 | /** |
| 3338 | * @brief Compare substring to a substring. |
| 3339 | * @param __pos1 Index of first character of substring. |
| 3340 | * @param __n1 Number of characters in substring. |
| 3341 | * @param __str String to compare against. |
| 3342 | * @param __pos2 Index of first character of substring of str. |
| 3343 | * @param __n2 Number of characters in substring of str. |
| 3344 | * @return Integer < 0, 0, or > 0. |
| 3345 | * |
| 3346 | * Form the substring of this string from the @a __n1 |
| 3347 | * characters starting at @a __pos1. Form the substring of @a |
| 3348 | * __str from the @a __n2 characters starting at @a __pos2. |
| 3349 | * Returns an integer < 0 if this substring is ordered before |
| 3350 | * the substring of @a __str, 0 if their values are equivalent, |
| 3351 | * or > 0 if this substring is ordered after the substring of |
| 3352 | * @a __str. Determines the effective length rlen of the |
| 3353 | * strings to compare as the smallest of the lengths of the |
| 3354 | * substrings. The function then compares the two strings by |
| 3355 | * calling |
| 3356 | * traits::compare(substring.data(),str.substr(pos2,n2).data(),rlen). |
| 3357 | * If the result of the comparison is nonzero returns it, |
| 3358 | * otherwise the shorter one is ordered first. |
| 3359 | */ |
| 3360 | _GLIBCXX_NODISCARD[[__nodiscard__]] _GLIBCXX20_CONSTEXPRconstexpr |
| 3361 | int |
| 3362 | compare(size_type __pos1, size_type __n1, const basic_string& __str, |
| 3363 | size_type __pos2, size_type __n2 = npos) const |
| 3364 | { |
| 3365 | _M_check(__pos1, "basic_string::compare"); |
| 3366 | __str._M_check(__pos2, "basic_string::compare"); |
| 3367 | __n1 = _M_limit(__pos1, __n1); |
| 3368 | __n2 = __str._M_limit(__pos2, __n2); |
| 3369 | const size_type __len = std::min(__n1, __n2); |
| 3370 | int __r = traits_type::compare(_M_data() + __pos1, |
| 3371 | __str.data() + __pos2, __len); |
| 3372 | if (!__r) |
| 3373 | __r = _S_compare(__n1, __n2); |
| 3374 | return __r; |
| 3375 | } |
| 3376 | |
| 3377 | /** |
| 3378 | * @brief Compare to a C string. |
| 3379 | * @param __s C string to compare against. |
| 3380 | * @return Integer < 0, 0, or > 0. |
| 3381 | * |
| 3382 | * Returns an integer < 0 if this string is ordered before @a __s, 0 if |
| 3383 | * their values are equivalent, or > 0 if this string is ordered after |
| 3384 | * @a __s. Determines the effective length rlen of the strings to |
| 3385 | * compare as the smallest of size() and the length of a string |
| 3386 | * constructed from @a __s. The function then compares the two strings |
| 3387 | * by calling traits::compare(data(),s,rlen). If the result of the |
| 3388 | * comparison is nonzero returns it, otherwise the shorter one is |
| 3389 | * ordered first. |
| 3390 | */ |
| 3391 | _GLIBCXX_NODISCARD[[__nodiscard__]] _GLIBCXX20_CONSTEXPRconstexpr |
| 3392 | int |
| 3393 | compare(const _CharT* __s) const _GLIBCXX_NOEXCEPTnoexcept |
| 3394 | { |
| 3395 | __glibcxx_requires_string(__s); |
| 3396 | const size_type __size = this->size(); |
| 3397 | const size_type __osize = traits_type::length(__s); |
| 3398 | const size_type __len = std::min(__size, __osize); |
| 3399 | int __r = traits_type::compare(_M_data(), __s, __len); |
| 3400 | if (!__r) |
| 3401 | __r = _S_compare(__size, __osize); |
| 3402 | return __r; |
| 3403 | } |
| 3404 | |
| 3405 | // _GLIBCXX_RESOLVE_LIB_DEFECTS |
| 3406 | // 5 String::compare specification questionable |
| 3407 | /** |
| 3408 | * @brief Compare substring to a C string. |
| 3409 | * @param __pos Index of first character of substring. |
| 3410 | * @param __n1 Number of characters in substring. |
| 3411 | * @param __s C string to compare against. |
| 3412 | * @return Integer < 0, 0, or > 0. |
| 3413 | * |
| 3414 | * Form the substring of this string from the @a __n1 |
| 3415 | * characters starting at @a pos. Returns an integer < 0 if |
| 3416 | * the substring is ordered before @a __s, 0 if their values |
| 3417 | * are equivalent, or > 0 if the substring is ordered after @a |
| 3418 | * __s. Determines the effective length rlen of the strings to |
| 3419 | * compare as the smallest of the length of the substring and |
| 3420 | * the length of a string constructed from @a __s. The |
| 3421 | * function then compares the two string by calling |
| 3422 | * traits::compare(substring.data(),__s,rlen). If the result of |
| 3423 | * the comparison is nonzero returns it, otherwise the shorter |
| 3424 | * one is ordered first. |
| 3425 | */ |
| 3426 | _GLIBCXX_NODISCARD[[__nodiscard__]] _GLIBCXX20_CONSTEXPRconstexpr |
| 3427 | int |
| 3428 | compare(size_type __pos, size_type __n1, const _CharT* __s) const |
| 3429 | { |
| 3430 | __glibcxx_requires_string(__s); |
| 3431 | _M_check(__pos, "basic_string::compare"); |
| 3432 | __n1 = _M_limit(__pos, __n1); |
| 3433 | const size_type __osize = traits_type::length(__s); |
| 3434 | const size_type __len = std::min(__n1, __osize); |
| 3435 | int __r = traits_type::compare(_M_data() + __pos, __s, __len); |
| 3436 | if (!__r) |
| 3437 | __r = _S_compare(__n1, __osize); |
| 3438 | return __r; |
| 3439 | } |
| 3440 | |
| 3441 | /** |
| 3442 | * @brief Compare substring against a character %array. |
| 3443 | * @param __pos Index of first character of substring. |
| 3444 | * @param __n1 Number of characters in substring. |
| 3445 | * @param __s character %array to compare against. |
| 3446 | * @param __n2 Number of characters of s. |
| 3447 | * @return Integer < 0, 0, or > 0. |
| 3448 | * |
| 3449 | * Form the substring of this string from the @a __n1 |
| 3450 | * characters starting at @a __pos. Form a string from the |
| 3451 | * first @a __n2 characters of @a __s. Returns an integer < 0 |
| 3452 | * if this substring is ordered before the string from @a __s, |
| 3453 | * 0 if their values are equivalent, or > 0 if this substring |
| 3454 | * is ordered after the string from @a __s. Determines the |
| 3455 | * effective length rlen of the strings to compare as the |
| 3456 | * smallest of the length of the substring and @a __n2. The |
| 3457 | * function then compares the two strings by calling |
| 3458 | * traits::compare(substring.data(),s,rlen). If the result of |
| 3459 | * the comparison is nonzero returns it, otherwise the shorter |
| 3460 | * one is ordered first. |
| 3461 | * |
| 3462 | * NB: s must have at least n2 characters, '\\0' has |
| 3463 | * no special meaning. |
| 3464 | */ |
| 3465 | _GLIBCXX_NODISCARD[[__nodiscard__]] _GLIBCXX20_CONSTEXPRconstexpr |
| 3466 | int |
| 3467 | compare(size_type __pos, size_type __n1, const _CharT* __s, |
| 3468 | size_type __n2) const |
| 3469 | { |
| 3470 | __glibcxx_requires_string_len(__s, __n2); |
| 3471 | _M_check(__pos, "basic_string::compare"); |
| 3472 | __n1 = _M_limit(__pos, __n1); |
| 3473 | const size_type __len = std::min(__n1, __n2); |
| 3474 | int __r = traits_type::compare(_M_data() + __pos, __s, __len); |
| 3475 | if (!__r) |
| 3476 | __r = _S_compare(__n1, __n2); |
| 3477 | return __r; |
| 3478 | } |
| 3479 | |
| 3480 | #if __cplusplus202002L >= 202002L |
| 3481 | [[nodiscard]] |
| 3482 | constexpr bool |
| 3483 | starts_with(basic_string_view<_CharT, _Traits> __x) const noexcept |
| 3484 | { return __sv_type(this->data(), this->size()).starts_with(__x); } |
| 3485 | |
| 3486 | [[nodiscard]] |
| 3487 | constexpr bool |
| 3488 | starts_with(_CharT __x) const noexcept |
| 3489 | { return __sv_type(this->data(), this->size()).starts_with(__x); } |
| 3490 | |
| 3491 | [[nodiscard, __gnu__::__nonnull__]] |
| 3492 | constexpr bool |
| 3493 | starts_with(const _CharT* __x) const noexcept |
| 3494 | { return __sv_type(this->data(), this->size()).starts_with(__x); } |
| 3495 | |
| 3496 | [[nodiscard]] |
| 3497 | constexpr bool |
| 3498 | ends_with(basic_string_view<_CharT, _Traits> __x) const noexcept |
| 3499 | { return __sv_type(this->data(), this->size()).ends_with(__x); } |
| 3500 | |
| 3501 | [[nodiscard]] |
| 3502 | constexpr bool |
| 3503 | ends_with(_CharT __x) const noexcept |
| 3504 | { return __sv_type(this->data(), this->size()).ends_with(__x); } |
| 3505 | |
| 3506 | [[nodiscard, __gnu__::__nonnull__]] |
| 3507 | constexpr bool |
| 3508 | ends_with(const _CharT* __x) const noexcept |
| 3509 | { return __sv_type(this->data(), this->size()).ends_with(__x); } |
| 3510 | #endif // C++20 |
| 3511 | |
| 3512 | #if __cplusplus202002L > 202002L |
| 3513 | [[nodiscard]] |
| 3514 | constexpr bool |
| 3515 | contains(basic_string_view<_CharT, _Traits> __x) const noexcept |
| 3516 | { return __sv_type(this->data(), this->size()).contains(__x); } |
| 3517 | |
| 3518 | [[nodiscard]] |
| 3519 | constexpr bool |
| 3520 | contains(_CharT __x) const noexcept |
| 3521 | { return __sv_type(this->data(), this->size()).contains(__x); } |
| 3522 | |
| 3523 | [[nodiscard, __gnu__::__nonnull__]] |
| 3524 | constexpr bool |
| 3525 | contains(const _CharT* __x) const noexcept |
| 3526 | { return __sv_type(this->data(), this->size()).contains(__x); } |
| 3527 | #endif // C++23 |
| 3528 | |
| 3529 | // Allow basic_stringbuf::__xfer_bufptrs to call _M_length: |
| 3530 | template<typename, typename, typename> friend class basic_stringbuf; |
| 3531 | }; |
| 3532 | _GLIBCXX_END_NAMESPACE_CXX11} |
| 3533 | _GLIBCXX_END_NAMESPACE_VERSION |
| 3534 | } // namespace std |
| 3535 | #endif // _GLIBCXX_USE_CXX11_ABI |
| 3536 | |
| 3537 | namespace std _GLIBCXX_VISIBILITY(default)__attribute__ ((__visibility__ ("default"))) |
| 3538 | { |
| 3539 | _GLIBCXX_BEGIN_NAMESPACE_VERSION |
| 3540 | |
| 3541 | #if __cpp_deduction_guides201703L >= 201606 |
| 3542 | _GLIBCXX_BEGIN_NAMESPACE_CXX11namespace __cxx11 { |
| 3543 | template<typename _InputIterator, typename _CharT |
| 3544 | = typename iterator_traits<_InputIterator>::value_type, |
| 3545 | typename _Allocator = allocator<_CharT>, |
| 3546 | typename = _RequireInputIter<_InputIterator>, |
| 3547 | typename = _RequireAllocator<_Allocator>> |
| 3548 | basic_string(_InputIterator, _InputIterator, _Allocator = _Allocator()) |
| 3549 | -> basic_string<_CharT, char_traits<_CharT>, _Allocator>; |
| 3550 | |
| 3551 | // _GLIBCXX_RESOLVE_LIB_DEFECTS |
| 3552 | // 3075. basic_string needs deduction guides from basic_string_view |
| 3553 | template<typename _CharT, typename _Traits, |
| 3554 | typename _Allocator = allocator<_CharT>, |
| 3555 | typename = _RequireAllocator<_Allocator>> |
| 3556 | basic_string(basic_string_view<_CharT, _Traits>, const _Allocator& = _Allocator()) |
| 3557 | -> basic_string<_CharT, _Traits, _Allocator>; |
| 3558 | |
| 3559 | template<typename _CharT, typename _Traits, |
| 3560 | typename _Allocator = allocator<_CharT>, |
| 3561 | typename = _RequireAllocator<_Allocator>> |
| 3562 | basic_string(basic_string_view<_CharT, _Traits>, |
| 3563 | typename basic_string<_CharT, _Traits, _Allocator>::size_type, |
| 3564 | typename basic_string<_CharT, _Traits, _Allocator>::size_type, |
| 3565 | const _Allocator& = _Allocator()) |
| 3566 | -> basic_string<_CharT, _Traits, _Allocator>; |
| 3567 | _GLIBCXX_END_NAMESPACE_CXX11} |
| 3568 | #endif |
| 3569 | |
| 3570 | template<typename _Str> |
| 3571 | _GLIBCXX20_CONSTEXPRconstexpr |
| 3572 | inline _Str |
| 3573 | __str_concat(typename _Str::value_type const* __lhs, |
| 3574 | typename _Str::size_type __lhs_len, |
| 3575 | typename _Str::value_type const* __rhs, |
| 3576 | typename _Str::size_type __rhs_len, |
| 3577 | typename _Str::allocator_type const& __a) |
| 3578 | { |
| 3579 | typedef typename _Str::allocator_type allocator_type; |
| 3580 | typedef __gnu_cxx::__alloc_traits<allocator_type> _Alloc_traits; |
| 3581 | _Str __str(_Alloc_traits::_S_select_on_copy(__a)); |
| 3582 | __str.reserve(__lhs_len + __rhs_len); |
| 3583 | __str.append(__lhs, __lhs_len); |
| 3584 | __str.append(__rhs, __rhs_len); |
| 3585 | return __str; |
| 3586 | } |
| 3587 | |
| 3588 | // operator+ |
| 3589 | /** |
| 3590 | * @brief Concatenate two strings. |
| 3591 | * @param __lhs First string. |
| 3592 | * @param __rhs Last string. |
| 3593 | * @return New string with value of @a __lhs followed by @a __rhs. |
| 3594 | */ |
| 3595 | template<typename _CharT, typename _Traits, typename _Alloc> |
| 3596 | _GLIBCXX_NODISCARD[[__nodiscard__]] _GLIBCXX20_CONSTEXPRconstexpr |
| 3597 | inline basic_string<_CharT, _Traits, _Alloc> |
| 3598 | operator+(const basic_string<_CharT, _Traits, _Alloc>& __lhs, |
| 3599 | const basic_string<_CharT, _Traits, _Alloc>& __rhs) |
| 3600 | { |
| 3601 | typedef basic_string<_CharT, _Traits, _Alloc> _Str; |
| 3602 | return std::__str_concat<_Str>(__lhs.c_str(), __lhs.size(), |
| 3603 | __rhs.c_str(), __rhs.size(), |
| 3604 | __lhs.get_allocator()); |
| 3605 | } |
| 3606 | |
| 3607 | /** |
| 3608 | * @brief Concatenate C string and string. |
| 3609 | * @param __lhs First string. |
| 3610 | * @param __rhs Last string. |
| 3611 | * @return New string with value of @a __lhs followed by @a __rhs. |
| 3612 | */ |
| 3613 | template<typename _CharT, typename _Traits, typename _Alloc> |
| 3614 | _GLIBCXX_NODISCARD[[__nodiscard__]] _GLIBCXX20_CONSTEXPRconstexpr |
| 3615 | inline basic_string<_CharT,_Traits,_Alloc> |
| 3616 | operator+(const _CharT* __lhs, |
| 3617 | const basic_string<_CharT,_Traits,_Alloc>& __rhs) |
| 3618 | { |
| 3619 | __glibcxx_requires_string(__lhs); |
| 3620 | typedef basic_string<_CharT, _Traits, _Alloc> _Str; |
| 3621 | return std::__str_concat<_Str>(__lhs, _Traits::length(__lhs), |
| 3622 | __rhs.c_str(), __rhs.size(), |
| 3623 | __rhs.get_allocator()); |
| 3624 | } |
| 3625 | |
| 3626 | /** |
| 3627 | * @brief Concatenate character and string. |
| 3628 | * @param __lhs First string. |
| 3629 | * @param __rhs Last string. |
| 3630 | * @return New string with @a __lhs followed by @a __rhs. |
| 3631 | */ |
| 3632 | template<typename _CharT, typename _Traits, typename _Alloc> |
| 3633 | _GLIBCXX_NODISCARD[[__nodiscard__]] _GLIBCXX20_CONSTEXPRconstexpr |
| 3634 | inline basic_string<_CharT,_Traits,_Alloc> |
| 3635 | operator+(_CharT __lhs, const basic_string<_CharT,_Traits,_Alloc>& __rhs) |
| 3636 | { |
| 3637 | typedef basic_string<_CharT, _Traits, _Alloc> _Str; |
| 3638 | return std::__str_concat<_Str>(__builtin_addressof(__lhs), 1, |
| 3639 | __rhs.c_str(), __rhs.size(), |
| 3640 | __rhs.get_allocator()); |
| 3641 | } |
| 3642 | |
| 3643 | /** |
| 3644 | * @brief Concatenate string and C string. |
| 3645 | * @param __lhs First string. |
| 3646 | * @param __rhs Last string. |
| 3647 | * @return New string with @a __lhs followed by @a __rhs. |
| 3648 | */ |
| 3649 | template<typename _CharT, typename _Traits, typename _Alloc> |
| 3650 | _GLIBCXX_NODISCARD[[__nodiscard__]] _GLIBCXX20_CONSTEXPRconstexpr |
| 3651 | inline basic_string<_CharT, _Traits, _Alloc> |
| 3652 | operator+(const basic_string<_CharT, _Traits, _Alloc>& __lhs, |
| 3653 | const _CharT* __rhs) |
| 3654 | { |
| 3655 | __glibcxx_requires_string(__rhs); |
| 3656 | typedef basic_string<_CharT, _Traits, _Alloc> _Str; |
| 3657 | return std::__str_concat<_Str>(__lhs.c_str(), __lhs.size(), |
| 3658 | __rhs, _Traits::length(__rhs), |
| 3659 | __lhs.get_allocator()); |
| 3660 | } |
| 3661 | /** |
| 3662 | * @brief Concatenate string and character. |
| 3663 | * @param __lhs First string. |
| 3664 | * @param __rhs Last string. |
| 3665 | * @return New string with @a __lhs followed by @a __rhs. |
| 3666 | */ |
| 3667 | template<typename _CharT, typename _Traits, typename _Alloc> |
| 3668 | _GLIBCXX_NODISCARD[[__nodiscard__]] _GLIBCXX20_CONSTEXPRconstexpr |
| 3669 | inline basic_string<_CharT, _Traits, _Alloc> |
| 3670 | operator+(const basic_string<_CharT, _Traits, _Alloc>& __lhs, _CharT __rhs) |
| 3671 | { |
| 3672 | typedef basic_string<_CharT, _Traits, _Alloc> _Str; |
| 3673 | return std::__str_concat<_Str>(__lhs.c_str(), __lhs.size(), |
| 3674 | __builtin_addressof(__rhs), 1, |
| 3675 | __lhs.get_allocator()); |
| 3676 | } |
| 3677 | |
| 3678 | #if __cplusplus202002L >= 201103L |
| 3679 | template<typename _CharT, typename _Traits, typename _Alloc> |
| 3680 | _GLIBCXX_NODISCARD[[__nodiscard__]] _GLIBCXX20_CONSTEXPRconstexpr |
| 3681 | inline basic_string<_CharT, _Traits, _Alloc> |
| 3682 | operator+(basic_string<_CharT, _Traits, _Alloc>&& __lhs, |
| 3683 | const basic_string<_CharT, _Traits, _Alloc>& __rhs) |
| 3684 | { return std::move(__lhs.append(__rhs)); } |
| 3685 | |
| 3686 | template<typename _CharT, typename _Traits, typename _Alloc> |
| 3687 | _GLIBCXX20_CONSTEXPRconstexpr |
| 3688 | inline basic_string<_CharT, _Traits, _Alloc> |
| 3689 | operator+(const basic_string<_CharT, _Traits, _Alloc>& __lhs, |
| 3690 | basic_string<_CharT, _Traits, _Alloc>&& __rhs) |
| 3691 | { return std::move(__rhs.insert(0, __lhs)); } |
| 3692 | |
| 3693 | template<typename _CharT, typename _Traits, typename _Alloc> |
| 3694 | _GLIBCXX_NODISCARD[[__nodiscard__]] _GLIBCXX20_CONSTEXPRconstexpr |
| 3695 | inline basic_string<_CharT, _Traits, _Alloc> |
| 3696 | operator+(basic_string<_CharT, _Traits, _Alloc>&& __lhs, |
| 3697 | basic_string<_CharT, _Traits, _Alloc>&& __rhs) |
| 3698 | { |
| 3699 | #if _GLIBCXX_USE_CXX11_ABI1 |
| 3700 | using _Alloc_traits = allocator_traits<_Alloc>; |
| 3701 | bool __use_rhs = false; |
| 3702 | if _GLIBCXX17_CONSTEXPRconstexpr (typename _Alloc_traits::is_always_equal{}) |
| 3703 | __use_rhs = true; |
| 3704 | else if (__lhs.get_allocator() == __rhs.get_allocator()) |
| 3705 | __use_rhs = true; |
| 3706 | if (__use_rhs) |
| 3707 | #endif |
| 3708 | { |
| 3709 | const auto __size = __lhs.size() + __rhs.size(); |
| 3710 | if (__size > __lhs.capacity() && __size <= __rhs.capacity()) |
| 3711 | return std::move(__rhs.insert(0, __lhs)); |
| 3712 | } |
| 3713 | return std::move(__lhs.append(__rhs)); |
| 3714 | } |
| 3715 | |
| 3716 | template<typename _CharT, typename _Traits, typename _Alloc> |
| 3717 | _GLIBCXX_NODISCARD[[__nodiscard__]] _GLIBCXX_NODISCARD[[__nodiscard__]] _GLIBCXX20_CONSTEXPRconstexpr |
| 3718 | inline basic_string<_CharT, _Traits, _Alloc> |
| 3719 | operator+(const _CharT* __lhs, |
| 3720 | basic_string<_CharT, _Traits, _Alloc>&& __rhs) |
| 3721 | { return std::move(__rhs.insert(0, __lhs)); } |
| 3722 | |
| 3723 | template<typename _CharT, typename _Traits, typename _Alloc> |
| 3724 | _GLIBCXX_NODISCARD[[__nodiscard__]] _GLIBCXX20_CONSTEXPRconstexpr |
| 3725 | inline basic_string<_CharT, _Traits, _Alloc> |
| 3726 | operator+(_CharT __lhs, |
| 3727 | basic_string<_CharT, _Traits, _Alloc>&& __rhs) |
| 3728 | { return std::move(__rhs.insert(0, 1, __lhs)); } |
| 3729 | |
| 3730 | template<typename _CharT, typename _Traits, typename _Alloc> |
| 3731 | _GLIBCXX_NODISCARD[[__nodiscard__]] _GLIBCXX20_CONSTEXPRconstexpr |
| 3732 | inline basic_string<_CharT, _Traits, _Alloc> |
| 3733 | operator+(basic_string<_CharT, _Traits, _Alloc>&& __lhs, |
| 3734 | const _CharT* __rhs) |
| 3735 | { return std::move(__lhs.append(__rhs)); } |
| 3736 | |
| 3737 | template<typename _CharT, typename _Traits, typename _Alloc> |
| 3738 | _GLIBCXX_NODISCARD[[__nodiscard__]] _GLIBCXX20_CONSTEXPRconstexpr |
| 3739 | inline basic_string<_CharT, _Traits, _Alloc> |
| 3740 | operator+(basic_string<_CharT, _Traits, _Alloc>&& __lhs, |
| 3741 | _CharT __rhs) |
| 3742 | { return std::move(__lhs.append(1, __rhs)); } |
| 3743 | #endif |
| 3744 | |
| 3745 | // operator == |
| 3746 | /** |
| 3747 | * @brief Test equivalence of two strings. |
| 3748 | * @param __lhs First string. |
| 3749 | * @param __rhs Second string. |
| 3750 | * @return True if @a __lhs.compare(@a __rhs) == 0. False otherwise. |
| 3751 | */ |
| 3752 | template<typename _CharT, typename _Traits, typename _Alloc> |
| 3753 | _GLIBCXX_NODISCARD[[__nodiscard__]] _GLIBCXX20_CONSTEXPRconstexpr |
| 3754 | inline bool |
| 3755 | operator==(const basic_string<_CharT, _Traits, _Alloc>& __lhs, |
| 3756 | const basic_string<_CharT, _Traits, _Alloc>& __rhs) |
| 3757 | _GLIBCXX_NOEXCEPTnoexcept |
| 3758 | { |
| 3759 | return __lhs.size() == __rhs.size() |
| 3760 | && !_Traits::compare(__lhs.data(), __rhs.data(), __lhs.size()); |
| 3761 | } |
| 3762 | |
| 3763 | /** |
| 3764 | * @brief Test equivalence of string and C string. |
| 3765 | * @param __lhs String. |
| 3766 | * @param __rhs C string. |
| 3767 | * @return True if @a __lhs.compare(@a __rhs) == 0. False otherwise. |
| 3768 | */ |
| 3769 | template<typename _CharT, typename _Traits, typename _Alloc> |
| 3770 | _GLIBCXX_NODISCARD[[__nodiscard__]] _GLIBCXX20_CONSTEXPRconstexpr |
| 3771 | inline bool |
| 3772 | operator==(const basic_string<_CharT, _Traits, _Alloc>& __lhs, |
| 3773 | const _CharT* __rhs) |
| 3774 | { |
| 3775 | return __lhs.size() == _Traits::length(__rhs) |
| 3776 | && !_Traits::compare(__lhs.data(), __rhs, __lhs.size()); |
| 3777 | } |
| 3778 | |
| 3779 | #if __cpp_lib_three_way_comparison201907L |
| 3780 | /** |
| 3781 | * @brief Three-way comparison of a string and a C string. |
| 3782 | * @param __lhs A string. |
| 3783 | * @param __rhs A null-terminated string. |
| 3784 | * @return A value indicating whether `__lhs` is less than, equal to, |
| 3785 | * greater than, or incomparable with `__rhs`. |
| 3786 | */ |
| 3787 | template<typename _CharT, typename _Traits, typename _Alloc> |
| 3788 | [[nodiscard]] |
| 3789 | constexpr auto |
| 3790 | operator<=>(const basic_string<_CharT, _Traits, _Alloc>& __lhs, |
| 3791 | const basic_string<_CharT, _Traits, _Alloc>& __rhs) noexcept |
| 3792 | -> decltype(__detail::__char_traits_cmp_cat<_Traits>(0)) |
| 3793 | { return __detail::__char_traits_cmp_cat<_Traits>(__lhs.compare(__rhs)); } |
| 3794 | |
| 3795 | /** |
| 3796 | * @brief Three-way comparison of a string and a C string. |
| 3797 | * @param __lhs A string. |
| 3798 | * @param __rhs A null-terminated string. |
| 3799 | * @return A value indicating whether `__lhs` is less than, equal to, |
| 3800 | * greater than, or incomparable with `__rhs`. |
| 3801 | */ |
| 3802 | template<typename _CharT, typename _Traits, typename _Alloc> |
| 3803 | [[nodiscard]] |
| 3804 | constexpr auto |
| 3805 | operator<=>(const basic_string<_CharT, _Traits, _Alloc>& __lhs, |
| 3806 | const _CharT* __rhs) noexcept |
| 3807 | -> decltype(__detail::__char_traits_cmp_cat<_Traits>(0)) |
| 3808 | { return __detail::__char_traits_cmp_cat<_Traits>(__lhs.compare(__rhs)); } |
| 3809 | #else |
| 3810 | /** |
| 3811 | * @brief Test equivalence of C string and string. |
| 3812 | * @param __lhs C string. |
| 3813 | * @param __rhs String. |
| 3814 | * @return True if @a __rhs.compare(@a __lhs) == 0. False otherwise. |
| 3815 | */ |
| 3816 | template<typename _CharT, typename _Traits, typename _Alloc> |
| 3817 | _GLIBCXX_NODISCARD[[__nodiscard__]] |
| 3818 | inline bool |
| 3819 | operator==(const _CharT* __lhs, |
| 3820 | const basic_string<_CharT, _Traits, _Alloc>& __rhs) |
| 3821 | { return __rhs == __lhs; } |
| 3822 | |
| 3823 | // operator != |
| 3824 | /** |
| 3825 | * @brief Test difference of two strings. |
| 3826 | * @param __lhs First string. |
| 3827 | * @param __rhs Second string. |
| 3828 | * @return True if @a __lhs.compare(@a __rhs) != 0. False otherwise. |
| 3829 | */ |
| 3830 | template<typename _CharT, typename _Traits, typename _Alloc> |
| 3831 | _GLIBCXX_NODISCARD[[__nodiscard__]] |
| 3832 | inline bool |
| 3833 | operator!=(const basic_string<_CharT, _Traits, _Alloc>& __lhs, |
| 3834 | const basic_string<_CharT, _Traits, _Alloc>& __rhs) |
| 3835 | _GLIBCXX_NOEXCEPTnoexcept |
| 3836 | { return !(__lhs == __rhs); } |
| 3837 | |
| 3838 | /** |
| 3839 | * @brief Test difference of C string and string. |
| 3840 | * @param __lhs C string. |
| 3841 | * @param __rhs String. |
| 3842 | * @return True if @a __rhs.compare(@a __lhs) != 0. False otherwise. |
| 3843 | */ |
| 3844 | template<typename _CharT, typename _Traits, typename _Alloc> |
| 3845 | _GLIBCXX_NODISCARD[[__nodiscard__]] |
| 3846 | inline bool |
| 3847 | operator!=(const _CharT* __lhs, |
| 3848 | const basic_string<_CharT, _Traits, _Alloc>& __rhs) |
| 3849 | { return !(__rhs == __lhs); } |
| 3850 | |
| 3851 | /** |
| 3852 | * @brief Test difference of string and C string. |
| 3853 | * @param __lhs String. |
| 3854 | * @param __rhs C string. |
| 3855 | * @return True if @a __lhs.compare(@a __rhs) != 0. False otherwise. |
| 3856 | */ |
| 3857 | template<typename _CharT, typename _Traits, typename _Alloc> |
| 3858 | _GLIBCXX_NODISCARD[[__nodiscard__]] |
| 3859 | inline bool |
| 3860 | operator!=(const basic_string<_CharT, _Traits, _Alloc>& __lhs, |
| 3861 | const _CharT* __rhs) |
| 3862 | { return !(__lhs == __rhs); } |
| 3863 | |
| 3864 | // operator < |
| 3865 | /** |
| 3866 | * @brief Test if string precedes string. |
| 3867 | * @param __lhs First string. |
| 3868 | * @param __rhs Second string. |
| 3869 | * @return True if @a __lhs precedes @a __rhs. False otherwise. |
| 3870 | */ |
| 3871 | template<typename _CharT, typename _Traits, typename _Alloc> |
| 3872 | _GLIBCXX_NODISCARD[[__nodiscard__]] |
| 3873 | inline bool |
| 3874 | operator<(const basic_string<_CharT, _Traits, _Alloc>& __lhs, |
| 3875 | const basic_string<_CharT, _Traits, _Alloc>& __rhs) |
| 3876 | _GLIBCXX_NOEXCEPTnoexcept |
| 3877 | { return __lhs.compare(__rhs) < 0; } |
| 3878 | |
| 3879 | /** |
| 3880 | * @brief Test if string precedes C string. |
| 3881 | * @param __lhs String. |
| 3882 | * @param __rhs C string. |
| 3883 | * @return True if @a __lhs precedes @a __rhs. False otherwise. |
| 3884 | */ |
| 3885 | template<typename _CharT, typename _Traits, typename _Alloc> |
| 3886 | _GLIBCXX_NODISCARD[[__nodiscard__]] |
| 3887 | inline bool |
| 3888 | operator<(const basic_string<_CharT, _Traits, _Alloc>& __lhs, |
| 3889 | const _CharT* __rhs) |
| 3890 | { return __lhs.compare(__rhs) < 0; } |
| 3891 | |
| 3892 | /** |
| 3893 | * @brief Test if C string precedes string. |
| 3894 | * @param __lhs C string. |
| 3895 | * @param __rhs String. |
| 3896 | * @return True if @a __lhs precedes @a __rhs. False otherwise. |
| 3897 | */ |
| 3898 | template<typename _CharT, typename _Traits, typename _Alloc> |
| 3899 | _GLIBCXX_NODISCARD[[__nodiscard__]] |
| 3900 | inline bool |
| 3901 | operator<(const _CharT* __lhs, |
| 3902 | const basic_string<_CharT, _Traits, _Alloc>& __rhs) |
| 3903 | { return __rhs.compare(__lhs) > 0; } |
| 3904 | |
| 3905 | // operator > |
| 3906 | /** |
| 3907 | * @brief Test if string follows string. |
| 3908 | * @param __lhs First string. |
| 3909 | * @param __rhs Second string. |
| 3910 | * @return True if @a __lhs follows @a __rhs. False otherwise. |
| 3911 | */ |
| 3912 | template<typename _CharT, typename _Traits, typename _Alloc> |
| 3913 | _GLIBCXX_NODISCARD[[__nodiscard__]] |
| 3914 | inline bool |
| 3915 | operator>(const basic_string<_CharT, _Traits, _Alloc>& __lhs, |
| 3916 | const basic_string<_CharT, _Traits, _Alloc>& __rhs) |
| 3917 | _GLIBCXX_NOEXCEPTnoexcept |
| 3918 | { return __lhs.compare(__rhs) > 0; } |
| 3919 | |
| 3920 | /** |
| 3921 | * @brief Test if string follows C string. |
| 3922 | * @param __lhs String. |
| 3923 | * @param __rhs C string. |
| 3924 | * @return True if @a __lhs follows @a __rhs. False otherwise. |
| 3925 | */ |
| 3926 | template<typename _CharT, typename _Traits, typename _Alloc> |
| 3927 | _GLIBCXX_NODISCARD[[__nodiscard__]] |
| 3928 | inline bool |
| 3929 | operator>(const basic_string<_CharT, _Traits, _Alloc>& __lhs, |
| 3930 | const _CharT* __rhs) |
| 3931 | { return __lhs.compare(__rhs) > 0; } |
| 3932 | |
| 3933 | /** |
| 3934 | * @brief Test if C string follows string. |
| 3935 | * @param __lhs C string. |
| 3936 | * @param __rhs String. |
| 3937 | * @return True if @a __lhs follows @a __rhs. False otherwise. |
| 3938 | */ |
| 3939 | template<typename _CharT, typename _Traits, typename _Alloc> |
| 3940 | _GLIBCXX_NODISCARD[[__nodiscard__]] |
| 3941 | inline bool |
| 3942 | operator>(const _CharT* __lhs, |
| 3943 | const basic_string<_CharT, _Traits, _Alloc>& __rhs) |
| 3944 | { return __rhs.compare(__lhs) < 0; } |
| 3945 | |
| 3946 | // operator <= |
| 3947 | /** |
| 3948 | * @brief Test if string doesn't follow string. |
| 3949 | * @param __lhs First string. |
| 3950 | * @param __rhs Second string. |
| 3951 | * @return True if @a __lhs doesn't follow @a __rhs. False otherwise. |
| 3952 | */ |
| 3953 | template<typename _CharT, typename _Traits, typename _Alloc> |
| 3954 | _GLIBCXX_NODISCARD[[__nodiscard__]] |
| 3955 | inline bool |
| 3956 | operator<=(const basic_string<_CharT, _Traits, _Alloc>& __lhs, |
| 3957 | const basic_string<_CharT, _Traits, _Alloc>& __rhs) |
| 3958 | _GLIBCXX_NOEXCEPTnoexcept |
| 3959 | { return __lhs.compare(__rhs) <= 0; } |
| 3960 | |
| 3961 | /** |
| 3962 | * @brief Test if string doesn't follow C string. |
| 3963 | * @param __lhs String. |
| 3964 | * @param __rhs C string. |
| 3965 | * @return True if @a __lhs doesn't follow @a __rhs. False otherwise. |
| 3966 | */ |
| 3967 | template<typename _CharT, typename _Traits, typename _Alloc> |
| 3968 | _GLIBCXX_NODISCARD[[__nodiscard__]] |
| 3969 | inline bool |
| 3970 | operator<=(const basic_string<_CharT, _Traits, _Alloc>& __lhs, |
| 3971 | const _CharT* __rhs) |
| 3972 | { return __lhs.compare(__rhs) <= 0; } |
| 3973 | |
| 3974 | /** |
| 3975 | * @brief Test if C string doesn't follow string. |
| 3976 | * @param __lhs C string. |
| 3977 | * @param __rhs String. |
| 3978 | * @return True if @a __lhs doesn't follow @a __rhs. False otherwise. |
| 3979 | */ |
| 3980 | template<typename _CharT, typename _Traits, typename _Alloc> |
| 3981 | _GLIBCXX_NODISCARD[[__nodiscard__]] |
| 3982 | inline bool |
| 3983 | operator<=(const _CharT* __lhs, |
| 3984 | const basic_string<_CharT, _Traits, _Alloc>& __rhs) |
| 3985 | { return __rhs.compare(__lhs) >= 0; } |
| 3986 | |
| 3987 | // operator >= |
| 3988 | /** |
| 3989 | * @brief Test if string doesn't precede string. |
| 3990 | * @param __lhs First string. |
| 3991 | * @param __rhs Second string. |
| 3992 | * @return True if @a __lhs doesn't precede @a __rhs. False otherwise. |
| 3993 | */ |
| 3994 | template<typename _CharT, typename _Traits, typename _Alloc> |
| 3995 | _GLIBCXX_NODISCARD[[__nodiscard__]] |
| 3996 | inline bool |
| 3997 | operator>=(const basic_string<_CharT, _Traits, _Alloc>& __lhs, |
| 3998 | const basic_string<_CharT, _Traits, _Alloc>& __rhs) |
| 3999 | _GLIBCXX_NOEXCEPTnoexcept |
| 4000 | { return __lhs.compare(__rhs) >= 0; } |
| 4001 | |
| 4002 | /** |
| 4003 | * @brief Test if string doesn't precede C string. |
| 4004 | * @param __lhs String. |
| 4005 | * @param __rhs C string. |
| 4006 | * @return True if @a __lhs doesn't precede @a __rhs. False otherwise. |
| 4007 | */ |
| 4008 | template<typename _CharT, typename _Traits, typename _Alloc> |
| 4009 | _GLIBCXX_NODISCARD[[__nodiscard__]] |
| 4010 | inline bool |
| 4011 | operator>=(const basic_string<_CharT, _Traits, _Alloc>& __lhs, |
| 4012 | const _CharT* __rhs) |
| 4013 | { return __lhs.compare(__rhs) >= 0; } |
| 4014 | |
| 4015 | /** |
| 4016 | * @brief Test if C string doesn't precede string. |
| 4017 | * @param __lhs C string. |
| 4018 | * @param __rhs String. |
| 4019 | * @return True if @a __lhs doesn't precede @a __rhs. False otherwise. |
| 4020 | */ |
| 4021 | template<typename _CharT, typename _Traits, typename _Alloc> |
| 4022 | _GLIBCXX_NODISCARD[[__nodiscard__]] |
| 4023 | inline bool |
| 4024 | operator>=(const _CharT* __lhs, |
| 4025 | const basic_string<_CharT, _Traits, _Alloc>& __rhs) |
| 4026 | { return __rhs.compare(__lhs) <= 0; } |
| 4027 | #endif // three-way comparison |
| 4028 | |
| 4029 | /** |
| 4030 | * @brief Swap contents of two strings. |
| 4031 | * @param __lhs First string. |
| 4032 | * @param __rhs Second string. |
| 4033 | * |
| 4034 | * Exchanges the contents of @a __lhs and @a __rhs in constant time. |
| 4035 | */ |
| 4036 | template<typename _CharT, typename _Traits, typename _Alloc> |
| 4037 | _GLIBCXX20_CONSTEXPRconstexpr |
| 4038 | inline void |
| 4039 | swap(basic_string<_CharT, _Traits, _Alloc>& __lhs, |
| 4040 | basic_string<_CharT, _Traits, _Alloc>& __rhs) |
| 4041 | _GLIBCXX_NOEXCEPT_IF(noexcept(__lhs.swap(__rhs)))noexcept(noexcept(__lhs.swap(__rhs))) |
| 4042 | { __lhs.swap(__rhs); } |
| 4043 | |
| 4044 | |
| 4045 | /** |
| 4046 | * @brief Read stream into a string. |
| 4047 | * @param __is Input stream. |
| 4048 | * @param __str Buffer to store into. |
| 4049 | * @return Reference to the input stream. |
| 4050 | * |
| 4051 | * Stores characters from @a __is into @a __str until whitespace is |
| 4052 | * found, the end of the stream is encountered, or str.max_size() |
| 4053 | * is reached. If is.width() is non-zero, that is the limit on the |
| 4054 | * number of characters stored into @a __str. Any previous |
| 4055 | * contents of @a __str are erased. |
| 4056 | */ |
| 4057 | template<typename _CharT, typename _Traits, typename _Alloc> |
| 4058 | basic_istream<_CharT, _Traits>& |
| 4059 | operator>>(basic_istream<_CharT, _Traits>& __is, |
| 4060 | basic_string<_CharT, _Traits, _Alloc>& __str); |
| 4061 | |
| 4062 | template<> |
| 4063 | basic_istream<char>& |
| 4064 | operator>>(basic_istream<char>& __is, basic_string<char>& __str); |
| 4065 | |
| 4066 | /** |
| 4067 | * @brief Write string to a stream. |
| 4068 | * @param __os Output stream. |
| 4069 | * @param __str String to write out. |
| 4070 | * @return Reference to the output stream. |
| 4071 | * |
| 4072 | * Output characters of @a __str into os following the same rules as for |
| 4073 | * writing a C string. |
| 4074 | */ |
| 4075 | template<typename _CharT, typename _Traits, typename _Alloc> |
| 4076 | inline basic_ostream<_CharT, _Traits>& |
| 4077 | operator<<(basic_ostream<_CharT, _Traits>& __os, |
| 4078 | const basic_string<_CharT, _Traits, _Alloc>& __str) |
| 4079 | { |
| 4080 | // _GLIBCXX_RESOLVE_LIB_DEFECTS |
| 4081 | // 586. string inserter not a formatted function |
| 4082 | return __ostream_insert(__os, __str.data(), __str.size()); |
| 4083 | } |
| 4084 | |
| 4085 | /** |
| 4086 | * @brief Read a line from stream into a string. |
| 4087 | * @param __is Input stream. |
| 4088 | * @param __str Buffer to store into. |
| 4089 | * @param __delim Character marking end of line. |
| 4090 | * @return Reference to the input stream. |
| 4091 | * |
| 4092 | * Stores characters from @a __is into @a __str until @a __delim is |
| 4093 | * found, the end of the stream is encountered, or str.max_size() |
| 4094 | * is reached. Any previous contents of @a __str are erased. If |
| 4095 | * @a __delim is encountered, it is extracted but not stored into |
| 4096 | * @a __str. |
| 4097 | */ |
| 4098 | template<typename _CharT, typename _Traits, typename _Alloc> |
| 4099 | basic_istream<_CharT, _Traits>& |
| 4100 | getline(basic_istream<_CharT, _Traits>& __is, |
| 4101 | basic_string<_CharT, _Traits, _Alloc>& __str, _CharT __delim); |
| 4102 | |
| 4103 | /** |
| 4104 | * @brief Read a line from stream into a string. |
| 4105 | * @param __is Input stream. |
| 4106 | * @param __str Buffer to store into. |
| 4107 | * @return Reference to the input stream. |
| 4108 | * |
| 4109 | * Stores characters from is into @a __str until '\n' is |
| 4110 | * found, the end of the stream is encountered, or str.max_size() |
| 4111 | * is reached. Any previous contents of @a __str are erased. If |
| 4112 | * end of line is encountered, it is extracted but not stored into |
| 4113 | * @a __str. |
| 4114 | */ |
| 4115 | template<typename _CharT, typename _Traits, typename _Alloc> |
| 4116 | inline basic_istream<_CharT, _Traits>& |
| 4117 | getline(basic_istream<_CharT, _Traits>& __is, |
| 4118 | basic_string<_CharT, _Traits, _Alloc>& __str) |
| 4119 | { return std::getline(__is, __str, __is.widen('\n')); } |
| 4120 | |
| 4121 | #if __cplusplus202002L >= 201103L |
| 4122 | /// Read a line from an rvalue stream into a string. |
| 4123 | template<typename _CharT, typename _Traits, typename _Alloc> |
| 4124 | inline basic_istream<_CharT, _Traits>& |
| 4125 | getline(basic_istream<_CharT, _Traits>&& __is, |
| 4126 | basic_string<_CharT, _Traits, _Alloc>& __str, _CharT __delim) |
| 4127 | { return std::getline(__is, __str, __delim); } |
| 4128 | |
| 4129 | /// Read a line from an rvalue stream into a string. |
| 4130 | template<typename _CharT, typename _Traits, typename _Alloc> |
| 4131 | inline basic_istream<_CharT, _Traits>& |
| 4132 | getline(basic_istream<_CharT, _Traits>&& __is, |
| 4133 | basic_string<_CharT, _Traits, _Alloc>& __str) |
| 4134 | { return std::getline(__is, __str); } |
| 4135 | #endif |
| 4136 | |
| 4137 | template<> |
| 4138 | basic_istream<char>& |
| 4139 | getline(basic_istream<char>& __in, basic_string<char>& __str, |
| 4140 | char __delim); |
| 4141 | |
| 4142 | #ifdef _GLIBCXX_USE_WCHAR_T1 |
| 4143 | template<> |
| 4144 | basic_istream<wchar_t>& |
| 4145 | getline(basic_istream<wchar_t>& __in, basic_string<wchar_t>& __str, |
| 4146 | wchar_t __delim); |
| 4147 | #endif |
| 4148 | |
| 4149 | _GLIBCXX_END_NAMESPACE_VERSION |
| 4150 | } // namespace |
| 4151 | |
| 4152 | #if __cplusplus202002L >= 201103L |
| 4153 | |
| 4154 | #include <ext/string_conversions.h> |
| 4155 | #include <bits/charconv.h> |
| 4156 | |
| 4157 | namespace std _GLIBCXX_VISIBILITY(default)__attribute__ ((__visibility__ ("default"))) |
| 4158 | { |
| 4159 | _GLIBCXX_BEGIN_NAMESPACE_VERSION |
| 4160 | _GLIBCXX_BEGIN_NAMESPACE_CXX11namespace __cxx11 { |
| 4161 | |
| 4162 | // 21.4 Numeric Conversions [string.conversions]. |
| 4163 | inline int |
| 4164 | stoi(const string& __str, size_t* __idx = 0, int __base = 10) |
| 4165 | { return __gnu_cxx::__stoa<long, int>(&std::strtol, "stoi", __str.c_str(), |
| 4166 | __idx, __base); } |
| 4167 | |
| 4168 | inline long |
| 4169 | stol(const string& __str, size_t* __idx = 0, int __base = 10) |
| 4170 | { return __gnu_cxx::__stoa(&std::strtol, "stol", __str.c_str(), |
| 4171 | __idx, __base); } |
| 4172 | |
| 4173 | inline unsigned long |
| 4174 | stoul(const string& __str, size_t* __idx = 0, int __base = 10) |
| 4175 | { return __gnu_cxx::__stoa(&std::strtoul, "stoul", __str.c_str(), |
| 4176 | __idx, __base); } |
| 4177 | |
| 4178 | #if _GLIBCXX_USE_C99_STDLIB1 |
| 4179 | inline long long |
| 4180 | stoll(const string& __str, size_t* __idx = 0, int __base = 10) |
| 4181 | { return __gnu_cxx::__stoa(&std::strtoll, "stoll", __str.c_str(), |
| 4182 | __idx, __base); } |
| 4183 | |
| 4184 | inline unsigned long long |
| 4185 | stoull(const string& __str, size_t* __idx = 0, int __base = 10) |
| 4186 | { return __gnu_cxx::__stoa(&std::strtoull, "stoull", __str.c_str(), |
| 4187 | __idx, __base); } |
| 4188 | #elif __LONG_WIDTH__64 == __LONG_LONG_WIDTH__ |
| 4189 | inline long long |
| 4190 | stoll(const string& __str, size_t* __idx = 0, int __base = 10) |
| 4191 | { return std::stol(__str, __idx, __base); } |
| 4192 | |
| 4193 | inline unsigned long long |
| 4194 | stoull(const string& __str, size_t* __idx = 0, int __base = 10) |
| 4195 | { return std::stoul(__str, __idx, __base); } |
| 4196 | #endif |
| 4197 | |
| 4198 | inline double |
| 4199 | stod(const string& __str, size_t* __idx = 0) |
| 4200 | { return __gnu_cxx::__stoa(&std::strtod, "stod", __str.c_str(), __idx); } |
| 4201 | |
| 4202 | #if _GLIBCXX_HAVE_STRTOF1 |
| 4203 | // NB: strtof vs strtod. |
| 4204 | inline float |
| 4205 | stof(const string& __str, size_t* __idx = 0) |
| 4206 | { return __gnu_cxx::__stoa(&std::strtof, "stof", __str.c_str(), __idx); } |
| 4207 | #else |
| 4208 | inline float |
| 4209 | stof(const string& __str, size_t* __idx = 0) |
| 4210 | { |
| 4211 | double __d = std::stod(__str, __idx); |
| 4212 | if (__builtin_isfinite(__d) && __d != 0.0) |
| 4213 | { |
| 4214 | double __abs_d = __builtin_fabs(__d); |
| 4215 | if (__abs_d < __FLT_MIN__1.17549435e-38F || __abs_d > __FLT_MAX__3.40282347e+38F) |
| 4216 | { |
| 4217 | errno(*__errno_location ()) = ERANGE34; |
| 4218 | std::__throw_out_of_range("stof"); |
| 4219 | } |
| 4220 | } |
| 4221 | return __d; |
| 4222 | } |
| 4223 | #endif |
| 4224 | |
| 4225 | #if _GLIBCXX_HAVE_STRTOLD1 && ! _GLIBCXX_HAVE_BROKEN_STRTOLD |
| 4226 | inline long double |
| 4227 | stold(const string& __str, size_t* __idx = 0) |
| 4228 | { return __gnu_cxx::__stoa(&std::strtold, "stold", __str.c_str(), __idx); } |
| 4229 | #elif __DBL_MANT_DIG__53 == __LDBL_MANT_DIG__64 |
| 4230 | inline long double |
| 4231 | stold(const string& __str, size_t* __idx = 0) |
| 4232 | { return std::stod(__str, __idx); } |
| 4233 | #endif |
| 4234 | |
| 4235 | // _GLIBCXX_RESOLVE_LIB_DEFECTS |
| 4236 | // DR 1261. Insufficent overloads for to_string / to_wstring |
| 4237 | |
| 4238 | _GLIBCXX_NODISCARD[[__nodiscard__]] |
| 4239 | inline string |
| 4240 | to_string(int __val) |
| 4241 | #if _GLIBCXX_USE_CXX11_ABI1 && (__CHAR_BIT__8 * __SIZEOF_INT__4) <= 32 |
| 4242 | noexcept // any 32-bit value fits in the SSO buffer |
| 4243 | #endif |
| 4244 | { |
| 4245 | const bool __neg = __val < 0; |
| 4246 | const unsigned __uval = __neg ? (unsigned)~__val + 1u : __val; |
| 4247 | const auto __len = __detail::__to_chars_len(__uval); |
| 4248 | string __str; |
| 4249 | __str.__resize_and_overwrite(__neg + __len, [=](char* __p, size_t __n) { |
| 4250 | __p[0] = '-'; |
| 4251 | __detail::__to_chars_10_impl(__p + (int)__neg, __len, __uval); |
| 4252 | return __n; |
| 4253 | }); |
| 4254 | return __str; |
| 4255 | } |
| 4256 | |
| 4257 | _GLIBCXX_NODISCARD[[__nodiscard__]] |
| 4258 | inline string |
| 4259 | to_string(unsigned __val) |
| 4260 | #if _GLIBCXX_USE_CXX11_ABI1 && (__CHAR_BIT__8 * __SIZEOF_INT__4) <= 32 |
| 4261 | noexcept // any 32-bit value fits in the SSO buffer |
| 4262 | #endif |
| 4263 | { |
| 4264 | const auto __len = __detail::__to_chars_len(__val); |
| 4265 | string __str; |
| 4266 | __str.__resize_and_overwrite(__len, [__val](char* __p, size_t __n) { |
| 4267 | __detail::__to_chars_10_impl(__p, __n, __val); |
| 4268 | return __n; |
| 4269 | }); |
| 4270 | return __str; |
| 4271 | } |
| 4272 | |
| 4273 | _GLIBCXX_NODISCARD[[__nodiscard__]] |
| 4274 | inline string |
| 4275 | to_string(long __val) |
| 4276 | #if _GLIBCXX_USE_CXX11_ABI1 && (__CHAR_BIT__8 * __SIZEOF_LONG__8) <= 32 |
| 4277 | noexcept // any 32-bit value fits in the SSO buffer |
| 4278 | #endif |
| 4279 | { |
| 4280 | const bool __neg = __val < 0; |
| 4281 | const unsigned long __uval = __neg ? (unsigned long)~__val + 1ul : __val; |
| 4282 | const auto __len = __detail::__to_chars_len(__uval); |
| 4283 | string __str; |
| 4284 | __str.__resize_and_overwrite(__neg + __len, [=](char* __p, size_t __n) { |
| 4285 | __p[0] = '-'; |
| 4286 | __detail::__to_chars_10_impl(__p + (int)__neg, __len, __uval); |
| 4287 | return __n; |
| 4288 | }); |
| 4289 | return __str; |
| 4290 | } |
| 4291 | |
| 4292 | _GLIBCXX_NODISCARD[[__nodiscard__]] |
| 4293 | inline string |
| 4294 | to_string(unsigned long __val) |
| 4295 | #if _GLIBCXX_USE_CXX11_ABI1 && (__CHAR_BIT__8 * __SIZEOF_LONG__8) <= 32 |
| 4296 | noexcept // any 32-bit value fits in the SSO buffer |
| 4297 | #endif |
| 4298 | { |
| 4299 | const auto __len = __detail::__to_chars_len(__val); |
| 4300 | string __str; |
| 4301 | __str.__resize_and_overwrite(__len, [__val](char* __p, size_t __n) { |
| 4302 | __detail::__to_chars_10_impl(__p, __n, __val); |
| 4303 | return __n; |
| 4304 | }); |
| 4305 | return __str; |
| 4306 | } |
| 4307 | |
| 4308 | _GLIBCXX_NODISCARD[[__nodiscard__]] |
| 4309 | inline string |
| 4310 | to_string(long long __val) |
| 4311 | { |
| 4312 | const bool __neg = __val < 0; |
| 4313 | const unsigned long long __uval |
| 4314 | = __neg ? (unsigned long long)~__val + 1ull : __val; |
| 4315 | const auto __len = __detail::__to_chars_len(__uval); |
| 4316 | string __str; |
| 4317 | __str.__resize_and_overwrite(__neg + __len, [=](char* __p, size_t __n) { |
| 4318 | __p[0] = '-'; |
| 4319 | __detail::__to_chars_10_impl(__p + (int)__neg, __len, __uval); |
| 4320 | return __n; |
| 4321 | }); |
| 4322 | return __str; |
| 4323 | } |
| 4324 | |
| 4325 | _GLIBCXX_NODISCARD[[__nodiscard__]] |
| 4326 | inline string |
| 4327 | to_string(unsigned long long __val) |
| 4328 | { |
| 4329 | const auto __len = __detail::__to_chars_len(__val); |
| 4330 | string __str; |
| 4331 | __str.__resize_and_overwrite(__len, [__val](char* __p, size_t __n) { |
| 4332 | __detail::__to_chars_10_impl(__p, __n, __val); |
| 4333 | return __n; |
| 4334 | }); |
| 4335 | return __str; |
| 4336 | } |
| 4337 | |
| 4338 | #if __glibcxx_to_string >= 202306L // C++ >= 26 |
| 4339 | |
| 4340 | [[nodiscard]] |
| 4341 | inline string |
| 4342 | to_string(float __val) |
| 4343 | { |
| 4344 | string __str; |
| 4345 | size_t __len = 15; |
| 4346 | do { |
| 4347 | __str.resize_and_overwrite(__len, |
| 4348 | [__val, &__len] (char* __p, size_t __n) { |
| 4349 | auto [__end, __err] = std::to_chars(__p, __p + __n, __val); |
| 4350 | if (__err == errc{}) [[likely]] |
| 4351 | return __end - __p; |
| 4352 | __len *= 2; |
| 4353 | return __p - __p;; |
| 4354 | }); |
| 4355 | } while (__str.empty()); |
| 4356 | return __str; |
| 4357 | } |
| 4358 | |
| 4359 | [[nodiscard]] |
| 4360 | inline string |
| 4361 | to_string(double __val) |
| 4362 | { |
| 4363 | string __str; |
| 4364 | size_t __len = 15; |
| 4365 | do { |
| 4366 | __str.resize_and_overwrite(__len, |
| 4367 | [__val, &__len] (char* __p, size_t __n) { |
| 4368 | auto [__end, __err] = std::to_chars(__p, __p + __n, __val); |
| 4369 | if (__err == errc{}) [[likely]] |
| 4370 | return __end - __p; |
| 4371 | __len *= 2; |
| 4372 | return __p - __p;; |
| 4373 | }); |
| 4374 | } while (__str.empty()); |
| 4375 | return __str; |
| 4376 | } |
| 4377 | |
| 4378 | [[nodiscard]] |
| 4379 | inline string |
| 4380 | to_string(long double __val) |
| 4381 | { |
| 4382 | string __str; |
| 4383 | size_t __len = 15; |
| 4384 | do { |
| 4385 | __str.resize_and_overwrite(__len, |
| 4386 | [__val, &__len] (char* __p, size_t __n) { |
| 4387 | auto [__end, __err] = std::to_chars(__p, __p + __n, __val); |
| 4388 | if (__err == errc{}) [[likely]] |
| 4389 | return __end - __p; |
| 4390 | __len *= 2; |
| 4391 | return __p - __p;; |
| 4392 | }); |
| 4393 | } while (__str.empty()); |
| 4394 | return __str; |
| 4395 | } |
| 4396 | #elif _GLIBCXX_USE_C99_STDIO1 |
| 4397 | // NB: (v)snprintf vs sprintf. |
| 4398 | |
| 4399 | _GLIBCXX_NODISCARD[[__nodiscard__]] |
| 4400 | inline string |
| 4401 | to_string(float __val) |
| 4402 | { |
| 4403 | const int __n = |
| 4404 | __gnu_cxx::__numeric_traits<float>::__max_exponent10 + 20; |
| 4405 | return __gnu_cxx::__to_xstring<string>(&std::vsnprintf, __n, |
| 4406 | "%f", __val); |
| 4407 | } |
| 4408 | |
| 4409 | _GLIBCXX_NODISCARD[[__nodiscard__]] |
| 4410 | inline string |
| 4411 | to_string(double __val) |
| 4412 | { |
| 4413 | const int __n = |
| 4414 | __gnu_cxx::__numeric_traits<double>::__max_exponent10 + 20; |
| 4415 | return __gnu_cxx::__to_xstring<string>(&std::vsnprintf, __n, |
| 4416 | "%f", __val); |
| 4417 | } |
| 4418 | |
| 4419 | _GLIBCXX_NODISCARD[[__nodiscard__]] |
| 4420 | inline string |
| 4421 | to_string(long double __val) |
| 4422 | { |
| 4423 | const int __n = |
| 4424 | __gnu_cxx::__numeric_traits<long double>::__max_exponent10 + 20; |
| 4425 | return __gnu_cxx::__to_xstring<string>(&std::vsnprintf, __n, |
| 4426 | "%Lf", __val); |
| 4427 | } |
| 4428 | #endif // _GLIBCXX_USE_C99_STDIO |
| 4429 | |
| 4430 | #if defined(_GLIBCXX_USE_WCHAR_T1) && _GLIBCXX_USE_C99_WCHAR1 |
| 4431 | inline int |
| 4432 | stoi(const wstring& __str, size_t* __idx = 0, int __base = 10) |
| 4433 | { return __gnu_cxx::__stoa<long, int>(&std::wcstol, "stoi", __str.c_str(), |
| 4434 | __idx, __base); } |
| 4435 | |
| 4436 | inline long |
| 4437 | stol(const wstring& __str, size_t* __idx = 0, int __base = 10) |
| 4438 | { return __gnu_cxx::__stoa(&std::wcstol, "stol", __str.c_str(), |
| 4439 | __idx, __base); } |
| 4440 | |
| 4441 | inline unsigned long |
| 4442 | stoul(const wstring& __str, size_t* __idx = 0, int __base = 10) |
| 4443 | { return __gnu_cxx::__stoa(&std::wcstoul, "stoul", __str.c_str(), |
| 4444 | __idx, __base); } |
| 4445 | |
| 4446 | inline long long |
| 4447 | stoll(const wstring& __str, size_t* __idx = 0, int __base = 10) |
| 4448 | { return __gnu_cxx::__stoa(&std::wcstoll, "stoll", __str.c_str(), |
| 4449 | __idx, __base); } |
| 4450 | |
| 4451 | inline unsigned long long |
| 4452 | stoull(const wstring& __str, size_t* __idx = 0, int __base = 10) |
| 4453 | { return __gnu_cxx::__stoa(&std::wcstoull, "stoull", __str.c_str(), |
| 4454 | __idx, __base); } |
| 4455 | |
| 4456 | // NB: wcstof vs wcstod. |
| 4457 | inline float |
| 4458 | stof(const wstring& __str, size_t* __idx = 0) |
| 4459 | { return __gnu_cxx::__stoa(&std::wcstof, "stof", __str.c_str(), __idx); } |
| 4460 | |
| 4461 | inline double |
| 4462 | stod(const wstring& __str, size_t* __idx = 0) |
| 4463 | { return __gnu_cxx::__stoa(&std::wcstod, "stod", __str.c_str(), __idx); } |
| 4464 | |
| 4465 | inline long double |
| 4466 | stold(const wstring& __str, size_t* __idx = 0) |
| 4467 | { return __gnu_cxx::__stoa(&std::wcstold, "stold", __str.c_str(), __idx); } |
| 4468 | #endif |
| 4469 | |
| 4470 | #ifdef _GLIBCXX_USE_WCHAR_T1 |
| 4471 | #pragma GCC diagnostic push |
| 4472 | #pragma GCC diagnostic ignored "-Wc++17-extensions" |
| 4473 | _GLIBCXX20_CONSTEXPRconstexpr |
| 4474 | inline void |
| 4475 | __to_wstring_numeric(const char* __s, int __len, wchar_t* __wout) |
| 4476 | { |
| 4477 | // This condition is true if exec-charset and wide-exec-charset share the |
| 4478 | // same values for the ASCII subset or the EBCDIC invariant character set. |
| 4479 | if constexpr (wchar_t('0') == L'0' && wchar_t('-') == L'-' |
| 4480 | && wchar_t('.') == L'.' && wchar_t('e') == L'e') |
| 4481 | { |
| 4482 | for (int __i = 0; __i < __len; ++__i) |
| 4483 | __wout[__i] = (wchar_t) __s[__i]; |
| 4484 | } |
| 4485 | else |
| 4486 | { |
| 4487 | wchar_t __wc[256]; |
| 4488 | for (int __i = '0'; __i <= '9'; ++__i) |
| 4489 | __wc[__i] = L'0' + __i; |
| 4490 | __wc['.'] = L'.'; |
| 4491 | __wc['+'] = L'+'; |
| 4492 | __wc['-'] = L'-'; |
| 4493 | __wc['a'] = L'a'; |
| 4494 | __wc['b'] = L'b'; |
| 4495 | __wc['c'] = L'c'; |
| 4496 | __wc['d'] = L'd'; |
| 4497 | __wc['e'] = L'e'; |
| 4498 | __wc['f'] = L'f'; |
| 4499 | __wc['n'] = L'n'; // for "nan" and "inf" |
| 4500 | __wc['p'] = L'p'; // for hexfloats "0x1p1" |
| 4501 | __wc['x'] = L'x'; |
| 4502 | __wc['A'] = L'A'; |
| 4503 | __wc['B'] = L'B'; |
| 4504 | __wc['C'] = L'C'; |
| 4505 | __wc['D'] = L'D'; |
| 4506 | __wc['E'] = L'E'; |
| 4507 | __wc['F'] = L'F'; |
| 4508 | __wc['N'] = L'N'; |
| 4509 | __wc['P'] = L'P'; |
| 4510 | __wc['X'] = L'X'; |
| 4511 | |
| 4512 | for (int __i = 0; __i < __len; ++__i) |
| 4513 | __wout[__i] = __wc[(int)__s[__i]]; |
| 4514 | } |
| 4515 | } |
| 4516 | |
| 4517 | #if __glibcxx_constexpr_string201907L >= 201907L |
| 4518 | constexpr |
| 4519 | #endif |
| 4520 | inline wstring |
| 4521 | #if __cplusplus202002L >= 201703L |
| 4522 | __to_wstring_numeric(string_view __s) |
| 4523 | #else |
| 4524 | __to_wstring_numeric(const string& __s) |
| 4525 | #endif |
| 4526 | { |
| 4527 | if constexpr (wchar_t('0') == L'0' && wchar_t('-') == L'-' |
| 4528 | && wchar_t('.') == L'.' && wchar_t('e') == L'e') |
| 4529 | return wstring(__s.data(), __s.data() + __s.size()); |
| 4530 | else |
| 4531 | { |
| 4532 | wstring __ws; |
| 4533 | auto __f = __s.data(); |
| 4534 | __ws.__resize_and_overwrite(__s.size(), |
| 4535 | [__f] (wchar_t* __to, int __n) { |
| 4536 | std::__to_wstring_numeric(__f, __n, __to); |
| 4537 | return __n; |
| 4538 | }); |
| 4539 | return __ws; |
| 4540 | } |
| 4541 | } |
| 4542 | #pragma GCC diagnostic pop |
| 4543 | |
| 4544 | _GLIBCXX_NODISCARD[[__nodiscard__]] |
| 4545 | inline wstring |
| 4546 | to_wstring(int __val) |
| 4547 | { return std::__to_wstring_numeric(std::to_string(__val)); } |
| 4548 | |
| 4549 | _GLIBCXX_NODISCARD[[__nodiscard__]] |
| 4550 | inline wstring |
| 4551 | to_wstring(unsigned __val) |
| 4552 | { return std::__to_wstring_numeric(std::to_string(__val)); } |
| 4553 | |
| 4554 | _GLIBCXX_NODISCARD[[__nodiscard__]] |
| 4555 | inline wstring |
| 4556 | to_wstring(long __val) |
| 4557 | { return std::__to_wstring_numeric(std::to_string(__val)); } |
| 4558 | |
| 4559 | _GLIBCXX_NODISCARD[[__nodiscard__]] |
| 4560 | inline wstring |
| 4561 | to_wstring(unsigned long __val) |
| 4562 | { return std::__to_wstring_numeric(std::to_string(__val)); } |
| 4563 | |
| 4564 | _GLIBCXX_NODISCARD[[__nodiscard__]] |
| 4565 | inline wstring |
| 4566 | to_wstring(long long __val) |
| 4567 | { return std::__to_wstring_numeric(std::to_string(__val)); } |
| 4568 | |
| 4569 | _GLIBCXX_NODISCARD[[__nodiscard__]] |
| 4570 | inline wstring |
| 4571 | to_wstring(unsigned long long __val) |
| 4572 | { return std::__to_wstring_numeric(std::to_string(__val)); } |
| 4573 | |
| 4574 | #if __glibcxx_to_string || _GLIBCXX_USE_C99_STDIO1 |
| 4575 | _GLIBCXX_NODISCARD[[__nodiscard__]] |
| 4576 | inline wstring |
| 4577 | to_wstring(float __val) |
| 4578 | { return std::__to_wstring_numeric(std::to_string(__val)); } |
| 4579 | |
| 4580 | _GLIBCXX_NODISCARD[[__nodiscard__]] |
| 4581 | inline wstring |
| 4582 | to_wstring(double __val) |
| 4583 | { return std::__to_wstring_numeric(std::to_string(__val)); } |
| 4584 | |
| 4585 | _GLIBCXX_NODISCARD[[__nodiscard__]] |
| 4586 | inline wstring |
| 4587 | to_wstring(long double __val) |
| 4588 | { return std::__to_wstring_numeric(std::to_string(__val)); } |
| 4589 | #endif |
| 4590 | #endif // _GLIBCXX_USE_WCHAR_T |
| 4591 | |
| 4592 | _GLIBCXX_END_NAMESPACE_CXX11} |
| 4593 | _GLIBCXX_END_NAMESPACE_VERSION |
| 4594 | } // namespace |
| 4595 | |
| 4596 | #endif /* C++11 */ |
| 4597 | |
| 4598 | #if __cplusplus202002L >= 201103L |
| 4599 | |
| 4600 | #include <bits/functional_hash.h> |
| 4601 | |
| 4602 | namespace std _GLIBCXX_VISIBILITY(default)__attribute__ ((__visibility__ ("default"))) |
| 4603 | { |
| 4604 | _GLIBCXX_BEGIN_NAMESPACE_VERSION |
| 4605 | |
| 4606 | // _GLIBCXX_RESOLVE_LIB_DEFECTS |
| 4607 | // 3705. Hashability shouldn't depend on basic_string's allocator |
| 4608 | |
| 4609 | template<typename _CharT, typename _Alloc, |
| 4610 | typename _StrT = basic_string<_CharT, char_traits<_CharT>, _Alloc>> |
| 4611 | struct __str_hash_base |
| 4612 | : public __hash_base<size_t, _StrT> |
| 4613 | { |
| 4614 | [[__nodiscard__]] |
| 4615 | size_t |
| 4616 | operator()(const _StrT& __s) const noexcept |
| 4617 | { return _Hash_impl::hash(__s.data(), __s.length() * sizeof(_CharT)); } |
| 4618 | }; |
| 4619 | |
| 4620 | #ifndef _GLIBCXX_COMPATIBILITY_CXX0X |
| 4621 | /// std::hash specialization for string. |
| 4622 | template<typename _Alloc> |
| 4623 | struct hash<basic_string<char, char_traits<char>, _Alloc>> |
| 4624 | : public __str_hash_base<char, _Alloc> |
| 4625 | { }; |
| 4626 | |
| 4627 | /// std::hash specialization for wstring. |
| 4628 | template<typename _Alloc> |
| 4629 | struct hash<basic_string<wchar_t, char_traits<wchar_t>, _Alloc>> |
| 4630 | : public __str_hash_base<wchar_t, _Alloc> |
| 4631 | { }; |
| 4632 | |
| 4633 | template<typename _Alloc> |
| 4634 | struct __is_fast_hash<hash<basic_string<wchar_t, char_traits<wchar_t>, |
| 4635 | _Alloc>>> |
| 4636 | : std::false_type |
| 4637 | { }; |
| 4638 | #endif /* _GLIBCXX_COMPATIBILITY_CXX0X */ |
| 4639 | |
| 4640 | #ifdef _GLIBCXX_USE_CHAR8_T1 |
| 4641 | /// std::hash specialization for u8string. |
| 4642 | template<typename _Alloc> |
| 4643 | struct hash<basic_string<char8_t, char_traits<char8_t>, _Alloc>> |
| 4644 | : public __str_hash_base<char8_t, _Alloc> |
| 4645 | { }; |
| 4646 | #endif |
| 4647 | |
| 4648 | /// std::hash specialization for u16string. |
| 4649 | template<typename _Alloc> |
| 4650 | struct hash<basic_string<char16_t, char_traits<char16_t>, _Alloc>> |
| 4651 | : public __str_hash_base<char16_t, _Alloc> |
| 4652 | { }; |
| 4653 | |
| 4654 | /// std::hash specialization for u32string. |
| 4655 | template<typename _Alloc> |
| 4656 | struct hash<basic_string<char32_t, char_traits<char32_t>, _Alloc>> |
| 4657 | : public __str_hash_base<char32_t, _Alloc> |
| 4658 | { }; |
| 4659 | |
| 4660 | #if ! _GLIBCXX_INLINE_VERSION0 |
| 4661 | // PR libstdc++/105907 - __is_fast_hash affects unordered container ABI. |
| 4662 | template<> struct __is_fast_hash<hash<string>> : std::false_type { }; |
| 4663 | template<> struct __is_fast_hash<hash<wstring>> : std::false_type { }; |
| 4664 | template<> struct __is_fast_hash<hash<u16string>> : std::false_type { }; |
| 4665 | template<> struct __is_fast_hash<hash<u32string>> : std::false_type { }; |
| 4666 | #ifdef _GLIBCXX_USE_CHAR8_T1 |
| 4667 | template<> struct __is_fast_hash<hash<u8string>> : std::false_type { }; |
| 4668 | #endif |
| 4669 | #else |
| 4670 | // For versioned namespace, assume every std::hash<basic_string<>> is slow. |
| 4671 | template<typename _CharT, typename _Traits, typename _Alloc> |
| 4672 | struct __is_fast_hash<hash<basic_string<_CharT, _Traits, _Alloc>>> |
| 4673 | : std::false_type |
| 4674 | { }; |
| 4675 | #endif |
| 4676 | |
| 4677 | #ifdef __glibcxx_string_udls201304L // C++ >= 14 |
| 4678 | inline namespace literals |
| 4679 | { |
| 4680 | inline namespace string_literals |
| 4681 | { |
| 4682 | #pragma GCC diagnostic push |
| 4683 | #pragma GCC diagnostic ignored "-Wliteral-suffix" |
| 4684 | |
| 4685 | #if __glibcxx_constexpr_string201907L >= 201907L |
| 4686 | # define _GLIBCXX_STRING_CONSTEXPR constexpr |
| 4687 | #else |
| 4688 | # define _GLIBCXX_STRING_CONSTEXPR |
| 4689 | #endif |
| 4690 | |
| 4691 | _GLIBCXX_DEFAULT_ABI_TAG__attribute ((__abi_tag__ ("cxx11"))) _GLIBCXX_STRING_CONSTEXPR |
| 4692 | inline basic_string<char> |
| 4693 | operator""s(const char* __str, size_t __len) |
| 4694 | { return basic_string<char>{__str, __len}; } |
| 4695 | |
| 4696 | _GLIBCXX_DEFAULT_ABI_TAG__attribute ((__abi_tag__ ("cxx11"))) _GLIBCXX_STRING_CONSTEXPR |
| 4697 | inline basic_string<wchar_t> |
| 4698 | operator""s(const wchar_t* __str, size_t __len) |
| 4699 | { return basic_string<wchar_t>{__str, __len}; } |
| 4700 | |
| 4701 | #ifdef _GLIBCXX_USE_CHAR8_T1 |
| 4702 | _GLIBCXX_DEFAULT_ABI_TAG__attribute ((__abi_tag__ ("cxx11"))) _GLIBCXX_STRING_CONSTEXPR |
| 4703 | inline basic_string<char8_t> |
| 4704 | operator""s(const char8_t* __str, size_t __len) |
| 4705 | { return basic_string<char8_t>{__str, __len}; } |
| 4706 | #endif |
| 4707 | |
| 4708 | _GLIBCXX_DEFAULT_ABI_TAG__attribute ((__abi_tag__ ("cxx11"))) _GLIBCXX_STRING_CONSTEXPR |
| 4709 | inline basic_string<char16_t> |
| 4710 | operator""s(const char16_t* __str, size_t __len) |
| 4711 | { return basic_string<char16_t>{__str, __len}; } |
| 4712 | |
| 4713 | _GLIBCXX_DEFAULT_ABI_TAG__attribute ((__abi_tag__ ("cxx11"))) _GLIBCXX_STRING_CONSTEXPR |
| 4714 | inline basic_string<char32_t> |
| 4715 | operator""s(const char32_t* __str, size_t __len) |
| 4716 | { return basic_string<char32_t>{__str, __len}; } |
| 4717 | |
| 4718 | #undef _GLIBCXX_STRING_CONSTEXPR |
| 4719 | #pragma GCC diagnostic pop |
| 4720 | } // inline namespace string_literals |
| 4721 | } // inline namespace literals |
| 4722 | #endif // __glibcxx_string_udls |
| 4723 | |
| 4724 | #if __cplusplus202002L >= 201703L |
| 4725 | namespace __detail::__variant |
| 4726 | { |
| 4727 | template<typename> struct _Never_valueless_alt; // see <variant> |
| 4728 | |
| 4729 | // Provide the strong exception-safety guarantee when emplacing a |
| 4730 | // basic_string into a variant, but only if moving the string cannot throw. |
| 4731 | template<typename _Tp, typename _Traits, typename _Alloc> |
| 4732 | struct _Never_valueless_alt<std::basic_string<_Tp, _Traits, _Alloc>> |
| 4733 | : __and_< |
| 4734 | is_nothrow_move_constructible<std::basic_string<_Tp, _Traits, _Alloc>>, |
| 4735 | is_nothrow_move_assignable<std::basic_string<_Tp, _Traits, _Alloc>> |
| 4736 | >::type |
| 4737 | { }; |
| 4738 | } // namespace __detail::__variant |
| 4739 | #endif // C++17 |
| 4740 | |
| 4741 | _GLIBCXX_END_NAMESPACE_VERSION |
| 4742 | } // namespace std |
| 4743 | |
| 4744 | #endif // C++11 |
| 4745 | |
| 4746 | #endif /* _BASIC_STRING_H */ |