30 #ifndef _GLIBCXX_FS_PATH_H
31 #define _GLIBCXX_FS_PATH_H 1
33 #if __cplusplus >= 201703L
46 #include <bits/shared_ptr.h>
49 #if __cplusplus > 201703L
53 #if defined(_WIN32) && !defined(__CYGWIN__)
54 # define _GLIBCXX_FILESYSTEM_IS_WINDOWS 1
58 namespace std _GLIBCXX_VISIBILITY(default)
60 _GLIBCXX_BEGIN_NAMESPACE_VERSION
64 _GLIBCXX_BEGIN_NAMESPACE_CXX11
73 template<
typename _CharT>
74 inline constexpr
bool __is_encoded_char =
false;
76 inline constexpr
bool __is_encoded_char<char> =
true;
77 #ifdef _GLIBCXX_USE_CHAR8_T
79 inline constexpr
bool __is_encoded_char<char8_t> =
true;
81 #if _GLIBCXX_USE_WCHAR_T
83 inline constexpr
bool __is_encoded_char<wchar_t> =
true;
86 inline constexpr
bool __is_encoded_char<char16_t> =
true;
88 inline constexpr
bool __is_encoded_char<char32_t> =
true;
90 #if __cpp_concepts >= 201907L
91 template<
typename _Iter>
94 template<
typename _Iter>
99 template<>
struct __safe_iterator_traits<void*> { };
100 template<>
struct __safe_iterator_traits<const void*> { };
101 template<>
struct __safe_iterator_traits<volatile void*> { };
102 template<>
struct __safe_iterator_traits<const volatile void*> { };
105 template<
typename _Iter_traits,
typename =
void>
106 struct __is_path_iter_src
110 template<
typename _Iter_traits>
111 struct __is_path_iter_src<_Iter_traits,
112 void_t<typename _Iter_traits::value_type>>
113 :
bool_constant<__is_encoded_char<typename _Iter_traits::value_type>>
116 template<
typename _Source>
117 inline constexpr
bool __is_path_src
118 = __is_path_iter_src<iterator_traits<decay_t<_Source>>>::value;
121 inline constexpr
bool __is_path_src<path> =
false;
124 inline constexpr
bool __is_path_src<volatile path> =
false;
127 inline constexpr
bool __is_path_src<void*> =
false;
130 inline constexpr
bool __is_path_src<const void*> =
false;
133 inline constexpr
bool __is_path_src<volatile void*> =
false;
136 inline constexpr
bool __is_path_src<const volatile void*> =
false;
138 template<
typename _CharT,
typename _Traits,
typename _Alloc>
139 inline constexpr
bool
140 __is_path_src<basic_string<_CharT, _Traits, _Alloc>>
141 = __is_encoded_char<_CharT>;
143 template<
typename _CharT,
typename _Traits>
144 inline constexpr
bool
145 __is_path_src<basic_string_view<_CharT, _Traits>>
146 = __is_encoded_char<_CharT>;
149 template<
typename _Tp>
150 using _Path = enable_if_t<__is_path_src<_Tp>, path>;
153 template<
typename _Iter,
typename _Tr = __safe_iterator_traits<_Iter>>
154 using _Path2 = enable_if_t<__is_path_iter_src<_Tr>::value, path>;
160 template<
typename _CharT,
typename _Traits,
typename _Alloc>
161 inline basic_string_view<_CharT, _Traits>
162 __effective_range(
const basic_string<_CharT, _Traits, _Alloc>& __source)
165 template<
typename _CharT,
typename _Traits>
166 inline const basic_string_view<_CharT, _Traits>&
167 __effective_range(
const basic_string_view<_CharT, _Traits>& __source)
170 template<
typename _Source>
172 __effective_range(
const _Source& __source)
174 if constexpr (is_pointer_v<decay_t<_Source>>)
175 return basic_string_view{&*__source};
181 =
typename iterator_traits<_Source>::value_type;
182 basic_string<value_type> __str;
183 _Source __it = __source;
184 for (value_type __ch = *__it; __ch != value_type(); __ch = *++__it)
185 __str.push_back(__ch);
191 template<
typename _Tp>
193 decltype(__detail::__effective_range(std::declval<_Tp>()))>::value_type;
198 template<
typename _Tp,
typename _Val = __value_t<_Tp>>
199 using __value_type_is_char
204 template<
typename _Tp,
typename _Val = __value_t<_Tp>>
205 using __value_type_is_char_or_char8_t
207 #ifdef _GLIBCXX_USE_CHAR8_T
208 || std::is_same_v<_Val, char8_t>
213 template<
typename _InputIterator>
215 __string_from_range(_InputIterator __first, _InputIterator __last)
219 static_assert(__is_encoded_char<_EcharT>);
221 #if __cpp_lib_concepts
222 constexpr
bool __contiguous = std::contiguous_iterator<_InputIterator>;
224 constexpr
bool __contiguous
225 = is_pointer_v<decltype(std::__niter_base(__first))>;
227 if constexpr (__contiguous)
230 const auto* __f = std::__to_address(std::__niter_base(__first));
231 const auto* __l = std::__to_address(std::__niter_base(__last));
232 return basic_string_view<_EcharT>(__f, __l - __f);
236 return basic_string<_EcharT>(__first, __last);
251 #ifdef _GLIBCXX_FILESYSTEM_IS_WINDOWS
252 using value_type = wchar_t;
253 static constexpr value_type preferred_separator = L
'\\';
255 # ifdef _GLIBCXX_DOXYGEN
257 using value_type = __os_dependent__;
259 using value_type = char;
261 static constexpr value_type preferred_separator =
'/';
266 enum format :
unsigned char { native_format, generic_format, auto_format };
272 path(
const path& __p) =
default;
275 #if _GLIBCXX_USE_CXX11_ABI || _GLIBCXX_FULLY_DYNAMIC_STRING == 0
278 : _M_pathname(
std::move(__p._M_pathname)),
282 path(string_type&& __source,
format = auto_format)
283 : _M_pathname(
std::
move(__source))
284 { _M_split_cmpts(); }
286 template<
typename _Source,
287 typename _Require = __detail::_Path<_Source>>
288 path(_Source
const& __source,
format = auto_format)
289 : _M_pathname(_S_convert(__detail::__effective_range(__source)))
290 { _M_split_cmpts(); }
292 template<
typename _InputIterator,
293 typename _Require = __detail::_Path2<_InputIterator>>
294 path(_InputIterator __first, _InputIterator __last,
format = auto_format)
295 : _M_pathname(_S_convert(__detail::__string_from_range(__first, __last)))
296 { _M_split_cmpts(); }
298 template<
typename _Source,
299 typename _Require = __detail::_Path<_Source>,
300 typename _Require2 = __detail::__value_type_is_char<_Source>>
301 path(_Source
const& __src,
const locale& __loc,
format = auto_format)
302 : _M_pathname(_S_convert_loc(__detail::__effective_range(__src), __loc))
303 { _M_split_cmpts(); }
305 template<
typename _InputIterator,
306 typename _Require = __detail::_Path2<_InputIterator>,
307 typename _Req2 = __detail::__value_type_is_char<_InputIterator>>
308 path(_InputIterator __first, _InputIterator __last,
const locale& __loc,
310 : _M_pathname(_S_convert_loc(__first, __last, __loc))
311 { _M_split_cmpts(); }
317 path& operator=(
const path&);
318 path& operator=(path&&) noexcept;
319 path& operator=(string_type&& __source);
320 path& assign(string_type&& __source);
322 template<typename _Source>
323 __detail::_Path<_Source>&
324 operator=(_Source const& __source)
325 {
return *
this = path(__source); }
327 template<
typename _Source>
328 __detail::_Path<_Source>&
329 assign(_Source
const& __source)
330 {
return *
this = path(__source); }
332 template<
typename _InputIterator>
333 __detail::_Path2<_InputIterator>&
334 assign(_InputIterator __first, _InputIterator __last)
335 {
return *
this = path(__first, __last); }
339 path& operator/=(
const path& __p);
341 template<
typename _Source>
342 __detail::_Path<_Source>&
343 operator/=(_Source
const& __source)
345 _M_append(_S_convert(__detail::__effective_range(__source)));
349 template<
typename _Source>
350 __detail::_Path<_Source>&
351 append(_Source
const& __source)
353 _M_append(_S_convert(__detail::__effective_range(__source)));
357 template<
typename _InputIterator>
358 __detail::_Path2<_InputIterator>&
359 append(_InputIterator __first, _InputIterator __last)
361 _M_append(_S_convert(__detail::__string_from_range(__first, __last)));
367 path& operator+=(
const path& __x);
368 path& operator+=(
const string_type& __x);
369 path& operator+=(
const value_type* __x);
370 path& operator+=(value_type __x);
371 path& operator+=(basic_string_view<value_type> __x);
373 template<
typename _Source>
374 __detail::_Path<_Source>&
375 operator+=(_Source
const& __x) {
return concat(__x); }
377 template<
typename _CharT>
378 __detail::_Path2<_CharT*>&
379 operator+=(_CharT __x);
381 template<
typename _Source>
382 __detail::_Path<_Source>&
383 concat(_Source
const& __x)
385 _M_concat(_S_convert(__detail::__effective_range(__x)));
389 template<
typename _InputIterator>
390 __detail::_Path2<_InputIterator>&
391 concat(_InputIterator __first, _InputIterator __last)
393 _M_concat(_S_convert(__detail::__string_from_range(__first, __last)));
399 void clear() noexcept { _M_pathname.
clear(); _M_split_cmpts(); }
401 path& make_preferred();
402 path& remove_filename();
403 path& replace_filename(
const path& __replacement);
404 path& replace_extension(
const path& __replacement = path());
406 void swap(path& __rhs) noexcept;
410 const string_type& native() const noexcept {
return _M_pathname; }
411 const value_type* c_str() const noexcept {
return _M_pathname.
c_str(); }
412 operator string_type()
const {
return _M_pathname; }
414 template<
typename _CharT,
typename _Traits = std::
char_traits<_CharT>,
415 typename _Allocator = std::allocator<_CharT>>
417 string(
const _Allocator& __a = _Allocator())
const;
420 #if _GLIBCXX_USE_WCHAR_T
423 #ifdef _GLIBCXX_USE_CHAR8_T
424 __attribute__((__abi_tag__(
"__u8")))
425 std::u8string u8string() const;
433 template<
typename _CharT,
typename _Traits = std::
char_traits<_CharT>,
434 typename _Allocator = std::allocator<_CharT>>
436 generic_string(
const _Allocator& __a = _Allocator())
const;
439 #if _GLIBCXX_USE_WCHAR_T
442 #ifdef _GLIBCXX_USE_CHAR8_T
443 __attribute__((__abi_tag__(
"__u8")))
444 std::u8string generic_u8string() const;
453 int compare(
const path& __p)
const noexcept;
454 int compare(
const string_type& __s)
const noexcept;
455 int compare(
const value_type* __s)
const noexcept;
456 int compare(basic_string_view<value_type> __s)
const noexcept;
460 path root_name()
const;
461 path root_directory()
const;
462 path root_path()
const;
463 path relative_path()
const;
464 path parent_path()
const;
465 path filename()
const;
467 path extension()
const;
471 [[nodiscard]]
bool empty() const noexcept {
return _M_pathname.
empty(); }
472 bool has_root_name() const noexcept;
473 bool has_root_directory() const noexcept;
474 bool has_root_path() const noexcept;
475 bool has_relative_path() const noexcept;
476 bool has_parent_path() const noexcept;
477 bool has_filename() const noexcept;
478 bool has_stem() const noexcept;
479 bool has_extension() const noexcept;
480 bool is_absolute() const noexcept;
481 bool is_relative() const noexcept {
return !is_absolute(); }
484 path lexically_normal()
const;
485 path lexically_relative(
const path& base)
const;
486 path lexically_proximate(
const path& base)
const;
490 using const_iterator = iterator;
492 iterator
begin()
const;
493 iterator
end()
const;
496 template<
typename _CharT,
typename _Traits>
500 __os <<
std::quoted(__p.string<_CharT, _Traits>());
505 template<
typename _CharT,
typename _Traits>
519 {
return path::_S_compare(__lhs, __rhs) == 0; }
521 #if __cpp_lib_three_way_comparison
523 friend strong_ordering
524 operator<=>(
const path& __lhs,
const path& __rhs) noexcept
525 {
return path::_S_compare(__lhs, __rhs) <=> 0; }
529 {
return !(__lhs == __rhs); }
533 {
return __lhs.compare(__rhs) < 0; }
537 {
return !(__rhs < __lhs); }
541 {
return __rhs < __lhs; }
545 {
return !(__lhs < __rhs); }
551 path __result(__lhs);
557 enum class _Type : unsigned char {
558 _Multi = 0, _Root_name, _Root_dir, _Filename
564 __glibcxx_assert(__type != _Type::_Multi);
565 _M_cmpts.type(__type);
568 enum class _Split { _Stem, _Extension };
570 void _M_append(basic_string_view<value_type>);
571 void _M_concat(basic_string_view<value_type>);
573 pair<const string_type*, size_t> _M_find_extension() const noexcept;
584 _S_convert(string_type __str)
587 template<
typename _Tp>
589 _S_convert(
const _Tp& __str)
591 if constexpr (is_same_v<_Tp, string_type>)
593 else if constexpr (is_same_v<_Tp, basic_string_view<value_type>>)
595 else if constexpr (is_same_v<typename _Tp::value_type, value_type>)
596 return basic_string_view<value_type>(__str.
data(), __str.
size());
598 return _S_convert(__str.
data(), __str.
data() + __str.
size());
601 template<typename _EcharT>
603 _S_convert(const _EcharT* __first, const _EcharT* __last);
606 _S_convert_loc(const
char* __first, const
char* __last,
607 const
std::locale& __loc);
609 template<typename _Iter>
611 _S_convert_loc(_Iter __first, _Iter __last, const
std::locale& __loc)
613 const auto __s = __detail::__string_from_range(__first, __last);
614 return _S_convert_loc(__s.data(), __s.data() + __s.size(), __loc);
617 template<
typename _Tp>
619 _S_convert_loc(
const _Tp& __s,
const std::locale& __loc)
621 return _S_convert_loc(__s.data(), __s.data() + __s.size(), __loc);
624 template<
typename _CharT,
typename _Traits,
typename _Allocator>
625 static basic_string<_CharT, _Traits, _Allocator>
626 _S_str_convert(basic_string_view<value_type>,
const _Allocator&);
629 __attribute__((__always_inline__))
631 _S_compare(
const path& __lhs,
const path& __rhs) noexcept;
633 void _M_split_cmpts();
635 _Type _M_type() const noexcept {
return _M_cmpts.type(); }
637 string_type _M_pathname;
643 using value_type = _Cmpt;
644 using iterator = value_type*;
645 using const_iterator =
const value_type*;
649 _List(_List&&) =
default;
650 _List& operator=(
const _List&);
651 _List& operator=(_List&&) =
default;
654 _Type type() const noexcept
655 {
return _Type(
reinterpret_cast<uintptr_t
>(_M_impl.get()) & 0x3); }
657 void type(_Type) noexcept;
659 int size() const noexcept;
660 bool empty() const noexcept;
662 void swap(_List& __l) noexcept { _M_impl.swap(__l._M_impl); }
663 int capacity() const noexcept;
664 void reserve(
int,
bool);
669 iterator begin() noexcept;
670 iterator end() noexcept;
671 const_iterator begin() const noexcept;
672 const_iterator end() const noexcept;
674 value_type& front() noexcept;
675 value_type& back() noexcept;
676 const value_type& front() const noexcept;
677 const value_type& back() const noexcept;
680 void _M_erase_from(const_iterator __pos);
685 void operator()(_Impl*)
const noexcept;
687 unique_ptr<_Impl, _Impl_deleter> _M_impl;
697 inline void swap(path& __lhs, path& __rhs) noexcept { __lhs.swap(__rhs); }
699 size_t hash_value(
const path& __p) noexcept;
723 const path& path1()
const noexcept;
724 const path& path2()
const noexcept;
725 const char*
what() const noexcept;
729 std::__shared_ptr<const _Impl> _M_impl;
735 [[noreturn]]
inline void
736 __throw_conversion_error()
739 "Cannot convert character sequence",
740 std::make_error_code(errc::illegal_byte_sequence)));
743 #ifdef _GLIBCXX_FILESYSTEM_IS_WINDOWS
744 template<
typename _Tp>
746 __wstr_from_utf8(
const _Tp& __str)
748 static_assert(std::is_same_v<typename _Tp::value_type, char>);
751 std::codecvt_utf8_utf16<wchar_t> __wcvt;
752 const auto __p = __str.
data();
753 if (!__str_codecvt_in_all(__p, __p + __str.size(), __wstr, __wcvt))
754 __detail::__throw_conversion_error();
767 template<
typename _InputIterator,
768 typename _Require = __detail::_Path2<_InputIterator>,
770 = __detail::__value_type_is_char_or_char8_t<_InputIterator>>
772 u8path(_InputIterator __first, _InputIterator __last)
774 #ifdef _GLIBCXX_FILESYSTEM_IS_WINDOWS
775 if constexpr (is_same_v<_CharT, char>)
776 return path{ __detail::__wstr_from_utf8(
777 __detail::__string_from_range(__first, __last)) };
779 return path{ __first, __last };
782 return path{ __first, __last };
790 template<
typename _Source,
791 typename _Require = __detail::_Path<_Source>,
792 typename _CharT = __detail::__value_type_is_char_or_char8_t<_Source>>
796 #ifdef _GLIBCXX_FILESYSTEM_IS_WINDOWS
797 if constexpr (is_same_v<_CharT, char>)
798 return path{ __detail::__wstr_from_utf8(
799 __detail::__effective_range(__source)) };
801 return path{ __source };
804 return path{ __source };
810 struct path::_Cmpt :
path
813 :
path(__s, __t), _M_pos(__pos) { }
815 _Cmpt() : _M_pos(-1) { }
820 template<
typename _E
charT>
822 path::_S_convert(
const _EcharT* __f,
const _EcharT* __l)
824 static_assert(__detail::__is_encoded_char<_EcharT>);
826 if constexpr (is_same_v<_EcharT, value_type>)
827 return basic_string_view<value_type>(__f, __l - __f);
828 #if !defined _GLIBCXX_FILESYSTEM_IS_WINDOWS && defined _GLIBCXX_USE_CHAR8_T
829 else if constexpr (is_same_v<_EcharT, char8_t>)
831 return string_view(
reinterpret_cast<const char*
>(__f), __l - __f);
835 #ifdef _GLIBCXX_FILESYSTEM_IS_WINDOWS
837 if constexpr (is_same_v<_EcharT, char>)
839 struct _UCvt :
std::codecvt<wchar_t, char, std::mbstate_t>
841 if (__str_codecvt_in_all(__f, __l, __wstr, __cvt))
844 #ifdef _GLIBCXX_USE_CHAR8_T
845 else if constexpr (is_same_v<_EcharT, char8_t>)
847 const auto __f2 =
reinterpret_cast<const char*
>(__f);
848 return __detail::__wstr_from_utf8(string_view(__f2, __l - __f));
853 struct _UCvt :
std::codecvt<_EcharT, char, std::mbstate_t>
856 if (__str_codecvt_out_all(__f, __l, __str, __cvt))
857 return __detail::__wstr_from_utf8(__str);
860 struct _UCvt :
std::codecvt<_EcharT, char, std::mbstate_t>
863 if (__str_codecvt_out_all(__f, __l, __str, __cvt))
866 __detail::__throw_conversion_error();
876 using difference_type = std::ptrdiff_t;
882 iterator() : _M_path(
nullptr), _M_cur(), _M_at_end() { }
891 iterator operator++(
int) {
auto __tmp = *
this; ++*
this;
return __tmp; }
894 iterator operator--(
int) {
auto __tmp = *
this; --*
this;
return __tmp; }
897 {
return __lhs._M_equals(__rhs); }
900 {
return !__lhs._M_equals(__rhs); }
905 bool _M_is_multi()
const {
return _M_path->_M_type() == _Type::_Multi; }
907 friend difference_type
910 __glibcxx_assert(__first._M_path !=
nullptr);
911 __glibcxx_assert(__first._M_path == __last._M_path);
912 if (__first._M_is_multi())
914 else if (__first._M_at_end == __last._M_at_end)
917 return __first._M_at_end ? -1 : 1;
921 __path_iter_advance(
iterator& __i, difference_type __n)
929 __glibcxx_assert(__i._M_path !=
nullptr);
930 __glibcxx_assert(__i._M_is_multi());
936 iterator(
const path* __path, path::_List::const_iterator __iter)
937 : _M_path(__path), _M_cur(__iter), _M_at_end()
941 : _M_path(__path), _M_cur(), _M_at_end(__at_end)
947 path::_List::const_iterator _M_cur;
953 path::operator=(
path&& __p) noexcept
955 if (&__p ==
this) [[__unlikely__]]
958 _M_pathname =
std::move(__p._M_pathname);
965 path::operator=(string_type&& __source)
969 path::assign(string_type&& __source)
970 {
return *
this = path(
std::move(__source)); }
973 path::operator+=(
const string_type& __x)
980 path::operator+=(
const value_type* __x)
987 path::operator+=(value_type __x)
989 _M_concat(basic_string_view<value_type>(&__x, 1));
994 path::operator+=(basic_string_view<value_type> __x)
1000 template<
typename _CharT>
1001 inline __detail::_Path2<_CharT*>&
1002 path::operator+=(
const _CharT __x)
1004 _M_concat(_S_convert(&__x, &__x + 1));
1009 path::make_preferred()
1011 #ifdef _GLIBCXX_FILESYSTEM_IS_WINDOWS
1012 std::replace(_M_pathname.begin(), _M_pathname.end(), L
'/',
1013 preferred_separator);
1020 _M_pathname.swap(__rhs._M_pathname);
1021 _M_cmpts.swap(__rhs._M_cmpts);
1025 template<
typename _CharT,
typename _Traits,
typename _Allocator>
1027 path::_S_str_convert(basic_string_view<value_type> __str,
1028 const _Allocator& __a)
1030 static_assert(!is_same_v<_CharT, value_type>);
1032 using _WString = basic_string<_CharT, _Traits, _Allocator>;
1034 if (__str.size() == 0)
1035 return _WString(__a);
1037 #ifdef _GLIBCXX_FILESYSTEM_IS_WINDOWS
1040 std::codecvt_utf8_utf16<value_type> __cvt;
1042 using _CharAlloc = __alloc_rebind<_Allocator, char>;
1043 using _String = basic_string<char, char_traits<char>, _CharAlloc>;
1044 _String __u8str{_CharAlloc{__a}};
1045 const value_type* __wfirst = __str.data();
1046 const value_type* __wlast = __wfirst + __str.size();
1047 if (__str_codecvt_out_all(__wfirst, __wlast, __u8str, __cvt)) {
1048 if constexpr (is_same_v<_CharT, char>)
1052 const char* __first = __u8str.data();
1053 const char* __last = __first + __u8str.size();
1055 const value_type* __first = __str.data();
1056 const value_type* __last = __first + __str.size();
1060 #ifdef _GLIBCXX_USE_CHAR8_T
1061 if constexpr (is_same_v<_CharT, char8_t>)
1062 return _WString(__first, __last, __a);
1067 _WString __wstr(__a);
1068 struct _UCvt :
std::codecvt<_CharT, char, std::mbstate_t> { } __cvt;
1069 if (__str_codecvt_in_all(__first, __last, __wstr, __cvt))
1073 #ifdef _GLIBCXX_FILESYSTEM_IS_WINDOWS
1076 __detail::__throw_conversion_error();
1080 template<
typename _CharT,
typename _Traits,
typename _Allocator>
1081 inline basic_string<_CharT, _Traits, _Allocator>
1082 path::string(
const _Allocator& __a)
const
1084 if constexpr (is_same_v<_CharT, value_type>)
1085 return { _M_pathname.c_str(), _M_pathname.length(), __a };
1087 return _S_str_convert<_CharT, _Traits>(_M_pathname, __a);
1091 path::string()
const {
return string<char>(); }
1093 #if _GLIBCXX_USE_WCHAR_T
1095 path::wstring()
const {
return string<wchar_t>(); }
1098 #ifdef _GLIBCXX_USE_CHAR8_T
1099 inline std::u8string
1100 path::u8string()
const {
return string<char8_t>(); }
1103 path::u8string()
const
1105 #ifdef _GLIBCXX_FILESYSTEM_IS_WINDOWS
1108 std::codecvt_utf8_utf16<value_type> __cvt;
1109 const value_type* __first = _M_pathname.
data();
1110 const value_type* __last = __first + _M_pathname.size();
1111 if (__str_codecvt_out_all(__first, __last, __str, __cvt))
1113 __detail::__throw_conversion_error();
1121 path::u16string()
const {
return string<char16_t>(); }
1124 path::u32string()
const {
return string<char32_t>(); }
1126 template<
typename _CharT,
typename _Traits,
typename _Allocator>
1128 path::generic_string(
const _Allocator& __a)
const
1130 #ifdef _GLIBCXX_FILESYSTEM_IS_WINDOWS
1131 const value_type __slash = L
'/';
1133 const value_type __slash =
'/';
1135 using _Alloc2 =
typename allocator_traits<_Allocator>::template
1136 rebind_alloc<value_type>;
1137 basic_string<value_type, char_traits<value_type>, _Alloc2> __str(__a);
1139 if (_M_type() == _Type::_Root_dir)
1140 __str.
assign(1, __slash);
1143 __str.
reserve(_M_pathname.size());
1144 bool __add_slash =
false;
1145 for (
auto& __elem : *
this)
1147 #ifdef _GLIBCXX_FILESYSTEM_IS_WINDOWS
1148 if (__elem._M_type() == _Type::_Root_dir)
1156 __str += basic_string_view<value_type>(__elem._M_pathname);
1157 __add_slash = __elem._M_type() == _Type::_Filename;
1161 if constexpr (is_same_v<_CharT, value_type>)
1164 return _S_str_convert<_CharT, _Traits>(__str, __a);
1168 path::generic_string()
const
1169 {
return generic_string<char>(); }
1171 #if _GLIBCXX_USE_WCHAR_T
1173 path::generic_wstring()
const
1174 {
return generic_string<wchar_t>(); }
1177 #ifdef _GLIBCXX_USE_CHAR8_T
1178 inline std::u8string
1179 path::generic_u8string()
const
1180 {
return generic_string<char8_t>(); }
1183 path::generic_u8string()
const
1184 {
return generic_string(); }
1188 path::generic_u16string()
const
1189 {
return generic_string<char16_t>(); }
1192 path::generic_u32string()
const
1193 {
return generic_string<char32_t>(); }
1196 path::compare(
const string_type& __s)
const noexcept
1197 {
return compare(basic_string_view<value_type>(__s)); }
1200 path::compare(
const value_type* __s)
const noexcept
1201 {
return compare(basic_string_view<value_type>(__s)); }
1204 path::filename()
const
1208 else if (_M_type() == _Type::_Filename)
1210 else if (_M_type() == _Type::_Multi)
1212 if (_M_pathname.back() == preferred_separator)
1214 auto& __last = *--
end();
1215 if (__last._M_type() == _Type::_Filename)
1224 auto ext = _M_find_extension();
1225 if (ext.first && ext.second != 0)
1226 return path{ext.first->substr(0, ext.second)};
1231 path::extension()
const
1233 auto ext = _M_find_extension();
1235 return path{ext.first->substr(ext.second)};
1240 path::has_stem() const noexcept
1242 auto ext = _M_find_extension();
1243 return ext.first && ext.second != 0;
1247 path::has_extension() const noexcept
1249 auto ext = _M_find_extension();
1254 path::is_absolute() const noexcept
1256 #ifdef _GLIBCXX_FILESYSTEM_IS_WINDOWS
1257 return has_root_name() && has_root_directory();
1259 return has_root_directory();
1263 inline path::iterator
1266 if (_M_type() == _Type::_Multi)
1267 return iterator(
this, _M_cmpts.begin());
1268 return iterator(
this,
empty());
1271 inline path::iterator
1274 if (_M_type() == _Type::_Multi)
1275 return iterator(
this, _M_cmpts.end());
1276 return iterator(
this,
true);
1279 inline path::iterator&
1280 path::iterator::operator++()
1282 __glibcxx_assert(_M_path !=
nullptr);
1283 if (_M_path->_M_type() == _Type::_Multi)
1285 __glibcxx_assert(_M_cur != _M_path->_M_cmpts.end());
1290 __glibcxx_assert(!_M_at_end);
1296 inline path::iterator&
1297 path::iterator::operator--()
1299 __glibcxx_assert(_M_path !=
nullptr);
1300 if (_M_path->_M_type() == _Type::_Multi)
1302 __glibcxx_assert(_M_cur != _M_path->_M_cmpts.begin());
1307 __glibcxx_assert(_M_at_end);
1313 inline path::iterator::reference
1314 path::iterator::operator*()
const
1316 __glibcxx_assert(_M_path !=
nullptr);
1317 if (_M_path->_M_type() == _Type::_Multi)
1319 __glibcxx_assert(_M_cur != _M_path->_M_cmpts.end());
1326 path::iterator::_M_equals(iterator __rhs)
const
1328 if (_M_path != __rhs._M_path)
1330 if (_M_path ==
nullptr)
1332 if (_M_path->_M_type() == path::_Type::_Multi)
1333 return _M_cur == __rhs._M_cur;
1334 return _M_at_end == __rhs._M_at_end;
1342 path::_S_compare(
const path& __lhs,
const path& __rhs) noexcept
1343 {
return __lhs.compare(__rhs); }
1346 _GLIBCXX_END_NAMESPACE_CXX11
1352 distance(filesystem::path::iterator __first, filesystem::path::iterator __last)
1353 {
return __path_iter_distance(__first, __last); }
1355 template<
typename _Distance>
1357 advance(filesystem::path::iterator& __i, _Distance __n)
1358 { __path_iter_advance(__i,
static_cast<ptrdiff_t
>(__n)); }
1360 extern template class __shared_ptr<const filesystem::filesystem_error::_Impl>;
1364 _GLIBCXX_END_NAMESPACE_VERSION
constexpr complex< _Tp > operator*(const complex< _Tp > &__x, const complex< _Tp > &__y)
Return new complex value x times y.
path u8path(_InputIterator __first, _InputIterator __last)
path u8path(const _Source &__source)
typename remove_reference< _Tp >::type remove_reference_t
Alias template for remove_reference.
integral_constant< bool, __v > bool_constant
Alias template for compile-time boolean constant types.
void void_t
A metafunction that always yields void, used for detecting valid types.
integral_constant< bool, false > false_type
The type used as a compile-time boolean with false value.
typename enable_if< _Cond, _Tp >::type enable_if_t
Alias template for enable_if.
constexpr _Tp * __addressof(_Tp &__r) noexcept
Same as C++11 std::addressof.
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.
_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.
ISO C++ entities toplevel namespace is std.
constexpr iterator_traits< _InputIterator >::difference_type distance(_InputIterator __first, _InputIterator __last)
A generalization of pointer arithmetic.
constexpr auto empty(const _Container &__cont) noexcept(noexcept(__cont.empty())) -> decltype(__cont.empty())
Return whether a container is empty.
constexpr auto size(const _Container &__cont) noexcept(noexcept(__cont.size())) -> decltype(__cont.size())
Return the size of a container.
constexpr void advance(_InputIterator &__i, _Distance __n)
A generalization of pointer arithmetic.
constexpr auto data(_Container &__cont) noexcept(noexcept(__cont.data())) -> decltype(__cont.data())
Return the data pointer of a container.
auto quoted(const _CharT *__string, _CharT __delim=_CharT('"'), _CharT __escape = _CharT('\\'))
Manipulator for quoted strings.
Template class basic_istream.
Template class basic_ostream.
A non-owning reference to a string.
An exception type that includes an error_code value.
const _CharT * c_str() const noexcept
Return const pointer to null-terminated contents.
void reserve(size_type __res_arg)
Attempt to preallocate enough memory for specified number of characters.
basic_string & assign(const basic_string &__str)
Set value to contents of another string.
const _CharT * data() const noexcept
Return const pointer to contents.
bool empty() const noexcept
static const size_type npos
Value returned by various member functions when they fail.
Primary class template codecvt.
Traits class for iterators.
friend bool operator!=(const path &__lhs, const path &__rhs) noexcept
Compare paths.
friend bool operator<=(const path &__lhs, const path &__rhs) noexcept
Compare paths.
friend std::basic_ostream< _CharT, _Traits > & operator<<(std::basic_ostream< _CharT, _Traits > &__os, const path &__p)
Write a path to a stream.
friend bool operator>(const path &__lhs, const path &__rhs) noexcept
Compare paths.
friend path operator/(const path &__lhs, const path &__rhs)
Append one path to another.
format
path::format is ignored in this implementation
friend bool operator>=(const path &__lhs, const path &__rhs) noexcept
Compare paths.
friend bool operator<(const path &__lhs, const path &__rhs) noexcept
Compare paths.
friend std::basic_istream< _CharT, _Traits > & operator>>(std::basic_istream< _CharT, _Traits > &__is, path &__p)
Read a path from a stream.
friend bool operator==(const path &__lhs, const path &__rhs) noexcept
Compare paths.
Exception type thrown by the Filesystem library.
const char * what() const noexcept
An iterator for the components of a path.
Container class for localization functionality.
Bidirectional iterators support a superset of forward iterator operations.