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 =
'/';
219 path(string_type&& __source);
221 template<
typename _Source,
222 typename _Require = __detail::_Path<_Source>>
223 path(_Source
const& __source)
224 : _M_pathname(_S_convert(__detail::_S_range_begin(__source),
225 __detail::_S_range_end(__source)))
226 { _M_split_cmpts(); }
228 template<
typename _InputIterator,
229 typename _Require = __detail::_Path<_InputIterator, _InputIterator>>
230 path(_InputIterator __first, _InputIterator __last)
231 : _M_pathname(_S_convert(__first, __last))
232 { _M_split_cmpts(); }
234 template<
typename _Source,
235 typename _Require = __detail::_Path<_Source>,
236 typename _Require2 = __detail::__value_type_is_char<_Source>>
237 path(_Source
const& __source,
const locale& __loc)
238 : _M_pathname(_S_convert_loc(__detail::_S_range_begin(__source),
239 __detail::_S_range_end(__source), __loc))
240 { _M_split_cmpts(); }
242 template<
typename _InputIterator,
243 typename _Require = __detail::_Path<_InputIterator, _InputIterator>,
244 typename _Require2 = __detail::__value_type_is_char<_InputIterator>>
245 path(_InputIterator __first, _InputIterator __last,
const locale& __loc)
246 : _M_pathname(_S_convert_loc(__first, __last, __loc))
247 { _M_split_cmpts(); }
254 path& operator=(
path&& __p)
noexcept;
255 path& operator=(string_type&& __source);
256 path& assign(string_type&& __source);
258 template<
typename _Source>
259 __detail::_Path<_Source>&
260 operator=(_Source
const& __source)
261 {
return *
this =
path(__source); }
263 template<
typename _Source>
264 __detail::_Path<_Source>&
265 assign(_Source
const& __source)
266 {
return *
this =
path(__source); }
268 template<
typename _InputIterator>
269 __detail::_Path<_InputIterator, _InputIterator>&
270 assign(_InputIterator __first, _InputIterator __last)
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>&
279 operator/=(_Source
const& __source)
280 {
return append(__source); }
282 template<
typename _Source>
283 __detail::_Path<_Source>&
284 append(_Source
const& __source)
286 return _M_append(_S_convert(__detail::_S_range_begin(__source),
287 __detail::_S_range_end(__source)));
290 template<
typename _InputIterator>
291 __detail::_Path<_InputIterator, _InputIterator>&
292 append(_InputIterator __first, _InputIterator __last)
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>&
315 concat(_Source
const& __x)
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>&
323 concat(_InputIterator __first, _InputIterator __last)
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();
332 path& replace_filename(
const path& __replacement);
333 path& replace_extension(
const path& __replacement =
path());
335 void swap(
path& __rhs)
noexcept;
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>>
346 string(
const _Allocator& __a = _Allocator())
const;
349#if _GLIBCXX_USE_WCHAR_T
352#ifdef _GLIBCXX_USE_CHAR8_T
353 __attribute__((__abi_tag__(
"__u8")))
354 std::u8string u8string()
const;
362 template<
typename _CharT,
typename _Traits = std::
char_traits<_CharT>,
363 typename _Allocator = std::allocator<_CharT>>
365 generic_string(
const _Allocator& __a = _Allocator())
const;
368#if _GLIBCXX_USE_WCHAR_T
371#ifdef _GLIBCXX_USE_CHAR8_T
372 __attribute__((__abi_tag__(
"__u8")))
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(); }
423 template<
typename _InputIterator,
426 =
typename std::remove_cv<typename _Traits::value_type>::type>
428 _S_string_from_iter(_InputIterator __source)
431 for (_CharT __ch = *__source; __ch != _CharT(); __ch = *++__source)
438 enum class _Type :
unsigned char {
439 _Multi, _Root_name, _Root_dir, _Filename
442 path(string_type __str, _Type __type);
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)
474 return _Cvt<typename remove_cv<__value_type>::type>::
475 _S_convert(__first, __last);
478 template<
typename _InputIterator>
480 _S_convert(_InputIterator __src, __detail::__nul_terminated)
482 auto __s = _S_string_from_iter(__src);
483 return _S_convert(__s.c_str(), __s.c_str() + __s.size());
487 _S_convert_loc(
const char* __first,
const char* __last,
491 _S_convert_loc(
char* __first,
char* __last,
const std::locale& __loc)
493 return _S_convert_loc(
const_cast<const char*
>(__first),
494 const_cast<const char*
>(__last), __loc);
497 template<
typename _Iter>
499 _S_convert_loc(_Iter __first, _Iter __last,
const std::locale& __loc)
502 return _S_convert_loc(__str.
data(), __str.
data()+__str.
size(), __loc);
505 template<
typename _InputIterator>
507 _S_convert_loc(_InputIterator __src, __detail::__nul_terminated,
510 const std::string __s = _S_string_from_iter(__src);
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 inline void swap(
path& __lhs,
path& __rhs)
noexcept { __lhs.swap(__rhs); }
543 size_t hash_value(
const path& __p)
noexcept;
546 inline bool operator<(
const path& __lhs,
const path& __rhs)
noexcept;
549 inline bool operator<=(
const path& __lhs,
const path& __rhs)
noexcept
550 {
return !(__rhs < __lhs); }
553 inline bool operator>(
const path& __lhs,
const path& __rhs)
noexcept
554 {
return __rhs < __lhs; }
557 inline bool operator>=(
const path& __lhs,
const path& __rhs)
noexcept
558 {
return !(__lhs < __rhs); }
561 inline bool operator==(
const path& __lhs,
const path& __rhs)
noexcept;
564 inline bool operator!=(
const path& __lhs,
const path& __rhs)
noexcept
565 {
return !(__lhs == __rhs); }
568 inline path
operator/(
const path& __lhs,
const path& __rhs)
570 path __result(__lhs);
576 template<
typename _CharT,
typename _Traits>
577 basic_ostream<_CharT, _Traits>&
578 operator<<(basic_ostream<_CharT, _Traits>& __os,
const path& __p)
580 auto __tmp = __p.string<_CharT, _Traits>();
581 using __quoted_string
583 __os << __quoted_string{__tmp, _CharT(
'"'), _CharT(
'\\')};
588 template<
typename _CharT,
typename _Traits>
589 basic_istream<_CharT, _Traits>&
590 operator>>(basic_istream<_CharT, _Traits>& __is, path& __p)
592 basic_string<_CharT, _Traits> __tmp;
593 using __quoted_string
595 if (__is >> __quoted_string{ __tmp, _CharT(
'"'), _CharT(
'\\') })
601#ifdef _GLIBCXX_FILESYSTEM_IS_WINDOWS
602 template<
typename _InputIterator>
604 __u8path(_InputIterator __first, _InputIterator __last,
char)
607 std::codecvt_utf8_utf16<path::value_type> __cvt;
608 path::string_type __tmp;
610 const char*
const __ptr = __u8str.
data();
611 if (__str_codecvt_in_all(__ptr, __ptr + __u8str.size(), __tmp, __cvt))
612 return path{ __tmp };
613 _GLIBCXX_THROW_OR_ABORT(filesystem_error(
614 "Cannot convert character sequence",
618#ifdef _GLIBCXX_USE_CHAR8_T
619 template<
typename _InputIterator>
621 __u8path(_InputIterator __first, _InputIterator __last,
char8_t)
623 return path{ __first, __last };
628 template<
typename _InputIterator,
629 typename _Require = __detail::_Path<_InputIterator, _InputIterator>,
631 __detail::__value_type_is_char_or_char8_t<_InputIterator>>
633 u8path(_InputIterator __first, _InputIterator __last)
635#ifdef _GLIBCXX_FILESYSTEM_IS_WINDOWS
636 return __u8path(__first, __last, _CharT{});
638 return path{ __first, __last };
643#ifdef _GLIBCXX_FILESYSTEM_IS_WINDOWS
645 __u8path(
const string& __s,
char)
650 template<
typename _Source>
651 inline __enable_if_t<is_convertible<const _Source&, string>::value, path>
652 __u8path(
const _Source& __source,
char)
658 template<
typename _Source>
659 inline __enable_if_t<!is_convertible<const _Source&, string>::value, path>
660 __u8path(
const _Source& __source,
char)
662 std::string __s = path::_S_string_from_iter(__source);
666#ifdef _GLIBCXX_USE_CHAR8_T
667 template<
typename _Source>
669 __u8path(
const _Source& __source,
char8_t)
671 return path{ __source };
676 template<
typename _Source,
677 typename _Require = __detail::_Path<_Source>,
679 __detail::__value_type_is_char_or_char8_t<_Source>>
681 u8path(
const _Source& __source)
683#ifdef _GLIBCXX_FILESYSTEM_IS_WINDOWS
684 return __u8path(__source, _CharT{});
686 return path{ __source };
705 :
system_error(__ec, __what_arg), _M_path1(__p1), _M_path2(__p2)
710 const path& path1()
const noexcept {
return _M_path1; }
711 const path& path2()
const noexcept {
return _M_path2; }
712 const char*
what() const noexcept {
return _M_what.
c_str(); }
723 struct path::_Cmpt :
path
725 _Cmpt(string_type __s, _Type __t,
size_t __pos)
728 _Cmpt() : _M_pos(-1) { }
735 struct path::_Cvt<path::value_type>
740 using __codecvt_utf8_to_wide = _Cvt;
742 template<
typename _WStr>
744 __str_codecvt_in_all(
const char*,
const char*,
745 _WStr&, __codecvt_utf8_to_wide&)
noexcept
748 template<
typename _Iter>
750 _S_convert(_Iter __first, _Iter __last)
751 {
return string_type{__first, __last}; }
755 template<
typename _CharT>
761 using __codecvt_utf8_to_wchar
762 = __conditional_t<
sizeof(wchar_t) ==
sizeof(
char32_t),
763 std::codecvt_utf8<wchar_t>,
764 std::codecvt_utf8_utf16<wchar_t>>;
768 struct __codecvt_utf8_to_utfNN :
std::codecvt<_CharT, char, mbstate_t>
773 using __codecvt_utf8_to_wide
774 = __conditional_t<is_same<_CharT, wchar_t>::value,
775 __codecvt_utf8_to_wchar,
776 __codecvt_utf8_to_utfNN>;
778#ifdef _GLIBCXX_FILESYSTEM_IS_WINDOWS
779#ifdef _GLIBCXX_USE_CHAR8_T
781 _S_wconvert(
const char8_t* __f,
const char8_t* __l,
const char8_t*)
783 const char* __f2 = (
const char*)__f;
784 const char* __l2 = (
const char*)__l;
786 std::codecvt_utf8_utf16<wchar_t> __wcvt;
787 if (__str_codecvt_in_all(__f2, __l2, __wstr, __wcvt))
793 _S_wconvert(
const char* __f,
const char* __l,
const char*)
795 std::codecvt_utf8_utf16<wchar_t> __cvt;
797 if (__str_codecvt_in_all(__f, __l, __wstr, __cvt))
799 _GLIBCXX_THROW_OR_ABORT(filesystem_error(
800 "Cannot convert character sequence",
805 _S_wconvert(
const _CharT* __f,
const _CharT* __l,
const void*)
807 __codecvt_utf8_to_wide __cvt;
809 if (__str_codecvt_out_all(__f, __l, __str, __cvt))
811 const char* __f2 = __str.
data();
812 const char* __l2 = __f2 + __str.
size();
813 std::codecvt_utf8_utf16<wchar_t> __wcvt;
815 if (__str_codecvt_in_all(__f2, __l2, __wstr, __wcvt))
818 _GLIBCXX_THROW_OR_ABORT(filesystem_error(
819 "Cannot convert character sequence",
824 _S_convert(
const _CharT* __f,
const _CharT* __l)
826 return _S_wconvert(__f, __l, (
const _CharT*)
nullptr);
830 _S_convert(
const _CharT* __f,
const _CharT* __l)
832#ifdef _GLIBCXX_USE_CHAR8_T
833 if constexpr (is_same<_CharT, char8_t>::value)
834 return string_type(__f, __l);
838 __codecvt_utf8_to_wide __cvt;
840 if (__str_codecvt_out_all(__f, __l, __str, __cvt))
842 _GLIBCXX_THROW_OR_ABORT(filesystem_error(
843 "Cannot convert character sequence",
850 _S_convert(_CharT* __f, _CharT* __l)
852 return _S_convert(
const_cast<const _CharT*
>(__f),
853 const_cast<const _CharT*
>(__l));
856 template<
typename _Iter>
858 _S_convert(_Iter __first, _Iter __last)
861 return _S_convert(__str.
data(), __str.
data() + __str.
size());
864 template<
typename _Iter,
typename _Cont>
866 _S_convert(__gnu_cxx::__normal_iterator<_Iter, _Cont> __first,
867 __gnu_cxx::__normal_iterator<_Iter, _Cont> __last)
868 {
return _S_convert(__first.base(), __last.base()); }
876 using difference_type = std::ptrdiff_t;
882 iterator() noexcept : _M_path(
nullptr), _M_cur(), _M_at_end() { }
893 {
auto __tmp = *
this; ++*
this;
return __tmp; }
898 {
auto __tmp = *
this; --*
this;
return __tmp; }
902 {
return __lhs._M_equals(__rhs); }
906 {
return !__lhs._M_equals(__rhs); }
911 iterator(
const path* __path, path::_List::const_iterator __iter) noexcept
912 : _M_path(__path), _M_cur(__iter), _M_at_end()
916 : _M_path(__path), _M_cur(), _M_at_end(__at_end)
919 bool _M_equals(
iterator)
const noexcept;
922 path::_List::const_iterator _M_cur;
927 path::path() noexcept = default;
934 : _M_pathname(
std::
move(__p._M_pathname)),
935 _M_cmpts(__p._M_cmpts),
940 path::path(string_type&& __source)
941 : _M_pathname(
std::
move(__source))
942 { _M_split_cmpts(); }
945 path::path(string_type __str, _Type __type)
946 : _M_pathname(__str), _M_type(__type)
948 __glibcxx_assert(!
empty());
949 __glibcxx_assert(_M_type != _Type::_Multi);
953 path::~path() =
default;
956 path::operator=(
const path& __p) =
default;
959 path::operator=(path&& __p)
noexcept
961 _M_pathname =
std::move(__p._M_pathname);
963 _M_type = __p._M_type;
969 path::operator=(string_type&& __source)
970 {
return *
this = path(
std::move(__source)); }
973 path::assign(string_type&& __source)
974 {
return *
this = path(
std::move(__source)); }
977 path::operator+=(
const path& __p)
979 return operator+=(__p.native());
983 path::operator+=(
const string_type& __x)
991 path::operator+=(
const value_type* __x)
999 path::operator+=(value_type __x)
1006#if __cplusplus >= 201402L
1008 path::operator+=(basic_string_view<value_type> __x)
1010 _M_pathname.append(__x.data(), __x.size());
1016 template<
typename _CharT>
1017 inline __detail::_Path<_CharT*, _CharT*>&
1018 path::operator+=(_CharT __x)
1021 return concat(__addr, __addr + 1);
1025 path::make_preferred()
1027#ifdef _GLIBCXX_FILESYSTEM_IS_WINDOWS
1028 std::replace(_M_pathname.begin(), _M_pathname.end(), L
'/',
1029 preferred_separator);
1034 inline void path::swap(path& __rhs)
noexcept
1036 _M_pathname.swap(__rhs._M_pathname);
1037 _M_cmpts.swap(__rhs._M_cmpts);
1038 std::swap(_M_type, __rhs._M_type);
1041 template<
typename _CharT,
typename _Traits,
typename _Allocator>
1043 path::string(
const _Allocator& __a)
const
1045 if _GLIBCXX17_CONSTEXPR (is_same<_CharT, value_type>::value)
1046 return { _M_pathname.begin(), _M_pathname.end(), __a };
1048 using _WString = basic_string<_CharT, _Traits, _Allocator>;
1050 const value_type* __first = _M_pathname.data();
1051 const value_type* __last = __first + _M_pathname.size();
1053#ifdef _GLIBCXX_FILESYSTEM_IS_WINDOWS
1054 using _CharAlloc = __alloc_rebind<_Allocator, char>;
1055 using _String = basic_string<char, char_traits<char>, _CharAlloc>;
1059 codecvt_utf8_utf16<value_type> __cvt;
1060 _String __u8str{_CharAlloc{__a}};
1061 if (__str_codecvt_out_all(__first, __last, __u8str, __cvt))
1066 operator()(
const _String& __from, _String&, true_type)
1070 operator()(
const _String& __from, _WString& __to, false_type)
1072#ifdef _GLIBCXX_USE_CHAR8_T
1073 if constexpr (is_same<_CharT, char8_t>::value)
1075 __to.assign(__from.begin(), __from.end());
1082 typename path::_Cvt<_CharT>::__codecvt_utf8_to_wide __cvt;
1083 const char* __f = __from.data();
1084 const char* __l = __f + __from.size();
1085 if (__str_codecvt_in_all(__f, __l, __to, __cvt))
1091 _WString __wstr(__a);
1092 if (
auto* __p = __dispatch(__u8str, __wstr, is_same<_CharT, char>{}))
1096#ifdef _GLIBCXX_USE_CHAR8_T
1097 if constexpr (is_same<_CharT, char8_t>::value)
1098 return _WString(__first, __last, __a);
1102 typename path::_Cvt<_CharT>::__codecvt_utf8_to_wide __cvt;
1103 _WString __wstr(__a);
1104 if (__str_codecvt_in_all(__first, __last, __wstr, __cvt))
1108 _GLIBCXX_THROW_OR_ABORT(filesystem_error(
1109 "Cannot convert character sequence",
1114 path::string()
const {
return string<char>(); }
1116#if _GLIBCXX_USE_WCHAR_T
1118 path::wstring()
const {
return string<wchar_t>(); }
1121#ifdef _GLIBCXX_USE_CHAR8_T
1122 inline std::u8string
1123 path::u8string()
const {
return string<char8_t>(); }
1126 path::u8string()
const
1128#ifdef _GLIBCXX_FILESYSTEM_IS_WINDOWS
1131 std::codecvt_utf8_utf16<value_type> __cvt;
1132 const value_type* __first = _M_pathname.data();
1133 const value_type* __last = __first + _M_pathname.size();
1134 if (__str_codecvt_out_all(__first, __last, __str, __cvt))
1136 _GLIBCXX_THROW_OR_ABORT(filesystem_error(
1137 "Cannot convert character sequence",
1146 path::u16string()
const {
return string<char16_t>(); }
1149 path::u32string()
const {
return string<char32_t>(); }
1151 template<
typename _CharT,
typename _Traits,
typename _Allocator>
1153 path::generic_string(
const _Allocator& __a)
const
1155#ifdef _GLIBCXX_FILESYSTEM_IS_WINDOWS
1156 const _CharT __slash = is_same<_CharT, wchar_t>::value
1160 const _CharT __slash = _CharT(
'/');
1162 basic_string<_CharT, _Traits, _Allocator> __str(__a);
1163 __str.
reserve(_M_pathname.size());
1164 bool __add_slash =
false;
1165 for (
auto& __elem : *
this)
1167 if (__elem._M_type == _Type::_Root_dir)
1174 __str += __elem.string<_CharT, _Traits, _Allocator>(__a);
1175 __add_slash = __elem._M_type == _Type::_Filename;
1181 path::generic_string()
const {
return generic_string<char>(); }
1183#if _GLIBCXX_USE_WCHAR_T
1185 path::generic_wstring()
const {
return generic_string<wchar_t>(); }
1188#ifdef _GLIBCXX_USE_CHAR8_T
1189 inline std::u8string
1190 path::generic_u8string()
const {
return generic_string<char8_t>(); }
1193 path::generic_u8string()
const {
return generic_string<char>(); }
1197 path::generic_u16string()
const {
return generic_string<char16_t>(); }
1200 path::generic_u32string()
const {
return generic_string<char32_t>(); }
1203 path::compare(
const string_type& __s)
const {
return compare(path(__s)); }
1206 path::compare(
const value_type* __s)
const {
return compare(path(__s)); }
1208#if __cplusplus >= 201402L
1210 path::compare(basic_string_view<value_type> __s)
const
1211 {
return compare(path(__s)); }
1215 path::filename()
const {
return empty() ? path() : *--end(); }
1220 auto ext = _M_find_extension();
1221 if (ext.first && ext.second != 0)
1222 return path{ext.first->substr(0, ext.second)};
1227 path::extension()
const
1229 auto ext = _M_find_extension();
1231 return path{ext.first->substr(ext.second)};
1236 path::has_stem()
const
1238 auto ext = _M_find_extension();
1239 return ext.first && ext.second != 0;
1243 path::has_extension()
const
1245 auto ext = _M_find_extension();
1250 path::is_absolute()
const
1252#ifdef _GLIBCXX_FILESYSTEM_IS_WINDOWS
1253 return has_root_name() && has_root_directory();
1255 return has_root_directory();
1259 inline path::iterator
1260 path::begin() const noexcept
1262 if (_M_type == _Type::_Multi)
1263 return iterator(
this, _M_cmpts.begin());
1264 return iterator(
this,
false);
1267 inline path::iterator
1268 path::end() const noexcept
1270 if (_M_type == _Type::_Multi)
1271 return iterator(
this, _M_cmpts.end());
1272 return iterator(
this,
true);
1275 inline path::iterator&
1276 path::iterator::operator++() noexcept
1278 __glibcxx_assert(_M_path !=
nullptr);
1279 if (_M_path->_M_type == _Type::_Multi)
1281 __glibcxx_assert(_M_cur != _M_path->_M_cmpts.end());
1286 __glibcxx_assert(!_M_at_end);
1292 inline path::iterator&
1293 path::iterator::operator--() noexcept
1295 __glibcxx_assert(_M_path !=
nullptr);
1296 if (_M_path->_M_type == _Type::_Multi)
1298 __glibcxx_assert(_M_cur != _M_path->_M_cmpts.begin());
1303 __glibcxx_assert(_M_at_end);
1309 inline path::iterator::reference
1310 path::iterator::operator*() const noexcept
1312 __glibcxx_assert(_M_path !=
nullptr);
1313 if (_M_path->_M_type == _Type::_Multi)
1315 __glibcxx_assert(_M_cur != _M_path->_M_cmpts.end());
1322 path::iterator::_M_equals(iterator __rhs)
const noexcept
1324 if (_M_path != __rhs._M_path)
1326 if (_M_path ==
nullptr)
1328 if (_M_path->_M_type == path::_Type::_Multi)
1329 return _M_cur == __rhs._M_cur;
1330 return _M_at_end == __rhs._M_at_end;
1337 inline bool operator<(
const path& __lhs,
const path& __rhs)
noexcept
1338 {
return __lhs.compare(__rhs) < 0; }
1340 inline bool operator==(
const path& __lhs,
const path& __rhs)
noexcept
1341 {
return __lhs.compare(__rhs) == 0; }
1344_GLIBCXX_END_NAMESPACE_CXX11
1349_GLIBCXX_END_NAMESPACE_VERSION
constexpr bool operator<(const duration< _Rep1, _Period1 > &__lhs, const duration< _Rep2, _Period2 > &__rhs)
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.
__bool_constant< false > false_type
The type used as a compile-time boolean with false value.
auto declval() noexcept -> decltype(__declval< _Tp >(0))
constexpr std::remove_reference< _Tp >::type && move(_Tp &&__t) noexcept
Convert a value to an rvalue.
constexpr _Tp * __addressof(_Tp &__r) noexcept
Same as C++11 std::addressof.
_Tp * end(valarray< _Tp > &__va) noexcept
Return an iterator pointing to one past the last element of the valarray.
_Tp * begin(valarray< _Tp > &__va) noexcept
Return an iterator pointing to the first element of the valarray.
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.
path u8path(_InputIterator __first, _InputIterator __last)
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.
Managing sequences of characters and character-like objects.
constexpr const _CharT * c_str() const noexcept
Return const pointer to null-terminated contents.
constexpr size_type size() const noexcept
Returns the number of characters in the string, not including any null-termination.
constexpr void reserve(size_type __res_arg)
Attempt to preallocate enough memory for specified number of characters.
constexpr const _CharT * data() const noexcept
Return const pointer to contents.
constexpr void push_back(_CharT __c)
Append a single character.
static const size_type npos
Primary class template codecvt.
Traits class for iterators.
Container class for localization functionality.
Struct for delimited strings.
Struct holding two objects of arbitrary type.
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.