30#ifndef _GLIBCXX_EXPERIMENTAL_FS_PATH_H
31#define _GLIBCXX_EXPERIMENTAL_FS_PATH_H 1
33#if __cplusplus < 201103L
47#if __cplusplus == 201402L
51#if defined(_WIN32) && !defined(__CYGWIN__)
52# define _GLIBCXX_FILESYSTEM_IS_WINDOWS 1
56namespace std _GLIBCXX_VISIBILITY(default)
58_GLIBCXX_BEGIN_NAMESPACE_VERSION
66_GLIBCXX_BEGIN_NAMESPACE_CXX11
68#if __cplusplus == 201402L
70#elif __cplusplus > 201402L
81 template<
typename _CharT,
82 typename _Ch =
typename remove_const<_CharT>::type>
83 using __is_encoded_char
84 = __or_<is_same<_Ch, char>,
85 is_same<_Ch, wchar_t>,
86#ifdef _GLIBCXX_USE_CHAR8_T
87 is_same<_Ch, char8_t>,
89 is_same<_Ch, char16_t>,
90 is_same<_Ch, char32_t>>;
92 template<
typename _Iter,
94 using __is_path_iter_src
95 = __and_<__is_encoded_char<typename _Iter_traits::value_type>,
97 typename _Iter_traits::iterator_category>>;
99 template<
typename _Iter>
100 static __is_path_iter_src<_Iter>
101 __is_path_src(_Iter,
int);
103 template<
typename _CharT,
typename _Traits,
typename _Alloc>
104 static __is_encoded_char<_CharT>
105 __is_path_src(
const basic_string<_CharT, _Traits, _Alloc>&,
int);
107#if __cplusplus >= 201402L
108 template<
typename _CharT,
typename _Traits>
109 static __is_encoded_char<_CharT>
110 __is_path_src(
const basic_string_view<_CharT, _Traits>&,
int);
113 template<
typename _Unknown>
115 __is_path_src(
const _Unknown&, ...);
117 template<
typename _Tp1,
typename _Tp2>
118 struct __constructible_from;
120 template<
typename _Iter>
121 struct __constructible_from<_Iter, _Iter>
122 : __is_path_iter_src<_Iter>
125 template<
typename _Source>
126 struct __constructible_from<_Source, void>
127 : decltype(__is_path_src(std::declval<const _Source&>(), 0))
130 template<
typename _Tp1,
typename _Tp2 = void,
131 typename _Tp1_nocv =
typename remove_cv<_Tp1>::type,
132 typename _Tp1_noptr =
typename remove_pointer<_Tp1>::type>
133 using _Path =
typename
135 __not_<is_void<_Tp1_noptr>>,
136 __constructible_from<_Tp1, _Tp2>>::value,
139 template<
typename _Source>
141 _S_range_begin(_Source __begin) {
return __begin; }
143 struct __nul_terminated { };
145 template<
typename _Source>
146 inline __nul_terminated
147 _S_range_end(_Source) {
return {}; }
149 template<
typename _CharT,
typename _Traits,
typename _Alloc>
151 _S_range_begin(
const basic_string<_CharT, _Traits, _Alloc>& __str)
152 {
return __str.data(); }
154 template<
typename _CharT,
typename _Traits,
typename _Alloc>
156 _S_range_end(
const basic_string<_CharT, _Traits, _Alloc>& __str)
157 {
return __str.data() + __str.size(); }
159#if __cplusplus >= 201402L
160 template<
typename _CharT,
typename _Traits>
162 _S_range_begin(
const basic_string_view<_CharT, _Traits>& __str)
163 {
return __str.data(); }
165 template<
typename _CharT,
typename _Traits>
167 _S_range_end(
const basic_string_view<_CharT, _Traits>& __str)
168 {
return __str.data() + __str.size(); }
171 template<
typename _Tp,
174 typename _UnqualVal =
typename std::remove_const<_Val>::type>
179 template<
typename _Tp,
182 typename _UnqualVal =
typename std::remove_const<_Val>::type>
186#ifdef _GLIBCXX_USE_CHAR8_T
189 >::value, _UnqualVal>::type;
204#ifdef _GLIBCXX_FILESYSTEM_IS_WINDOWS
205 typedef wchar_t value_type;
206 static constexpr value_type preferred_separator =
L'\\';
208 typedef char value_type;
209 static constexpr value_type preferred_separator =
'/';
222 typename _Require = __detail::_Path<_Source>>
224 : _M_pathname(_S_convert(__detail::_S_range_begin(
__source),
226 { _M_split_cmpts(); }
229 typename _Require = __detail::_Path<_InputIterator, _InputIterator>>
231 : _M_pathname(_S_convert(__first, __last))
232 { _M_split_cmpts(); }
235 typename _Require = __detail::_Path<_Source>,
236 typename _Require2 = __detail::__value_type_is_char<_Source>>
238 : _M_pathname(_S_convert_loc(__detail::_S_range_begin(
__source),
240 { _M_split_cmpts(); }
243 typename _Require = __detail::_Path<_InputIterator, _InputIterator>,
244 typename _Require2 = __detail::__value_type_is_char<_InputIterator>>
246 : _M_pathname(_S_convert_loc(__first, __last,
__loc))
247 { _M_split_cmpts(); }
254 path& operator=(
path&& __p)
noexcept;
258 template<
typename _Source>
259 __detail::_Path<_Source>&
263 template<
typename _Source>
264 __detail::_Path<_Source>&
268 template<
typename _InputIterator>
269 __detail::_Path<_InputIterator, _InputIterator>&
271 {
return *
this =
path(__first, __last); }
275 path& operator/=(
const path& __p) {
return _M_append(__p._M_pathname); }
277 template<
typename _Source>
278 __detail::_Path<_Source>&
282 template<
typename _Source>
283 __detail::_Path<_Source>&
286 return _M_append(_S_convert(__detail::_S_range_begin(
__source),
290 template<
typename _InputIterator>
291 __detail::_Path<_InputIterator, _InputIterator>&
293 {
return _M_append(_S_convert(__first, __last)); }
298 path& operator+=(
const string_type& __x);
299 path& operator+=(
const value_type* __x);
300 path& operator+=(value_type __x);
301#if __cplusplus >= 201402L
305 template<
typename _Source>
306 __detail::_Path<_Source>&
307 operator+=(
_Source const& __x) {
return concat(__x); }
309 template<
typename _CharT>
310 __detail::_Path<_CharT*, _CharT*>&
311 operator+=(_CharT __x);
313 template<
typename _Source>
314 __detail::_Path<_Source>&
317 return *
this += _S_convert(__detail::_S_range_begin(__x),
318 __detail::_S_range_end(__x));
321 template<
typename _InputIterator>
322 __detail::_Path<_InputIterator, _InputIterator>&
324 {
return *
this += _S_convert(__first, __last); }
328 void clear()
noexcept { _M_pathname.clear(); _M_split_cmpts(); }
330 path& make_preferred();
331 path& remove_filename();
339 const string_type& native()
const noexcept {
return _M_pathname; }
340 const value_type* c_str()
const noexcept {
return _M_pathname.c_str(); }
341 operator string_type()
const {
return _M_pathname; }
343 template<
typename _CharT,
typename _Traits = std::
char_traits<_CharT>,
344 typename _Allocator = std::allocator<_CharT>>
349#if _GLIBCXX_USE_WCHAR_T
352#ifdef _GLIBCXX_USE_CHAR8_T
354 std::u8string u8string()
const;
362 template<
typename _CharT,
typename _Traits = std::
char_traits<_CharT>,
363 typename _Allocator = std::allocator<_CharT>>
368#if _GLIBCXX_USE_WCHAR_T
371#ifdef _GLIBCXX_USE_CHAR8_T
373 std::u8string generic_u8string()
const;
382 int compare(
const path& __p)
const noexcept;
383 int compare(
const string_type&
__s)
const;
384 int compare(
const value_type*
__s)
const;
385#if __cplusplus >= 201402L
391 path root_name()
const;
392 path root_directory()
const;
393 path root_path()
const;
394 path relative_path()
const;
395 path parent_path()
const;
396 path filename()
const;
398 path extension()
const;
402 _GLIBCXX_NODISCARD
bool empty()
const noexcept {
return _M_pathname.empty(); }
403 bool has_root_name()
const;
404 bool has_root_directory()
const;
405 bool has_root_path()
const;
406 bool has_relative_path()
const;
407 bool has_parent_path()
const;
408 bool has_filename()
const;
409 bool has_stem()
const;
410 bool has_extension()
const;
411 bool is_absolute()
const;
412 bool is_relative()
const {
return !is_absolute(); }
426 =
typename std::remove_cv<typename _Traits::value_type>::type>
438 enum class _Type :
unsigned char {
439 _Multi, _Root_name, _Root_dir, _Filename
444 enum class _Split { _Stem, _Extension };
446 path& _M_append(
const string_type&
__str)
448 if (!_M_pathname.empty() && !_S_is_dir_sep(_M_pathname.back())
449 && !
__str.empty() && !_S_is_dir_sep(
__str.front()))
450 _M_pathname += preferred_separator;
451 _M_pathname +=
__str;
458 template<
typename _CharT>
462 _S_convert(value_type*
__src, __detail::__nul_terminated)
463 {
return string_type(
__src); }
466 _S_convert(
const value_type*
__src, __detail::__nul_terminated)
467 {
return string_type(
__src); }
469 template<
typename _Iter>
471 _S_convert(_Iter __first, _Iter __last)
475 _S_convert(__first, __last);
478 template<
typename _InputIterator>
483 return _S_convert(
__s.c_str(),
__s.c_str() +
__s.size());
487 _S_convert_loc(
const char* __first,
const char* __last,
493 return _S_convert_loc(
const_cast<const char*
>(__first),
494 const_cast<const char*
>(__last),
__loc);
497 template<
typename _Iter>
505 template<
typename _InputIterator>
511 return _S_convert_loc(
__s.data(),
__s.data() +
__s.size(),
__loc);
514 static bool _S_is_dir_sep(value_type
__ch)
516#ifdef _GLIBCXX_FILESYSTEM_IS_WINDOWS
517 return __ch ==
L'/' ||
__ch == preferred_separator;
523 void _M_split_cmpts();
525 void _M_add_root_name(
size_t __n);
526 void _M_add_root_dir(
size_t __pos);
527 void _M_add_filename(
size_t __pos,
size_t __n);
529 string_type _M_pathname;
532 using _List = _GLIBCXX_STD_C::vector<_Cmpt>;
534 _Type _M_type = _Type::_Multi;
540#if __cpp_concepts >= 201907L
550 size_t hash_value(
const path& __p)
noexcept;
553 inline bool operator<(
const path&
__lhs,
const path&
__rhs)
noexcept;
556 inline bool operator<=(
const path&
__lhs,
const path&
__rhs)
noexcept
560 inline bool operator>(
const path& __lhs,
const path& __rhs)
noexcept
561 {
return __rhs < __lhs; }
564 inline bool operator>=(
const path& __lhs,
const path& __rhs)
noexcept
565 {
return !(__lhs < __rhs); }
568 inline bool operator==(
const path& __lhs,
const path& __rhs)
noexcept;
571 inline bool operator!=(
const path& __lhs,
const path& __rhs)
noexcept
572 {
return !(__lhs == __rhs); }
575 inline path
operator/(
const path& __lhs,
const path& __rhs)
577 path __result(__lhs);
583 template<
typename _CharT,
typename _Traits>
584 basic_ostream<_CharT, _Traits>&
585 operator<<(basic_ostream<_CharT, _Traits>& __os,
const path& __p)
587 auto __tmp = __p.string<_CharT, _Traits>();
588 using __quoted_string
590 __os << __quoted_string{__tmp, _CharT(
'"'), _CharT(
'\\')};
595 template<
typename _CharT,
typename _Traits>
596 basic_istream<_CharT, _Traits>&
597 operator>>(basic_istream<_CharT, _Traits>& __is, path& __p)
599 basic_string<_CharT, _Traits> __tmp;
600 using __quoted_string
602 if (__is >> __quoted_string{ __tmp, _CharT(
'"'), _CharT(
'\\') })
608#ifdef _GLIBCXX_FILESYSTEM_IS_WINDOWS
609 template<
typename _InputIterator>
611 __u8path(_InputIterator __first, _InputIterator __last,
char)
615 path::string_type __tmp;
617 const char*
const __ptr = __u8str.
data();
618 if (__str_codecvt_in_all(__ptr, __ptr + __u8str.size(), __tmp, __cvt))
619 return path{ __tmp };
620 _GLIBCXX_THROW_OR_ABORT(filesystem_error(
621 "Cannot convert character sequence",
625#ifdef _GLIBCXX_USE_CHAR8_T
626 template<
typename _InputIterator>
628 __u8path(_InputIterator __first, _InputIterator __last,
char8_t)
630 return path{ __first, __last };
635 template<
typename _InputIterator,
636 typename _Require = __detail::_Path<_InputIterator, _InputIterator>,
638 __detail::__value_type_is_char_or_char8_t<_InputIterator>>
640 u8path(_InputIterator __first, _InputIterator __last)
642#ifdef _GLIBCXX_FILESYSTEM_IS_WINDOWS
643 return __u8path(__first, __last, _CharT{});
645 return path{ __first, __last };
650#ifdef _GLIBCXX_FILESYSTEM_IS_WINDOWS
652 __u8path(
const string& __s,
char)
654 return filesystem::u8path(__s.data(), __s.data() + __s.size());
657 template<
typename _Source>
658 inline __enable_if_t<is_convertible<const _Source&, string>::value, path>
659 __u8path(
const _Source& __source,
char)
662 return filesystem::u8path(__s.
data(), __s.
data() + __s.
size());
665 template<
typename _Source>
666 inline __enable_if_t<!is_convertible<const _Source&, string>::value, path>
667 __u8path(
const _Source& __source,
char)
669 std::string __s = path::_S_string_from_iter(__source);
670 return filesystem::u8path(__s.
data(), __s.
data() + __s.
size());
673#ifdef _GLIBCXX_USE_CHAR8_T
674 template<
typename _Source>
676 __u8path(
const _Source& __source,
char8_t)
678 return path{ __source };
683 template<
typename _Source,
684 typename _Require = __detail::_Path<_Source>,
686 __detail::__value_type_is_char_or_char8_t<_Source>>
688 u8path(
const _Source& __source)
690#ifdef _GLIBCXX_FILESYSTEM_IS_WINDOWS
691 return __u8path(__source, _CharT{});
693 return path{ __source };
717 const path& path1()
const noexcept {
return _M_path1; }
718 const path& path2()
const noexcept {
return _M_path2; }
719 const char*
what() const noexcept {
return _M_what.
c_str(); }
730 struct path::_Cmpt :
path
735 _Cmpt() : _M_pos(-1) { }
742 struct path::_Cvt<path::value_type>
747 using __codecvt_utf8_to_wide = _Cvt;
749 template<
typename _WStr>
751 __str_codecvt_in_all(
const char*,
const char*,
752 _WStr&, __codecvt_utf8_to_wide&)
noexcept
755 template<
typename _Iter>
757 _S_convert(_Iter __first, _Iter __last)
758 {
return string_type{__first, __last}; }
762 template<
typename _CharT>
768 using __codecvt_utf8_to_wchar
769 = __conditional_t<
sizeof(wchar_t) ==
sizeof(
char32_t),
775 struct __codecvt_utf8_to_utfNN :
std::codecvt<_CharT, char, mbstate_t>
780 using __codecvt_utf8_to_wide
781 = __conditional_t<is_same<_CharT, wchar_t>::value,
782 __codecvt_utf8_to_wchar,
783 __codecvt_utf8_to_utfNN>;
785#ifdef _GLIBCXX_FILESYSTEM_IS_WINDOWS
786#ifdef _GLIBCXX_USE_CHAR8_T
788 _S_wconvert(
const char8_t* __f,
const char8_t* __l,
const char8_t*)
790 const char* __f2 = (
const char*)__f;
791 const char* __l2 = (
const char*)__l;
794 if (__str_codecvt_in_all(__f2, __l2, __wstr, __wcvt))
800 _S_wconvert(
const char* __f,
const char* __l,
const char*)
804 if (__str_codecvt_in_all(__f, __l, __wstr, __cvt))
806 _GLIBCXX_THROW_OR_ABORT(filesystem_error(
807 "Cannot convert character sequence",
812 _S_wconvert(
const _CharT* __f,
const _CharT* __l,
const void*)
814 __codecvt_utf8_to_wide __cvt;
816 if (__str_codecvt_out_all(__f, __l, __str, __cvt))
818 const char* __f2 = __str.
data();
819 const char* __l2 = __f2 + __str.
size();
822 if (__str_codecvt_in_all(__f2, __l2, __wstr, __wcvt))
825 _GLIBCXX_THROW_OR_ABORT(filesystem_error(
826 "Cannot convert character sequence",
831 _S_convert(
const _CharT* __f,
const _CharT* __l)
833 return _S_wconvert(__f, __l, (
const _CharT*)
nullptr);
837 _S_convert(
const _CharT* __f,
const _CharT* __l)
839#ifdef _GLIBCXX_USE_CHAR8_T
840 if constexpr (is_same<_CharT, char8_t>::value)
841 return string_type(__f, __l);
845 __codecvt_utf8_to_wide __cvt;
847 if (__str_codecvt_out_all(__f, __l, __str, __cvt))
849 _GLIBCXX_THROW_OR_ABORT(filesystem_error(
850 "Cannot convert character sequence",
857 _S_convert(_CharT* __f, _CharT* __l)
859 return _S_convert(
const_cast<const _CharT*
>(__f),
860 const_cast<const _CharT*
>(__l));
863 template<
typename _Iter>
865 _S_convert(_Iter __first, _Iter __last)
868 return _S_convert(__str.
data(), __str.
data() + __str.
size());
871 template<
typename _Iter,
typename _Cont>
873 _S_convert(__gnu_cxx::__normal_iterator<_Iter, _Cont> __first,
874 __gnu_cxx::__normal_iterator<_Iter, _Cont> __last)
875 {
return _S_convert(__first.base(), __last.base()); }
883 using difference_type = std::ptrdiff_t;
889 iterator() noexcept : _M_path(
nullptr), _M_cur(), _M_at_end() { }
900 {
auto __tmp = *
this; ++*
this;
return __tmp; }
905 {
auto __tmp = *
this; --*
this;
return __tmp; }
919 : _M_path(
__path), _M_cur(__iter), _M_at_end()
923 : _M_path(
__path), _M_cur(), _M_at_end(__at_end)
926 bool _M_equals(
iterator)
const noexcept;
929 path::_List::const_iterator _M_cur;
934 path::path() noexcept =
default;
941 : _M_pathname(
std::
move(__p._M_pathname)),
942 _M_cmpts(__p._M_cmpts),
949 { _M_split_cmpts(); }
952 path::path(string_type
__str, _Type __type)
953 : _M_pathname(
__str), _M_type(__type)
955 __glibcxx_assert(!empty());
956 __glibcxx_assert(_M_type != _Type::_Multi);
960 path::~path() =
default;
963 path::operator=(
const path& __p) =
default;
966 path::operator=(path&& __p)
noexcept
968 _M_pathname =
std::move(__p._M_pathname);
970 _M_type = __p._M_type;
976 path::operator=(string_type&&
__source)
980 path::assign(string_type&& __source)
981 {
return *
this = path(
std::move(__source)); }
984 path::operator+=(
const path& __p)
986 return operator+=(__p.native());
990 path::operator+=(
const string_type& __x)
998 path::operator+=(
const value_type* __x)
1006 path::operator+=(value_type __x)
1013#if __cplusplus >= 201402L
1015 path::operator+=(basic_string_view<value_type> __x)
1017 _M_pathname.append(__x.data(), __x.size());
1023 template<
typename _CharT>
1024 inline __detail::_Path<_CharT*, _CharT*>&
1025 path::operator+=(_CharT __x)
1028 return concat(__addr, __addr + 1);
1032 path::make_preferred()
1034#ifdef _GLIBCXX_FILESYSTEM_IS_WINDOWS
1035 std::replace(_M_pathname.begin(), _M_pathname.end(), L
'/',
1036 preferred_separator);
1041 inline void path::swap(path& __rhs)
noexcept
1043 _M_pathname.swap(__rhs._M_pathname);
1044 _M_cmpts.swap(__rhs._M_cmpts);
1048 template<
typename _CharT,
typename _Traits,
typename _Allocator>
1050 path::string(
const _Allocator& __a)
const
1052 if _GLIBCXX17_CONSTEXPR (is_same<_CharT, value_type>::value)
1053 return { _M_pathname.begin(), _M_pathname.end(), __a };
1055 using _WString = basic_string<_CharT, _Traits, _Allocator>;
1057 const value_type* __first = _M_pathname.data();
1058 const value_type* __last = __first + _M_pathname.size();
1060#ifdef _GLIBCXX_FILESYSTEM_IS_WINDOWS
1061 using _CharAlloc = __alloc_rebind<_Allocator, char>;
1062 using _String = basic_string<char, char_traits<char>, _CharAlloc>;
1066 codecvt_utf8_utf16<value_type> __cvt;
1067 _String __u8str{_CharAlloc{__a}};
1068 if (__str_codecvt_out_all(__first, __last, __u8str, __cvt))
1073 operator()(
const _String& __from, _String&,
true_type)
1077 operator()(
const _String& __from, _WString& __to,
false_type)
1079#ifdef _GLIBCXX_USE_CHAR8_T
1080 if constexpr (is_same<_CharT, char8_t>::value)
1082 __to.assign(__from.begin(), __from.end());
1089 typename path::_Cvt<_CharT>::__codecvt_utf8_to_wide __cvt;
1090 const char* __f = __from.data();
1091 const char* __l = __f + __from.size();
1092 if (__str_codecvt_in_all(__f, __l, __to, __cvt))
1098 _WString __wstr(__a);
1099 if (
auto* __p = __dispatch(__u8str, __wstr, is_same<_CharT, char>{}))
1103#ifdef _GLIBCXX_USE_CHAR8_T
1104 if constexpr (is_same<_CharT, char8_t>::value)
1105 return _WString(__first, __last, __a);
1109 typename path::_Cvt<_CharT>::__codecvt_utf8_to_wide __cvt;
1110 _WString __wstr(__a);
1111 if (__str_codecvt_in_all(__first, __last, __wstr, __cvt))
1115 _GLIBCXX_THROW_OR_ABORT(filesystem_error(
1116 "Cannot convert character sequence",
1121 path::string()
const {
return string<char>(); }
1123#if _GLIBCXX_USE_WCHAR_T
1125 path::wstring()
const {
return string<wchar_t>(); }
1128#ifdef _GLIBCXX_USE_CHAR8_T
1129 inline std::u8string
1130 path::u8string()
const {
return string<char8_t>(); }
1133 path::u8string()
const
1135#ifdef _GLIBCXX_FILESYSTEM_IS_WINDOWS
1139 const value_type* __first = _M_pathname.data();
1140 const value_type* __last = __first + _M_pathname.size();
1141 if (__str_codecvt_out_all(__first, __last, __str, __cvt))
1143 _GLIBCXX_THROW_OR_ABORT(filesystem_error(
1144 "Cannot convert character sequence",
1153 path::u16string()
const {
return string<char16_t>(); }
1156 path::u32string()
const {
return string<char32_t>(); }
1158 template<
typename _CharT,
typename _Traits,
typename _Allocator>
1160 path::generic_string(
const _Allocator& __a)
const
1162#ifdef _GLIBCXX_FILESYSTEM_IS_WINDOWS
1163 const _CharT __slash = is_same<_CharT, wchar_t>::value
1167 const _CharT __slash = _CharT(
'/');
1169 basic_string<_CharT, _Traits, _Allocator> __str(__a);
1170 __str.
reserve(_M_pathname.size());
1171 bool __add_slash =
false;
1172 for (
auto& __elem : *this)
1174 if (__elem._M_type == _Type::_Root_dir)
1181 __str += __elem.string<_CharT, _Traits, _Allocator>(__a);
1182 __add_slash = __elem._M_type == _Type::_Filename;
1188 path::generic_string()
const {
return generic_string<char>(); }
1190#if _GLIBCXX_USE_WCHAR_T
1192 path::generic_wstring()
const {
return generic_string<wchar_t>(); }
1195#ifdef _GLIBCXX_USE_CHAR8_T
1196 inline std::u8string
1197 path::generic_u8string()
const {
return generic_string<char8_t>(); }
1200 path::generic_u8string()
const {
return generic_string<char>(); }
1204 path::generic_u16string()
const {
return generic_string<char16_t>(); }
1207 path::generic_u32string()
const {
return generic_string<char32_t>(); }
1210 path::compare(
const string_type& __s)
const {
return compare(path(__s)); }
1213 path::compare(
const value_type* __s)
const {
return compare(path(__s)); }
1215#if __cplusplus >= 201402L
1217 path::compare(basic_string_view<value_type> __s)
const
1218 {
return compare(path(__s)); }
1222 path::filename()
const {
return empty() ? path() : *--end(); }
1227 auto ext = _M_find_extension();
1228 if (ext.first && ext.second != 0)
1229 return path{ext.first->substr(0, ext.second)};
1234 path::extension()
const
1236 auto ext = _M_find_extension();
1238 return path{ext.first->substr(ext.second)};
1243 path::has_stem()
const
1245 auto ext = _M_find_extension();
1246 return ext.first && ext.second != 0;
1250 path::has_extension()
const
1252 auto ext = _M_find_extension();
1257 path::is_absolute()
const
1259#ifdef _GLIBCXX_FILESYSTEM_IS_WINDOWS
1260 return has_root_name() && has_root_directory();
1262 return has_root_directory();
1266 inline path::iterator
1267 path::begin() const noexcept
1269 if (_M_type == _Type::_Multi)
1270 return iterator(
this, _M_cmpts.begin());
1271 return iterator(
this,
false);
1274 inline path::iterator
1275 path::end() const noexcept
1277 if (_M_type == _Type::_Multi)
1278 return iterator(
this, _M_cmpts.end());
1279 return iterator(
this,
true);
1282 inline path::iterator&
1283 path::iterator::operator++() noexcept
1285 __glibcxx_assert(_M_path !=
nullptr);
1286 if (_M_path->_M_type == _Type::_Multi)
1288 __glibcxx_assert(_M_cur != _M_path->_M_cmpts.end());
1293 __glibcxx_assert(!_M_at_end);
1299 inline path::iterator&
1300 path::iterator::operator--() noexcept
1302 __glibcxx_assert(_M_path !=
nullptr);
1303 if (_M_path->_M_type == _Type::_Multi)
1305 __glibcxx_assert(_M_cur != _M_path->_M_cmpts.begin());
1310 __glibcxx_assert(_M_at_end);
1316 inline path::iterator::reference
1317 path::iterator::operator*() const noexcept
1319 __glibcxx_assert(_M_path !=
nullptr);
1320 if (_M_path->_M_type == _Type::_Multi)
1322 __glibcxx_assert(_M_cur != _M_path->_M_cmpts.end());
1329 path::iterator::_M_equals(iterator __rhs)
const noexcept
1331 if (_M_path != __rhs._M_path)
1333 if (_M_path ==
nullptr)
1335 if (_M_path->_M_type == path::_Type::_Multi)
1336 return _M_cur == __rhs._M_cur;
1337 return _M_at_end == __rhs._M_at_end;
1344 inline bool operator<(
const path& __lhs,
const path& __rhs)
noexcept
1345 {
return __lhs.compare(__rhs) < 0; }
1347 inline bool operator==(
const path& __lhs,
const path& __rhs)
noexcept
1348 {
return __lhs.compare(__rhs) == 0; }
1351_GLIBCXX_END_NAMESPACE_CXX11
1356_GLIBCXX_END_NAMESPACE_VERSION
constexpr complex< _Tp > operator/(const complex< _Tp > &__x, const complex< _Tp > &__y)
Return new complex value x divided by y.
error_code make_error_code(future_errc __errc) noexcept
Overload of make_error_code for future_errc.
integral_constant< bool, true > true_type
The type used as a compile-time boolean with true value.
integral_constant< bool, false > false_type
The type used as a compile-time boolean with false value.
constexpr std::remove_reference< _Tp >::type && move(_Tp &&__t) noexcept
Convert a value to an rvalue.
void swap(any &__x, any &__y) noexcept
Exchange the states of two any objects.
constexpr _Tp * __addressof(_Tp &__r) noexcept
Same as C++11 std::addressof.
basic_string< char > string
A string of char.
basic_string< char32_t > u32string
A string of char32_t.
basic_string< char16_t > u16string
A string of char16_t.
basic_string< wchar_t > wstring
A string of wchar_t.
ISO C++ entities toplevel namespace is std.
constexpr auto empty(const _Container &__cont) noexcept(noexcept(__cont.empty())) -> decltype(__cont.empty())
Return whether a container is empty.
std::basic_istream< _CharT, _Traits > & operator>>(std::basic_istream< _CharT, _Traits > &__is, bitset< _Nb > &__x)
Global I/O operators for bitsets.
std::basic_ostream< _CharT, _Traits > & operator<<(std::basic_ostream< _CharT, _Traits > &__os, const bitset< _Nb > &__x)
Global I/O operators for bitsets.
A non-owning reference to a string.
An exception type that includes an error_code value.
Define a member typedef type only if a boolean constant is true.
Primary class template codecvt.
const _CharT * data() const noexcept
Return const pointer to contents.
void reserve(size_type __res_arg)
Attempt to preallocate enough memory for specified number of characters.
size_type size() const noexcept
Returns the number of characters in the string, not including any null-termination.
const _CharT * c_str() const noexcept
Return const pointer to null-terminated contents.
static const size_type npos
Value returned by various member functions when they fail.
Traits class for iterators.
Container class for localization functionality.
Struct for delimited strings.
Bidirectional iterators support a superset of forward iterator operations.
Exception type thrown by the Filesystem TS library.
const char * what() const noexcept
An iterator for the components of a path.
A non-owning reference to a string.
[concept.same], concept same_as