2 //===--------------------------- filesystem -------------------------------===//
4 // The LLVM Compiler Infrastructure
6 // This file is dual licensed under the MIT and the University of Illinois Open
7 // Source Licenses. See LICENSE.TXT for details.
9 //===----------------------------------------------------------------------===//
10 #ifndef _LIBCPP_EXPERIMENTAL_FILESYSTEM
11 #define _LIBCPP_EXPERIMENTAL_FILESYSTEM
15 namespace std { namespace experimental { namespace filesystem { inline namespace v1 {
19 void swap(path& lhs, path& rhs) _NOEXCEPT;
20 size_t hash_value(const path& p) _NOEXCEPT;
22 bool operator==(const path& lhs, const path& rhs) _NOEXCEPT;
23 bool operator!=(const path& lhs, const path& rhs) _NOEXCEPT;
24 bool operator< (const path& lhs, const path& rhs) _NOEXCEPT;
25 bool operator<=(const path& lhs, const path& rhs) _NOEXCEPT;
26 bool operator> (const path& lhs, const path& rhs) _NOEXCEPT;
27 bool operator>=(const path& lhs, const path& rhs) _NOEXCEPT;
29 path operator/ (const path& lhs, const path& rhs);
31 template <class charT, class traits>
32 basic_ostream<charT, traits>&
33 operator<<(basic_ostream<charT, traits>& os, const path& p);
35 template <class charT, class traits>
36 basic_istream<charT, traits>&
37 operator>>(basic_istream<charT, traits>& is, path& p);
39 template <class Source>
40 path u8path(const Source& source);
41 template <class InputIterator>
42 path u8path(InputIterator first, InputIterator last);
44 class filesystem_error;
45 class directory_entry;
47 class directory_iterator;
49 // enable directory_iterator range-based for statements
50 directory_iterator begin(directory_iterator iter) noexcept;
51 directory_iterator end(const directory_iterator&) noexcept;
53 class recursive_directory_iterator;
55 // enable recursive_directory_iterator range-based for statements
56 recursive_directory_iterator begin(recursive_directory_iterator iter) noexcept;
57 recursive_directory_iterator end(const recursive_directory_iterator&) noexcept;
70 enum class copy_options;
71 enum class directory_options;
73 typedef chrono::time_point<trivial-clock> file_time_type;
75 // operational functions
77 path absolute(const path& p, const path& base=current_path());
79 path canonical(const path& p, const path& base = current_path());
80 path canonical(const path& p, error_code& ec);
81 path canonical(const path& p, const path& base, error_code& ec);
83 void copy(const path& from, const path& to);
84 void copy(const path& from, const path& to, error_code& ec);
85 void copy(const path& from, const path& to, copy_options options);
86 void copy(const path& from, const path& to, copy_options options,
89 bool copy_file(const path& from, const path& to);
90 bool copy_file(const path& from, const path& to, error_code& ec) _NOEXCEPT;
91 bool copy_file(const path& from, const path& to, copy_options option);
92 bool copy_file(const path& from, const path& to, copy_options option,
93 error_code& ec) _NOEXCEPT;
95 void copy_symlink(const path& existing_symlink, const path& new_symlink);
96 void copy_symlink(const path& existing_symlink, const path& new_symlink,
97 error_code& ec) _NOEXCEPT;
99 bool create_directories(const path& p);
100 bool create_directories(const path& p, error_code& ec) _NOEXCEPT;
102 bool create_directory(const path& p);
103 bool create_directory(const path& p, error_code& ec) _NOEXCEPT;
105 bool create_directory(const path& p, const path& attributes);
106 bool create_directory(const path& p, const path& attributes,
107 error_code& ec) _NOEXCEPT;
109 void create_directory_symlink(const path& to, const path& new_symlink);
110 void create_directory_symlink(const path& to, const path& new_symlink,
111 error_code& ec) _NOEXCEPT;
113 void create_hard_link(const path& to, const path& new_hard_link);
114 void create_hard_link(const path& to, const path& new_hard_link,
115 error_code& ec) _NOEXCEPT;
117 void create_symlink(const path& to, const path& new_symlink);
118 void create_symlink(const path& to, const path& new_symlink,
119 error_code& ec) _NOEXCEPT;
122 path current_path(error_code& ec);
123 void current_path(const path& p);
124 void current_path(const path& p, error_code& ec) _NOEXCEPT;
126 bool exists(file_status s) _NOEXCEPT;
127 bool exists(const path& p);
128 bool exists(const path& p, error_code& ec) _NOEXCEPT;
130 bool equivalent(const path& p1, const path& p2);
131 bool equivalent(const path& p1, const path& p2, error_code& ec) _NOEXCEPT;
133 uintmax_t file_size(const path& p);
134 uintmax_t file_size(const path& p, error_code& ec) _NOEXCEPT;
136 uintmax_t hard_link_count(const path& p);
137 uintmax_t hard_link_count(const path& p, error_code& ec) _NOEXCEPT;
139 bool is_block_file(file_status s) _NOEXCEPT;
140 bool is_block_file(const path& p);
141 bool is_block_file(const path& p, error_code& ec) _NOEXCEPT;
143 bool is_character_file(file_status s) _NOEXCEPT;
144 bool is_character_file(const path& p);
145 bool is_character_file(const path& p, error_code& ec) _NOEXCEPT;
147 bool is_directory(file_status s) _NOEXCEPT;
148 bool is_directory(const path& p);
149 bool is_directory(const path& p, error_code& ec) _NOEXCEPT;
151 bool is_empty(const path& p);
152 bool is_empty(const path& p, error_code& ec) _NOEXCEPT;
154 bool is_fifo(file_status s) _NOEXCEPT;
155 bool is_fifo(const path& p);
156 bool is_fifo(const path& p, error_code& ec) _NOEXCEPT;
158 bool is_other(file_status s) _NOEXCEPT;
159 bool is_other(const path& p);
160 bool is_other(const path& p, error_code& ec) _NOEXCEPT;
162 bool is_regular_file(file_status s) _NOEXCEPT;
163 bool is_regular_file(const path& p);
164 bool is_regular_file(const path& p, error_code& ec) _NOEXCEPT;
166 bool is_socket(file_status s) _NOEXCEPT;
167 bool is_socket(const path& p);
168 bool is_socket(const path& p, error_code& ec) _NOEXCEPT;
170 bool is_symlink(file_status s) _NOEXCEPT;
171 bool is_symlink(const path& p);
172 bool is_symlink(const path& p, error_code& ec) _NOEXCEPT;
174 file_time_type last_write_time(const path& p);
175 file_time_type last_write_time(const path& p, error_code& ec) _NOEXCEPT;
176 void last_write_time(const path& p, file_time_type new_time);
177 void last_write_time(const path& p, file_time_type new_time,
178 error_code& ec) _NOEXCEPT;
180 void permissions(const path& p, perms prms);
181 void permissions(const path& p, perms prms, error_code& ec) _NOEXCEPT;
183 path read_symlink(const path& p);
184 path read_symlink(const path& p, error_code& ec);
186 bool remove(const path& p);
187 bool remove(const path& p, error_code& ec) _NOEXCEPT;
189 uintmax_t remove_all(const path& p);
190 uintmax_t remove_all(const path& p, error_code& ec) _NOEXCEPT;
192 void rename(const path& from, const path& to);
193 void rename(const path& from, const path& to, error_code& ec) _NOEXCEPT;
195 void resize_file(const path& p, uintmax_t size);
196 void resize_file(const path& p, uintmax_t size, error_code& ec) _NOEXCEPT;
198 space_info space(const path& p);
199 space_info space(const path& p, error_code& ec) _NOEXCEPT;
201 file_status status(const path& p);
202 file_status status(const path& p, error_code& ec) _NOEXCEPT;
204 bool status_known(file_status s) _NOEXCEPT;
206 file_status symlink_status(const path& p);
207 file_status symlink_status(const path& p, error_code& ec) _NOEXCEPT;
209 path system_complete(const path& p);
210 path system_complete(const path& p, error_code& ec);
212 path temp_directory_path();
213 path temp_directory_path(error_code& ec);
215 } } } } // namespaces std::experimental::filesystem::v1
219 #include <experimental/__config>
228 #include <system_error>
230 #include <iomanip> // for quoted
231 #include <string_view>
235 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
236 #pragma GCC system_header
239 #define __cpp_lib_experimental_filesystem 201406
241 _LIBCPP_BEGIN_NAMESPACE_EXPERIMENTAL_FILESYSTEM
243 typedef chrono::time_point<std::chrono::system_clock> file_time_type;
245 struct _LIBCPP_TYPE_VIS space_info
252 enum class _LIBCPP_ENUM_VIS file_type : signed char
266 enum class _LIBCPP_ENUM_VIS perms : unsigned
294 remove_perms = 0x20000,
295 symlink_nofollow = 0x40000
298 _LIBCPP_INLINE_VISIBILITY
299 inline _LIBCPP_CONSTEXPR perms operator&(perms _LHS, perms _RHS)
300 { return static_cast<perms>(static_cast<unsigned>(_LHS) & static_cast<unsigned>(_RHS)); }
302 _LIBCPP_INLINE_VISIBILITY
303 inline _LIBCPP_CONSTEXPR perms operator|(perms _LHS, perms _RHS)
304 { return static_cast<perms>(static_cast<unsigned>(_LHS) | static_cast<unsigned>(_RHS)); }
306 _LIBCPP_INLINE_VISIBILITY
307 inline _LIBCPP_CONSTEXPR perms operator^(perms _LHS, perms _RHS)
308 { return static_cast<perms>(static_cast<unsigned>(_LHS) ^ static_cast<unsigned>(_RHS)); }
310 _LIBCPP_INLINE_VISIBILITY
311 inline _LIBCPP_CONSTEXPR perms operator~(perms _LHS)
312 { return static_cast<perms>(~static_cast<unsigned>(_LHS)); }
314 _LIBCPP_INLINE_VISIBILITY
315 inline perms& operator&=(perms& _LHS, perms _RHS)
316 { return _LHS = _LHS & _RHS; }
318 _LIBCPP_INLINE_VISIBILITY
319 inline perms& operator|=(perms& _LHS, perms _RHS)
320 { return _LHS = _LHS | _RHS; }
322 _LIBCPP_INLINE_VISIBILITY
323 inline perms& operator^=(perms& _LHS, perms _RHS)
324 { return _LHS = _LHS ^ _RHS; }
326 enum class _LIBCPP_ENUM_VIS copy_options : unsigned short
330 overwrite_existing = 2,
335 directories_only = 64,
336 create_symlinks = 128,
337 create_hard_links = 256,
338 __in_recursive_copy = 512,
341 _LIBCPP_INLINE_VISIBILITY
342 inline _LIBCPP_CONSTEXPR copy_options operator&(copy_options _LHS, copy_options _RHS)
343 { return static_cast<copy_options>(static_cast<unsigned short>(_LHS) & static_cast<unsigned short>(_RHS)); }
345 _LIBCPP_INLINE_VISIBILITY
346 inline _LIBCPP_CONSTEXPR copy_options operator|(copy_options _LHS, copy_options _RHS)
347 { return static_cast<copy_options>(static_cast<unsigned short>(_LHS) | static_cast<unsigned short>(_RHS)); }
349 _LIBCPP_INLINE_VISIBILITY
350 inline _LIBCPP_CONSTEXPR copy_options operator^(copy_options _LHS, copy_options _RHS)
351 { return static_cast<copy_options>(static_cast<unsigned short>(_LHS) ^ static_cast<unsigned short>(_RHS)); }
353 _LIBCPP_INLINE_VISIBILITY
354 inline _LIBCPP_CONSTEXPR copy_options operator~(copy_options _LHS)
355 { return static_cast<copy_options>(~static_cast<unsigned short>(_LHS)); }
357 _LIBCPP_INLINE_VISIBILITY
358 inline copy_options& operator&=(copy_options& _LHS, copy_options _RHS)
359 { return _LHS = _LHS & _RHS; }
361 _LIBCPP_INLINE_VISIBILITY
362 inline copy_options& operator|=(copy_options& _LHS, copy_options _RHS)
363 { return _LHS = _LHS | _RHS; }
365 _LIBCPP_INLINE_VISIBILITY
366 inline copy_options& operator^=(copy_options& _LHS, copy_options _RHS)
367 { return _LHS = _LHS ^ _RHS; }
370 enum class _LIBCPP_ENUM_VIS directory_options : unsigned char
373 follow_directory_symlink = 1,
374 skip_permission_denied = 2
377 _LIBCPP_INLINE_VISIBILITY
378 inline _LIBCPP_CONSTEXPR directory_options operator&(directory_options _LHS, directory_options _RHS)
379 { return static_cast<directory_options>(static_cast<unsigned char>(_LHS) & static_cast<unsigned char>(_RHS)); }
381 _LIBCPP_INLINE_VISIBILITY
382 inline _LIBCPP_CONSTEXPR directory_options operator|(directory_options _LHS, directory_options _RHS)
383 { return static_cast<directory_options>(static_cast<unsigned char>(_LHS) | static_cast<unsigned char>(_RHS)); }
385 _LIBCPP_INLINE_VISIBILITY
386 inline _LIBCPP_CONSTEXPR directory_options operator^(directory_options _LHS, directory_options _RHS)
387 { return static_cast<directory_options>(static_cast<unsigned char>(_LHS) ^ static_cast<unsigned char>(_RHS)); }
389 _LIBCPP_INLINE_VISIBILITY
390 inline _LIBCPP_CONSTEXPR directory_options operator~(directory_options _LHS)
391 { return static_cast<directory_options>(~static_cast<unsigned char>(_LHS)); }
393 _LIBCPP_INLINE_VISIBILITY
394 inline directory_options& operator&=(directory_options& _LHS, directory_options _RHS)
395 { return _LHS = _LHS & _RHS; }
397 _LIBCPP_INLINE_VISIBILITY
398 inline directory_options& operator|=(directory_options& _LHS, directory_options _RHS)
399 { return _LHS = _LHS | _RHS; }
401 _LIBCPP_INLINE_VISIBILITY
402 inline directory_options& operator^=(directory_options& _LHS, directory_options _RHS)
403 { return _LHS = _LHS ^ _RHS; }
406 class _LIBCPP_TYPE_VIS file_status
410 _LIBCPP_INLINE_VISIBILITY
411 file_status() _NOEXCEPT : file_status(file_type::none) {}
412 _LIBCPP_INLINE_VISIBILITY
413 explicit file_status(file_type __ft,
414 perms __prms = perms::unknown) _NOEXCEPT
415 : __ft_(__ft), __prms_(__prms)
418 file_status(const file_status&) _NOEXCEPT = default;
419 file_status(file_status&&) _NOEXCEPT = default;
421 _LIBCPP_INLINE_VISIBILITY
424 file_status& operator=(const file_status&) _NOEXCEPT = default;
425 file_status& operator=(file_status&&) _NOEXCEPT = default;
428 _LIBCPP_ALWAYS_INLINE
429 file_type type() const _NOEXCEPT {
433 _LIBCPP_ALWAYS_INLINE
434 perms permissions() const _NOEXCEPT {
439 _LIBCPP_ALWAYS_INLINE
440 void type(file_type __ft) _NOEXCEPT {
444 _LIBCPP_ALWAYS_INLINE
445 void permissions(perms __p) _NOEXCEPT {
453 class _LIBCPP_TYPE_VIS directory_entry;
455 template <class _Tp> struct __can_convert_char {
456 static const bool value = false;
458 template <class _Tp> struct __can_convert_char<const _Tp>
459 : public __can_convert_char<_Tp> {
461 template <> struct __can_convert_char<char> {
462 static const bool value = true;
463 using __char_type = char;
465 template <> struct __can_convert_char<wchar_t> {
466 static const bool value = true;
467 using __char_type = wchar_t;
469 template <> struct __can_convert_char<char16_t> {
470 static const bool value = true;
471 using __char_type = char16_t;
473 template <> struct __can_convert_char<char32_t> {
474 static const bool value = true;
475 using __char_type = char32_t;
478 template <class _ECharT>
479 typename enable_if<__can_convert_char<_ECharT>::value, bool>::type
480 __is_separator(_ECharT __e) {
481 return __e == _ECharT('/');
484 struct _NullSentinal {};
489 template <class _Tp, class = void>
490 struct __is_pathable_string : public false_type {};
492 template <class _ECharT, class _Traits, class _Alloc>
493 struct __is_pathable_string<basic_string<_ECharT, _Traits, _Alloc>,
494 _Void<typename __can_convert_char<_ECharT>::__char_type>>
495 : public __can_convert_char<_ECharT>
497 using _Str = basic_string<_ECharT, _Traits, _Alloc>;
498 using _Base = __can_convert_char<_ECharT>;
499 static _ECharT const* __range_begin(_Str const& __s) { return __s.data(); }
500 static _ECharT const* __range_end(_Str const& __s) { return __s.data() + __s.length(); }
501 static _ECharT __first_or_null(_Str const& __s) {
502 return __s.empty() ? _ECharT{} : __s[0];
507 template <class _ECharT, class _Traits>
508 struct __is_pathable_string<basic_string_view<_ECharT, _Traits>,
509 _Void<typename __can_convert_char<_ECharT>::__char_type>>
510 : public __can_convert_char<_ECharT>
512 using _Str = basic_string_view<_ECharT, _Traits>;
513 using _Base = __can_convert_char<_ECharT>;
514 static _ECharT const* __range_begin(_Str const& __s) { return __s.data(); }
515 static _ECharT const* __range_end(_Str const& __s) { return __s.data() + __s.length(); }
516 static _ECharT __first_or_null(_Str const& __s) {
517 return __s.empty() ? _ECharT{} : __s[0];
521 template <class _Source,
522 class _DS = typename decay<_Source>::type,
523 class _UnqualPtrType = typename remove_const<
524 typename remove_pointer<_DS>::type>::type,
525 bool _IsCharPtr = is_pointer<_DS>::value &&
526 __can_convert_char<_UnqualPtrType>::value
528 struct __is_pathable_char_array : false_type {};
530 template <class _Source, class _ECharT, class _UPtr>
531 struct __is_pathable_char_array<_Source, _ECharT*, _UPtr, true>
532 : __can_convert_char<typename remove_const<_ECharT>::type>
534 using _Base = __can_convert_char<typename remove_const<_ECharT>::type>;
536 static _ECharT const* __range_begin(const _ECharT* __b) { return __b; }
537 static _ECharT const* __range_end(const _ECharT* __b)
539 using _Iter = const _ECharT*;
540 const _ECharT __sentinal = _ECharT{};
542 for (; *__e != __sentinal; ++__e)
547 static _ECharT __first_or_null(const _ECharT* __b) { return *__b; }
550 template <class _Iter, bool _IsIt = __is_input_iterator<_Iter>::value, class = void>
551 struct __is_pathable_iter : false_type {};
553 template <class _Iter>
554 struct __is_pathable_iter<_Iter, true,
555 _Void<typename __can_convert_char<typename iterator_traits<_Iter>::value_type>::__char_type>>
556 : __can_convert_char<typename iterator_traits<_Iter>::value_type>
558 using _ECharT = typename iterator_traits<_Iter>::value_type;
559 using _Base = __can_convert_char<_ECharT>;
561 static _Iter __range_begin(_Iter __b) { return __b; }
562 static _NullSentinal __range_end(_Iter) { return _NullSentinal{}; }
564 static _ECharT __first_or_null(_Iter __b) { return *__b; }
567 template <class _Tp, bool _IsStringT = __is_pathable_string<_Tp>::value,
568 bool _IsCharIterT = __is_pathable_char_array<_Tp>::value,
569 bool _IsIterT = !_IsCharIterT && __is_pathable_iter<_Tp>::value
571 struct __is_pathable : false_type {
572 static_assert(!_IsStringT && !_IsCharIterT && !_IsIterT, "Must all be false");
576 struct __is_pathable<_Tp, true, false, false> : __is_pathable_string<_Tp> {};
580 struct __is_pathable<_Tp, false, true, false> : __is_pathable_char_array<_Tp> {};
584 struct __is_pathable<_Tp, false, false, true> : __is_pathable_iter<_Tp> {};
587 template <class _ECharT>
589 static_assert(__can_convert_char<_ECharT>::value, "Char type not convertible");
591 typedef __narrow_to_utf8<sizeof(_ECharT)*__CHAR_BIT__> _Narrower;
593 static void __append_range(string& __dest, _ECharT const* __b, _ECharT const* __e) {
594 _Narrower()(back_inserter(__dest), __b, __e);
597 template <class _Iter>
598 static void __append_range(string& __dest, _Iter __b, _Iter __e) {
599 static_assert(!is_same<_Iter, _ECharT*>::value, "Call const overload");
600 if (__b == __e) return;
601 basic_string<_ECharT> __tmp(__b, __e);
602 _Narrower()(back_inserter(__dest), __tmp.data(),
603 __tmp.data() + __tmp.length());
606 template <class _Iter>
607 static void __append_range(string& __dest, _Iter __b, _NullSentinal) {
608 static_assert(!is_same<_Iter, _ECharT*>::value, "Call const overload");
609 const _ECharT __sentinal = _ECharT{};
610 if (*__b == __sentinal) return;
611 basic_string<_ECharT> __tmp;
612 for (; *__b != __sentinal; ++__b)
613 __tmp.push_back(*__b);
614 _Narrower()(back_inserter(__dest), __tmp.data(),
615 __tmp.data() + __tmp.length());
618 template <class _Source>
619 static void __append_source(string& __dest, _Source const& __s)
621 using _Traits = __is_pathable<_Source>;
622 __append_range(__dest, _Traits::__range_begin(__s), _Traits::__range_end(__s));
627 struct _PathCVT<char> {
629 template <class _Iter>
630 static typename enable_if<
631 __is_exactly_input_iterator<_Iter>::value
632 >::type __append_range(string& __dest, _Iter __b, _Iter __e) {
633 for (; __b != __e; ++__b)
634 __dest.push_back(*__b);
637 template <class _Iter>
638 static typename enable_if<
639 __is_forward_iterator<_Iter>::value
640 >::type __append_range(string& __dest, _Iter __b, _Iter __e) {
641 __dest.__append_forward_unsafe(__b, __e);
644 template <class _Iter>
645 static void __append_range(string& __dest, _Iter __b, _NullSentinal) {
646 const char __sentinal = char{};
647 for (; *__b != __sentinal; ++__b)
648 __dest.push_back(*__b);
651 template <class _Source>
652 static void __append_source(string& __dest, _Source const& __s)
654 using _Traits = __is_pathable<_Source>;
655 __append_range(__dest, _Traits::__range_begin(__s),
656 _Traits::__range_end(__s));
661 class _LIBCPP_TYPE_VIS path
663 template <class _SourceOrIter, class _Tp = path&>
664 using _EnableIfPathable = typename
665 enable_if<__is_pathable<_SourceOrIter>::value, _Tp>::type;
668 using _SourceChar = typename __is_pathable<_Tp>::__char_type;
671 using _SourceCVT = _PathCVT<_SourceChar<_Tp>>;
674 typedef char value_type;
675 typedef basic_string<value_type> string_type;
676 typedef _VSTD::string_view __string_view;
677 static _LIBCPP_CONSTEXPR value_type preferred_separator = '/';
679 // constructors and destructor
680 _LIBCPP_INLINE_VISIBILITY path() _NOEXCEPT {}
681 _LIBCPP_INLINE_VISIBILITY path(const path& __p) : __pn_(__p.__pn_) {}
682 _LIBCPP_INLINE_VISIBILITY path(path&& __p) _NOEXCEPT : __pn_(_VSTD::move(__p.__pn_)) {}
684 _LIBCPP_INLINE_VISIBILITY
685 path(string_type&& __s) _NOEXCEPT : __pn_(_VSTD::move(__s)) {}
689 class = _EnableIfPathable<_Source, void>
691 path(const _Source& __src) {
692 _SourceCVT<_Source>::__append_source(__pn_, __src);
695 template <class _InputIt>
696 path(_InputIt __first, _InputIt __last) {
697 typedef typename iterator_traits<_InputIt>::value_type _ItVal;
698 _PathCVT<_ItVal>::__append_range(__pn_, __first, __last);
701 // TODO Implement locale conversions.
702 template <class _Source,
703 class = _EnableIfPathable<_Source, void>
705 path(const _Source& __src, const locale& __loc);
706 template <class _InputIt>
707 path(_InputIt __first, _InputIt _last, const locale& __loc);
709 _LIBCPP_INLINE_VISIBILITY
713 _LIBCPP_INLINE_VISIBILITY
714 path& operator=(const path& __p) {
719 _LIBCPP_INLINE_VISIBILITY
720 path& operator=(path&& __p) _NOEXCEPT {
721 __pn_ = _VSTD::move(__p.__pn_);
725 template <class = void>
726 _LIBCPP_INLINE_VISIBILITY
727 path& operator=(string_type&& __s) _NOEXCEPT {
728 __pn_ = _VSTD::move(__s);
732 _LIBCPP_INLINE_VISIBILITY
733 path& assign(string_type&& __s) _NOEXCEPT {
734 __pn_ = _VSTD::move(__s);
738 template <class _Source>
739 _LIBCPP_INLINE_VISIBILITY
740 _EnableIfPathable<_Source>
741 operator=(const _Source& __src)
742 { return this->assign(__src); }
745 template <class _Source>
746 _EnableIfPathable<_Source>
747 assign(const _Source& __src) {
749 _SourceCVT<_Source>::__append_source(__pn_, __src);
753 template <class _InputIt>
754 path& assign(_InputIt __first, _InputIt __last) {
755 typedef typename iterator_traits<_InputIt>::value_type _ItVal;
757 _PathCVT<_ItVal>::__append_range(__pn_, __first, __last);
762 template <class _ECharT>
763 void __append_sep_if_needed(_ECharT __first_or_null) {
764 const _ECharT __null_val = {};
765 bool __append_sep = !empty() &&
766 !__is_separator(__pn_.back()) &&
767 __first_or_null != __null_val && // non-empty
768 !__is_separator(__first_or_null);
770 __pn_ += preferred_separator;
775 path& operator/=(const path& __p) {
776 _LIBCPP_ASSERT(!__p.has_root_name(),
777 "cannot append to a path with a root name");
778 __append_sep_if_needed(__p.empty() ? char{} : __p.__pn_[0]);
779 __pn_ += __p.native();
783 template <class _Source>
784 _LIBCPP_INLINE_VISIBILITY
785 _EnableIfPathable<_Source>
786 operator/=(const _Source& __src) {
787 return this->append(__src);
790 template <class _Source>
791 _EnableIfPathable<_Source>
792 append(const _Source& __src) {
793 using _Traits = __is_pathable<_Source>;
794 using _CVT = _PathCVT<_SourceChar<_Source>>;
795 __append_sep_if_needed(_Traits::__first_or_null(__src));
796 _CVT::__append_source(__pn_, __src);
800 template <class _InputIt>
801 path& append(_InputIt __first, _InputIt __last) {
802 typedef typename iterator_traits<_InputIt>::value_type _ItVal;
803 static_assert(__can_convert_char<_ItVal>::value, "Must convertible");
804 using _CVT = _PathCVT<_ItVal>;
805 if (__first != __last) {
806 __append_sep_if_needed(*__first);
807 _CVT::__append_range(__pn_, __first, __last);
813 _LIBCPP_INLINE_VISIBILITY
814 path& operator+=(const path& __x) {
819 _LIBCPP_INLINE_VISIBILITY
820 path& operator+=(const string_type& __x) {
825 _LIBCPP_INLINE_VISIBILITY
826 path& operator+=(__string_view __x) {
831 _LIBCPP_INLINE_VISIBILITY
832 path& operator+=(const value_type* __x) {
837 _LIBCPP_INLINE_VISIBILITY
838 path& operator+=(value_type __x) {
843 template <class _ECharT>
844 typename enable_if<__can_convert_char<_ECharT>::value, path&>::type
845 operator+=(_ECharT __x)
847 basic_string<_ECharT> __tmp;
849 _PathCVT<_ECharT>::__append_source(__pn_, __tmp);
853 template <class _Source>
854 _EnableIfPathable<_Source>
855 operator+=(const _Source& __x) {
856 return this->concat(__x);
859 template <class _Source>
860 _EnableIfPathable<_Source>
861 concat(const _Source& __x) {
862 _SourceCVT<_Source>::__append_source(__pn_, __x);
866 template <class _InputIt>
867 path& concat(_InputIt __first, _InputIt __last) {
868 typedef typename iterator_traits<_InputIt>::value_type _ItVal;
869 _PathCVT<_ItVal>::__append_range(__pn_, __first, __last);
874 _LIBCPP_INLINE_VISIBILITY
875 void clear() _NOEXCEPT {
879 path& make_preferred() { return *this; }
881 _LIBCPP_INLINE_VISIBILITY
882 path& remove_filename() {
883 if (__pn_.size() == __root_path_raw().size())
886 __pn_ = __parent_path();
890 path& replace_filename(const path& __replacement) {
892 return (*this /= __replacement);
895 path& replace_extension(const path& __replacement = path());
897 _LIBCPP_INLINE_VISIBILITY
898 void swap(path& __rhs) _NOEXCEPT {
899 __pn_.swap(__rhs.__pn_);
902 // native format observers
903 _LIBCPP_INLINE_VISIBILITY
904 const string_type& native() const _NOEXCEPT {
908 _LIBCPP_INLINE_VISIBILITY
909 const value_type* c_str() const _NOEXCEPT { return __pn_.c_str(); }
911 _LIBCPP_INLINE_VISIBILITY operator string_type() const { return __pn_; }
913 template <class _ECharT, class _Traits = char_traits<_ECharT>,
914 class _Allocator = allocator<_ECharT> >
915 basic_string<_ECharT, _Traits, _Allocator>
916 string(const _Allocator& __a = _Allocator()) const {
917 using _CVT = __widen_from_utf8<sizeof(_ECharT)*__CHAR_BIT__>;
918 using _Str = basic_string<_ECharT, _Traits, _Allocator>;
920 __s.reserve(__pn_.size());
921 _CVT()(back_inserter(__s), __pn_.data(), __pn_.data() + __pn_.size());
925 _LIBCPP_INLINE_VISIBILITY std::string string() const { return __pn_; }
926 _LIBCPP_INLINE_VISIBILITY std::wstring wstring() const { return string<wchar_t>(); }
927 _LIBCPP_INLINE_VISIBILITY std::string u8string() const { return __pn_; }
928 _LIBCPP_INLINE_VISIBILITY std::u16string u16string() const { return string<char16_t>(); }
929 _LIBCPP_INLINE_VISIBILITY std::u32string u32string() const { return string<char32_t>(); }
931 // generic format observers
932 template <class _ECharT, class _Traits = char_traits<_ECharT>,
933 class _Allocator = allocator<_ECharT>
935 basic_string<_ECharT, _Traits, _Allocator>
936 generic_string(const _Allocator& __a = _Allocator()) const {
937 return string<_ECharT, _Traits, _Allocator>(__a);
940 std::string generic_string() const { return __pn_; }
941 std::wstring generic_wstring() const { return string<wchar_t>(); }
942 std::string generic_u8string() const { return __pn_; }
943 std::u16string generic_u16string() const { return string<char16_t>(); }
944 std::u32string generic_u32string() const { return string<char32_t>(); }
947 int __compare(__string_view) const;
948 __string_view __root_name() const;
949 __string_view __root_directory() const;
950 __string_view __root_path_raw() const;
951 __string_view __relative_path() const;
952 __string_view __parent_path() const;
953 __string_view __filename() const;
954 __string_view __stem() const;
955 __string_view __extension() const;
959 _LIBCPP_INLINE_VISIBILITY int compare(const path& __p) const _NOEXCEPT { return __compare(__p.__pn_);}
960 _LIBCPP_INLINE_VISIBILITY int compare(const string_type& __s) const { return __compare(__s); }
961 _LIBCPP_INLINE_VISIBILITY int compare(__string_view __s) const { return __compare(__s); }
962 _LIBCPP_INLINE_VISIBILITY int compare(const value_type* __s) const { return __compare(__s); }
965 _LIBCPP_INLINE_VISIBILITY path root_name() const { return string_type(__root_name()); }
966 _LIBCPP_INLINE_VISIBILITY path root_directory() const { return string_type(__root_directory()); }
967 _LIBCPP_INLINE_VISIBILITY path root_path() const { return root_name().append(string_type(__root_directory())); }
968 _LIBCPP_INLINE_VISIBILITY path relative_path() const { return string_type(__relative_path()); }
969 _LIBCPP_INLINE_VISIBILITY path parent_path() const { return string_type(__parent_path()); }
970 _LIBCPP_INLINE_VISIBILITY path filename() const { return string_type(__filename()); }
971 _LIBCPP_INLINE_VISIBILITY path stem() const { return string_type(__stem());}
972 _LIBCPP_INLINE_VISIBILITY path extension() const { return string_type(__extension()); }
975 _LIBCPP_NODISCARD_AFTER_CXX17 _LIBCPP_INLINE_VISIBILITY
976 bool empty() const _NOEXCEPT { return __pn_.empty(); }
978 _LIBCPP_INLINE_VISIBILITY bool has_root_name() const { return !__root_name().empty(); }
979 _LIBCPP_INLINE_VISIBILITY bool has_root_directory() const { return !__root_directory().empty(); }
980 _LIBCPP_INLINE_VISIBILITY bool has_root_path() const { return !__root_path_raw().empty(); }
981 _LIBCPP_INLINE_VISIBILITY bool has_relative_path() const { return !__relative_path().empty(); }
982 _LIBCPP_INLINE_VISIBILITY bool has_parent_path() const { return !__parent_path().empty(); }
983 _LIBCPP_INLINE_VISIBILITY bool has_filename() const { return !__filename().empty(); }
984 _LIBCPP_INLINE_VISIBILITY bool has_stem() const { return !__stem().empty(); }
985 _LIBCPP_INLINE_VISIBILITY bool has_extension() const { return !__extension().empty(); }
987 _LIBCPP_INLINE_VISIBILITY bool is_absolute() const { return has_root_directory(); }
988 _LIBCPP_INLINE_VISIBILITY bool is_relative() const { return !is_absolute(); }
991 class _LIBCPP_TYPE_VIS iterator;
992 typedef iterator const_iterator;
994 iterator begin() const;
995 iterator end() const;
998 inline _LIBCPP_INLINE_VISIBILITY
999 path& __assign_view(__string_view const& __s) noexcept { __pn_ = string_type(__s); return *this; }
1003 inline _LIBCPP_ALWAYS_INLINE
1004 void swap(path& __lhs, path& __rhs) _NOEXCEPT {
1009 size_t hash_value(const path& __p) _NOEXCEPT;
1011 inline _LIBCPP_INLINE_VISIBILITY
1012 bool operator==(const path& __lhs, const path& __rhs) _NOEXCEPT
1013 { return __lhs.compare(__rhs) == 0; }
1015 inline _LIBCPP_INLINE_VISIBILITY
1016 bool operator!=(const path& __lhs, const path& __rhs) _NOEXCEPT
1017 { return __lhs.compare(__rhs) != 0; }
1019 inline _LIBCPP_INLINE_VISIBILITY
1020 bool operator<(const path& __lhs, const path& __rhs) _NOEXCEPT
1021 { return __lhs.compare(__rhs) < 0; }
1023 inline _LIBCPP_INLINE_VISIBILITY
1024 bool operator<=(const path& __lhs, const path& __rhs) _NOEXCEPT
1025 { return __lhs.compare(__rhs) <= 0; }
1027 inline _LIBCPP_INLINE_VISIBILITY
1028 bool operator>(const path& __lhs, const path& __rhs) _NOEXCEPT
1029 { return __lhs.compare(__rhs) > 0; }
1031 inline _LIBCPP_INLINE_VISIBILITY
1032 bool operator>=(const path& __lhs, const path& __rhs) _NOEXCEPT
1033 { return __lhs.compare(__rhs) >= 0; }
1035 inline _LIBCPP_INLINE_VISIBILITY
1036 path operator/(const path& __lhs, const path& __rhs) {
1037 return path(__lhs) /= __rhs;
1040 template <class _CharT, class _Traits>
1041 _LIBCPP_INLINE_VISIBILITY
1042 typename enable_if<is_same<_CharT, char>::value &&
1043 is_same<_Traits, char_traits<char>>::value,
1044 basic_ostream<_CharT, _Traits>&
1046 operator<<(basic_ostream<_CharT, _Traits>& __os, const path& __p) {
1047 __os << std::__quoted(__p.native());
1051 template <class _CharT, class _Traits>
1052 _LIBCPP_INLINE_VISIBILITY
1053 typename enable_if<!is_same<_CharT, char>::value ||
1054 !is_same<_Traits, char_traits<char>>::value,
1055 basic_ostream<_CharT, _Traits>&
1057 operator<<(basic_ostream<_CharT, _Traits>& __os, const path& __p) {
1058 __os << std::__quoted(__p.string<_CharT, _Traits>());
1062 template <class _CharT, class _Traits>
1063 _LIBCPP_INLINE_VISIBILITY
1064 basic_istream<_CharT, _Traits>&
1065 operator>>(basic_istream<_CharT, _Traits>& __is, path& __p)
1067 basic_string<_CharT, _Traits> __tmp;
1068 __is >> __quoted(__tmp);
1073 template <class _Source>
1074 _LIBCPP_INLINE_VISIBILITY
1075 typename enable_if<__is_pathable<_Source>::value, path>::type
1076 u8path(const _Source& __s){
1077 static_assert(is_same<typename __is_pathable<_Source>::__char_type, char>::value,
1078 "u8path(Source const&) requires Source have a character type of type 'char'");
1082 template <class _InputIt>
1083 _LIBCPP_INLINE_VISIBILITY
1084 typename enable_if<__is_pathable<_InputIt>::value, path>::type
1085 u8path(_InputIt __f, _InputIt __l) {
1086 static_assert(is_same<typename __is_pathable<_InputIt>::__char_type, char>::value,
1087 "u8path(Iter, Iter) requires Iter have a value_type of type 'char'");
1088 return path(__f, __l);
1091 class _LIBCPP_TYPE_VIS path::iterator
1094 typedef bidirectional_iterator_tag iterator_category;
1096 typedef path value_type;
1097 typedef std::ptrdiff_t difference_type;
1098 typedef const path* pointer;
1099 typedef const path& reference;
1101 typedef void __stashing_iterator_tag; // See reverse_iterator and __is_stashing_iterator
1103 _LIBCPP_INLINE_VISIBILITY
1104 iterator() : __stashed_elem_(), __path_ptr_(nullptr),
1105 __entry_(), __state_(__singular) {}
1107 iterator(const iterator&) = default;
1108 ~iterator() = default;
1110 iterator& operator=(const iterator&) = default;
1112 _LIBCPP_INLINE_VISIBILITY
1113 reference operator*() const {
1114 return __stashed_elem_;
1117 _LIBCPP_INLINE_VISIBILITY
1118 pointer operator->() const {
1119 return &__stashed_elem_;
1122 _LIBCPP_INLINE_VISIBILITY
1123 iterator& operator++() {
1124 _LIBCPP_ASSERT(__state_ != __singular,
1125 "attempting to increment a singular iterator");
1126 _LIBCPP_ASSERT(__state_ != __at_end,
1127 "attempting to increment the end iterator");
1128 return __increment();
1131 _LIBCPP_INLINE_VISIBILITY
1132 iterator operator++(int) {
1133 iterator __it(*this);
1138 _LIBCPP_INLINE_VISIBILITY
1139 iterator& operator--() {
1140 _LIBCPP_ASSERT(__state_ != __singular,
1141 "attempting to decrement a singular iterator");
1142 _LIBCPP_ASSERT(__entry_.data() != __path_ptr_->native().data(),
1143 "attempting to decrement the begin iterator");
1144 return __decrement();
1147 _LIBCPP_INLINE_VISIBILITY
1148 iterator operator--(int) {
1149 iterator __it(*this);
1157 static constexpr unsigned char __singular = 0;
1158 static constexpr unsigned char __at_end = 6;
1160 inline _LIBCPP_INLINE_VISIBILITY
1161 friend bool operator==(const iterator&, const iterator&);
1163 iterator& __increment();
1164 iterator& __decrement();
1166 path __stashed_elem_;
1167 const path* __path_ptr_;
1168 path::__string_view __entry_;
1169 unsigned char __state_;
1172 inline _LIBCPP_INLINE_VISIBILITY
1173 bool operator==(const path::iterator& __lhs, const path::iterator& __rhs) {
1174 return __lhs.__path_ptr_ == __rhs.__path_ptr_ &&
1175 __lhs.__entry_.data() == __rhs.__entry_.data();
1178 inline _LIBCPP_INLINE_VISIBILITY
1179 bool operator!=(const path::iterator& __lhs, const path::iterator& __rhs) {
1180 return !(__lhs == __rhs);
1183 class _LIBCPP_EXCEPTION_ABI filesystem_error : public system_error
1186 _LIBCPP_INLINE_VISIBILITY
1187 filesystem_error(const string& __what, error_code __ec)
1188 : system_error(__ec, __what),
1189 __paths_(make_shared<_Storage>(path(), path()))
1192 _LIBCPP_INLINE_VISIBILITY
1193 filesystem_error(const string& __what, const path& __p1, error_code __ec)
1194 : system_error(__ec, __what),
1195 __paths_(make_shared<_Storage>(__p1, path()))
1198 _LIBCPP_INLINE_VISIBILITY
1199 filesystem_error(const string& __what, const path& __p1, const path& __p2,
1201 : system_error(__ec, __what),
1202 __paths_(make_shared<_Storage>(__p1, __p2))
1205 _LIBCPP_INLINE_VISIBILITY
1206 const path& path1() const _NOEXCEPT {
1207 return __paths_->first;
1210 _LIBCPP_INLINE_VISIBILITY
1211 const path& path2() const _NOEXCEPT {
1212 return __paths_->second;
1215 ~filesystem_error() override; // key function
1217 // TODO(ericwf): Create a custom error message.
1218 //const char* what() const _NOEXCEPT;
1221 typedef pair<path, path> _Storage;
1222 shared_ptr<_Storage> __paths_;
1225 template <class... _Args>
1226 _LIBCPP_NORETURN inline _LIBCPP_ALWAYS_INLINE
1227 #ifndef _LIBCPP_NO_EXCEPTIONS
1228 void __throw_filesystem_error(_Args && ...__args)
1230 throw filesystem_error(std::forward<_Args>(__args)...);
1233 void __throw_filesystem_error(_Args&&...)
1240 // operational functions
1243 path __canonical(const path&, const path&, error_code *__ec=nullptr);
1245 void __copy(const path& __from, const path& __to, copy_options __opt,
1246 error_code *__ec=nullptr);
1248 bool __copy_file(const path& __from, const path& __to, copy_options __opt,
1249 error_code *__ec=nullptr);
1251 void __copy_symlink(const path& __existing_symlink, const path& __new_symlink,
1252 error_code *__ec=nullptr);
1254 bool __create_directories(const path& p, error_code *ec=nullptr);
1256 bool __create_directory(const path& p, error_code *ec=nullptr);
1258 bool __create_directory(const path& p, const path & attributes,
1259 error_code *ec=nullptr);
1261 void __create_directory_symlink(const path& __to, const path& __new_symlink,
1262 error_code *__ec=nullptr);
1264 void __create_hard_link(const path& __to, const path& __new_hard_link,
1265 error_code *__ec=nullptr);
1267 void __create_symlink(const path& __to, const path& __new_symlink,
1268 error_code *__ec=nullptr);
1270 path __current_path(error_code *__ec=nullptr);
1272 void __current_path(const path&, error_code *__ec=nullptr);
1274 bool __equivalent(const path&, const path&, error_code *__ec=nullptr);
1276 uintmax_t __file_size(const path&, error_code *__ec=nullptr);
1278 uintmax_t __hard_link_count(const path&, error_code *__ec=nullptr);
1280 bool __fs_is_empty(const path& p, error_code *ec=nullptr);
1282 file_time_type __last_write_time(const path& p, error_code *ec=nullptr);
1284 void __last_write_time(const path& p, file_time_type new_time,
1285 error_code *ec=nullptr);
1287 void __permissions(const path& p, perms prms, error_code *ec=nullptr);
1289 path __read_symlink(const path& p, error_code *ec=nullptr);
1291 bool __remove(const path& p, error_code *ec=nullptr);
1293 uintmax_t __remove_all(const path& p, error_code *ec=nullptr);
1295 void __rename(const path& from, const path& to, error_code *ec=nullptr);
1297 void __resize_file(const path& p, uintmax_t size, error_code *ec=nullptr);
1299 space_info __space(const path&, error_code *__ec=nullptr);
1301 file_status __status(const path&, error_code *__ec=nullptr);
1303 file_status __symlink_status(const path&, error_code *__ec=nullptr);
1305 path __system_complete(const path&, error_code *__ec=nullptr);
1307 path __temp_directory_path(error_code *__ec=nullptr);
1309 inline _LIBCPP_INLINE_VISIBILITY
1310 path current_path() {
1311 return __current_path();
1314 inline _LIBCPP_INLINE_VISIBILITY
1315 path current_path(error_code& __ec) {
1316 return __current_path(&__ec);
1319 inline _LIBCPP_INLINE_VISIBILITY
1320 void current_path(const path& __p) {
1321 __current_path(__p);
1324 inline _LIBCPP_INLINE_VISIBILITY
1325 void current_path(const path& __p, error_code& __ec) _NOEXCEPT {
1326 __current_path(__p, &__ec);
1330 path absolute(const path&, const path& __p2 = current_path());
1332 inline _LIBCPP_INLINE_VISIBILITY
1333 path canonical(const path& __p, const path& __base = current_path()) {
1334 return __canonical(__p, __base);
1337 inline _LIBCPP_INLINE_VISIBILITY
1338 path canonical(const path& __p, error_code& __ec) {
1339 path __base = __current_path(&__ec);
1340 if (__ec) return {};
1341 return __canonical(__p, __base, &__ec);
1344 inline _LIBCPP_INLINE_VISIBILITY
1345 path canonical(const path& __p, const path& __base, error_code& __ec) {
1346 return __canonical(__p, __base, &__ec);
1349 inline _LIBCPP_INLINE_VISIBILITY
1350 void copy(const path& __from, const path& __to) {
1351 __copy(__from, __to, copy_options::none);
1354 inline _LIBCPP_INLINE_VISIBILITY
1355 void copy(const path& __from, const path& __to, error_code& __ec) {
1356 __copy(__from, __to, copy_options::none, &__ec);
1359 inline _LIBCPP_INLINE_VISIBILITY
1360 void copy(const path& __from, const path& __to, copy_options __opt) {
1361 __copy(__from, __to, __opt);
1364 inline _LIBCPP_INLINE_VISIBILITY
1365 void copy(const path& __from, const path& __to,
1366 copy_options __opt, error_code& __ec) {
1367 __copy(__from, __to, __opt, &__ec);
1370 inline _LIBCPP_INLINE_VISIBILITY
1371 bool copy_file(const path& __from, const path& __to) {
1372 return __copy_file(__from, __to, copy_options::none);
1375 inline _LIBCPP_INLINE_VISIBILITY
1376 bool copy_file(const path& __from, const path& __to, error_code& __ec) _NOEXCEPT {
1377 return __copy_file(__from, __to, copy_options::none, &__ec);
1380 inline _LIBCPP_INLINE_VISIBILITY
1381 bool copy_file(const path& __from, const path& __to, copy_options __opt) {
1382 return __copy_file(__from, __to, __opt);
1385 inline _LIBCPP_INLINE_VISIBILITY
1386 bool copy_file(const path& __from, const path& __to,
1387 copy_options __opt, error_code& __ec) _NOEXCEPT {
1388 return __copy_file(__from, __to, __opt, &__ec);
1391 inline _LIBCPP_INLINE_VISIBILITY
1392 void copy_symlink(const path& __existing, const path& __new) {
1393 __copy_symlink(__existing, __new);
1396 inline _LIBCPP_INLINE_VISIBILITY
1397 void copy_symlink(const path& __ext, const path& __new, error_code& __ec) _NOEXCEPT {
1398 __copy_symlink(__ext, __new, &__ec);
1401 inline _LIBCPP_INLINE_VISIBILITY
1402 bool create_directories(const path& __p) {
1403 return __create_directories(__p);
1406 inline _LIBCPP_INLINE_VISIBILITY
1407 bool create_directories(const path& __p, error_code& __ec) _NOEXCEPT {
1408 return __create_directories(__p, &__ec);
1411 inline _LIBCPP_INLINE_VISIBILITY
1412 bool create_directory(const path& __p) {
1413 return __create_directory(__p);
1416 inline _LIBCPP_INLINE_VISIBILITY
1417 bool create_directory(const path& __p, error_code& __ec) _NOEXCEPT {
1418 return __create_directory(__p, &__ec);
1421 inline _LIBCPP_INLINE_VISIBILITY
1422 bool create_directory(const path& __p, const path& __attrs) {
1423 return __create_directory(__p, __attrs);
1426 inline _LIBCPP_INLINE_VISIBILITY
1427 bool create_directory(const path& __p, const path& __attrs, error_code& __ec) _NOEXCEPT {
1428 return __create_directory(__p, __attrs, &__ec);
1431 inline _LIBCPP_INLINE_VISIBILITY
1432 void create_directory_symlink(const path& __to, const path& __new) {
1433 __create_directory_symlink(__to, __new);
1436 inline _LIBCPP_INLINE_VISIBILITY
1437 void create_directory_symlink(const path& __to, const path& __new,
1438 error_code& __ec) _NOEXCEPT {
1439 __create_directory_symlink(__to, __new, &__ec);
1442 inline _LIBCPP_INLINE_VISIBILITY
1443 void create_hard_link(const path& __to, const path& __new) {
1444 __create_hard_link(__to, __new);
1447 inline _LIBCPP_INLINE_VISIBILITY
1448 void create_hard_link(const path& __to, const path& __new, error_code& __ec) _NOEXCEPT {
1449 __create_hard_link(__to, __new, &__ec);
1452 inline _LIBCPP_INLINE_VISIBILITY
1453 void create_symlink(const path& __to, const path& __new) {
1454 __create_symlink(__to, __new);
1457 inline _LIBCPP_INLINE_VISIBILITY
1458 void create_symlink(const path& __to, const path& __new, error_code& __ec) _NOEXCEPT {
1459 return __create_symlink(__to, __new, &__ec);
1462 inline _LIBCPP_INLINE_VISIBILITY
1463 bool status_known(file_status __s) _NOEXCEPT {
1464 return __s.type() != file_type::none;
1467 inline _LIBCPP_INLINE_VISIBILITY
1468 bool exists(file_status __s) _NOEXCEPT {
1469 return status_known(__s) && __s.type() != file_type::not_found;
1472 inline _LIBCPP_INLINE_VISIBILITY
1473 bool exists(const path& __p) {
1474 return exists(__status(__p));
1477 inline _LIBCPP_INLINE_VISIBILITY
1478 bool exists(const path& __p, error_code& __ec) _NOEXCEPT {
1479 auto __s = __status(__p, &__ec);
1480 if (status_known(__s)) __ec.clear();
1484 inline _LIBCPP_INLINE_VISIBILITY
1485 bool equivalent(const path& __p1, const path& __p2) {
1486 return __equivalent(__p1, __p2);
1489 inline _LIBCPP_INLINE_VISIBILITY
1490 bool equivalent(const path& __p1, const path& __p2, error_code& __ec) _NOEXCEPT {
1491 return __equivalent(__p1, __p2, &__ec);
1494 inline _LIBCPP_INLINE_VISIBILITY
1495 uintmax_t file_size(const path& __p) {
1496 return __file_size(__p);
1499 inline _LIBCPP_INLINE_VISIBILITY
1500 uintmax_t file_size(const path& __p, error_code& __ec) _NOEXCEPT {
1501 return __file_size(__p, &__ec);
1504 inline _LIBCPP_INLINE_VISIBILITY
1505 uintmax_t hard_link_count(const path& __p) {
1506 return __hard_link_count(__p);
1509 inline _LIBCPP_INLINE_VISIBILITY
1510 uintmax_t hard_link_count(const path& __p, error_code& __ec) _NOEXCEPT {
1511 return __hard_link_count(__p, &__ec);
1514 inline _LIBCPP_INLINE_VISIBILITY
1515 bool is_block_file(file_status __s) _NOEXCEPT {
1516 return __s.type() == file_type::block;
1519 inline _LIBCPP_INLINE_VISIBILITY
1520 bool is_block_file(const path& __p) {
1521 return is_block_file(__status(__p));
1524 inline _LIBCPP_INLINE_VISIBILITY
1525 bool is_block_file(const path& __p, error_code& __ec) _NOEXCEPT {
1526 return is_block_file(__status(__p, &__ec));
1529 inline _LIBCPP_INLINE_VISIBILITY
1530 bool is_character_file(file_status __s) _NOEXCEPT {
1531 return __s.type() == file_type::character;
1534 inline _LIBCPP_INLINE_VISIBILITY
1535 bool is_character_file(const path& __p) {
1536 return is_character_file(__status(__p));
1539 inline _LIBCPP_INLINE_VISIBILITY
1540 bool is_character_file(const path& __p, error_code& __ec) _NOEXCEPT {
1541 return is_character_file(__status(__p, &__ec));
1544 inline _LIBCPP_INLINE_VISIBILITY
1545 bool is_directory(file_status __s) _NOEXCEPT {
1546 return __s.type() == file_type::directory;
1549 inline _LIBCPP_INLINE_VISIBILITY
1550 bool is_directory(const path& __p) {
1551 return is_directory(__status(__p));
1554 inline _LIBCPP_INLINE_VISIBILITY
1555 bool is_directory(const path& __p, error_code& __ec) _NOEXCEPT {
1556 return is_directory(__status(__p, &__ec));
1559 inline _LIBCPP_INLINE_VISIBILITY
1560 bool is_empty(const path& __p) {
1561 return __fs_is_empty(__p);
1564 inline _LIBCPP_INLINE_VISIBILITY
1565 bool is_empty(const path& __p, error_code& __ec) {
1566 return __fs_is_empty(__p, &__ec);
1569 inline _LIBCPP_INLINE_VISIBILITY
1570 bool is_fifo(file_status __s) _NOEXCEPT {
1571 return __s.type() == file_type::fifo;
1573 inline _LIBCPP_INLINE_VISIBILITY
1574 bool is_fifo(const path& __p) {
1575 return is_fifo(__status(__p));
1578 inline _LIBCPP_INLINE_VISIBILITY
1579 bool is_fifo(const path& __p, error_code& __ec) _NOEXCEPT {
1580 return is_fifo(__status(__p, &__ec));
1583 inline _LIBCPP_INLINE_VISIBILITY
1584 bool is_regular_file(file_status __s) _NOEXCEPT {
1585 return __s.type() == file_type::regular;
1588 inline _LIBCPP_INLINE_VISIBILITY
1589 bool is_regular_file(const path& __p) {
1590 return is_regular_file(__status(__p));
1593 inline _LIBCPP_INLINE_VISIBILITY
1594 bool is_regular_file(const path& __p, error_code& __ec) _NOEXCEPT {
1595 return is_regular_file(__status(__p, &__ec));
1598 inline _LIBCPP_INLINE_VISIBILITY
1599 bool is_socket(file_status __s) _NOEXCEPT {
1600 return __s.type() == file_type::socket;
1603 inline _LIBCPP_INLINE_VISIBILITY
1604 bool is_socket(const path& __p) {
1605 return is_socket(__status(__p));
1608 inline _LIBCPP_INLINE_VISIBILITY
1609 bool is_socket(const path& __p, error_code& __ec) _NOEXCEPT {
1610 return is_socket(__status(__p, &__ec));
1613 inline _LIBCPP_INLINE_VISIBILITY
1614 bool is_symlink(file_status __s) _NOEXCEPT {
1615 return __s.type() == file_type::symlink;
1618 inline _LIBCPP_INLINE_VISIBILITY
1619 bool is_symlink(const path& __p) {
1620 return is_symlink(__symlink_status(__p));
1623 inline _LIBCPP_INLINE_VISIBILITY
1624 bool is_symlink(const path& __p, error_code& __ec) _NOEXCEPT {
1625 return is_symlink(__symlink_status(__p, &__ec));
1628 inline _LIBCPP_INLINE_VISIBILITY
1629 bool is_other(file_status __s) _NOEXCEPT {
1631 && !is_regular_file(__s) && !is_directory(__s) && !is_symlink(__s);
1634 inline _LIBCPP_INLINE_VISIBILITY
1635 bool is_other(const path& __p) {
1636 return is_other(__status(__p));
1639 inline _LIBCPP_INLINE_VISIBILITY
1640 bool is_other(const path& __p, error_code& __ec) _NOEXCEPT {
1641 return is_other(__status(__p, &__ec));
1644 inline _LIBCPP_INLINE_VISIBILITY
1645 file_time_type last_write_time(const path& __p) {
1646 return __last_write_time(__p);
1649 inline _LIBCPP_INLINE_VISIBILITY
1650 file_time_type last_write_time(const path& __p, error_code& __ec) _NOEXCEPT {
1651 return __last_write_time(__p, &__ec);
1654 inline _LIBCPP_INLINE_VISIBILITY
1655 void last_write_time(const path& __p, file_time_type __t) {
1656 __last_write_time(__p, __t);
1659 inline _LIBCPP_INLINE_VISIBILITY
1660 void last_write_time(const path& __p, file_time_type __t, error_code& __ec) _NOEXCEPT {
1661 __last_write_time(__p, __t, &__ec);
1664 inline _LIBCPP_INLINE_VISIBILITY
1665 void permissions(const path& __p, perms __prms) {
1666 __permissions(__p, __prms);
1669 inline _LIBCPP_INLINE_VISIBILITY
1670 void permissions(const path& __p, perms __prms, error_code& __ec) {
1671 __permissions(__p, __prms, &__ec);
1674 inline _LIBCPP_INLINE_VISIBILITY
1675 path read_symlink(const path& __p) {
1676 return __read_symlink(__p);
1679 inline _LIBCPP_INLINE_VISIBILITY
1680 path read_symlink(const path& __p, error_code& __ec) {
1681 return __read_symlink(__p, &__ec);
1684 inline _LIBCPP_INLINE_VISIBILITY
1685 bool remove(const path& __p) {
1686 return __remove(__p);
1689 inline _LIBCPP_INLINE_VISIBILITY
1690 bool remove(const path& __p, error_code& __ec) _NOEXCEPT {
1691 return __remove(__p, &__ec);
1694 inline _LIBCPP_INLINE_VISIBILITY
1695 uintmax_t remove_all(const path& __p) {
1696 return __remove_all(__p);
1699 inline _LIBCPP_INLINE_VISIBILITY
1700 uintmax_t remove_all(const path& __p, error_code& __ec) _NOEXCEPT {
1701 return __remove_all(__p, &__ec);
1704 inline _LIBCPP_INLINE_VISIBILITY
1705 void rename(const path& __from, const path& __to) {
1706 return __rename(__from, __to);
1709 inline _LIBCPP_INLINE_VISIBILITY
1710 void rename(const path& __from, const path& __to, error_code& __ec) _NOEXCEPT {
1711 return __rename(__from, __to, &__ec);
1714 inline _LIBCPP_INLINE_VISIBILITY
1715 void resize_file(const path& __p, uintmax_t __ns) {
1716 return __resize_file(__p, __ns);
1719 inline _LIBCPP_INLINE_VISIBILITY
1720 void resize_file(const path& __p, uintmax_t __ns, error_code& __ec) _NOEXCEPT {
1721 return __resize_file(__p, __ns, &__ec);
1724 inline _LIBCPP_INLINE_VISIBILITY
1725 space_info space(const path& __p) {
1726 return __space(__p);
1729 inline _LIBCPP_INLINE_VISIBILITY
1730 space_info space(const path& __p, error_code& __ec) _NOEXCEPT {
1731 return __space(__p, &__ec);
1734 inline _LIBCPP_INLINE_VISIBILITY
1735 file_status status(const path& __p) {
1736 return __status(__p);
1739 inline _LIBCPP_INLINE_VISIBILITY
1740 file_status status(const path& __p, error_code& __ec) _NOEXCEPT {
1741 return __status(__p, &__ec);
1744 inline _LIBCPP_INLINE_VISIBILITY
1745 file_status symlink_status(const path& __p) {
1746 return __symlink_status(__p);
1749 inline _LIBCPP_INLINE_VISIBILITY
1750 file_status symlink_status(const path& __p, error_code& __ec) _NOEXCEPT {
1751 return __symlink_status(__p, &__ec);
1754 inline _LIBCPP_INLINE_VISIBILITY
1755 path system_complete(const path& __p) {
1756 return __system_complete(__p);
1759 inline _LIBCPP_INLINE_VISIBILITY
1760 path system_complete(const path& __p, error_code& __ec) {
1761 return __system_complete(__p, &__ec);
1764 inline _LIBCPP_INLINE_VISIBILITY
1765 path temp_directory_path() {
1766 return __temp_directory_path();
1769 inline _LIBCPP_INLINE_VISIBILITY
1770 path temp_directory_path(error_code& __ec) {
1771 return __temp_directory_path(&__ec);
1775 class directory_entry
1777 typedef _VSTD_FS::path _Path;
1780 // constructors and destructors
1781 directory_entry() _NOEXCEPT = default;
1782 directory_entry(directory_entry const&) = default;
1783 directory_entry(directory_entry&&) _NOEXCEPT = default;
1785 _LIBCPP_INLINE_VISIBILITY
1786 explicit directory_entry(_Path const& __p) : __p_(__p) {}
1788 ~directory_entry() {}
1790 directory_entry& operator=(directory_entry const&) = default;
1791 directory_entry& operator=(directory_entry&&) _NOEXCEPT = default;
1793 _LIBCPP_INLINE_VISIBILITY
1794 void assign(_Path const& __p) {
1798 _LIBCPP_INLINE_VISIBILITY
1799 void replace_filename(_Path const& __p) {
1800 __p_ = __p_.parent_path() / __p;
1803 _LIBCPP_INLINE_VISIBILITY
1804 _Path const& path() const _NOEXCEPT {
1808 _LIBCPP_INLINE_VISIBILITY
1809 operator const _Path&() const _NOEXCEPT {
1813 _LIBCPP_INLINE_VISIBILITY
1814 file_status status() const {
1815 return _VSTD_FS::status(__p_);
1818 _LIBCPP_INLINE_VISIBILITY
1819 file_status status(error_code& __ec) const _NOEXCEPT {
1820 return _VSTD_FS::status(__p_, __ec);
1823 _LIBCPP_INLINE_VISIBILITY
1824 file_status symlink_status() const {
1825 return _VSTD_FS::symlink_status(__p_);
1828 _LIBCPP_INLINE_VISIBILITY
1829 file_status symlink_status(error_code& __ec) const _NOEXCEPT {
1830 return _VSTD_FS::symlink_status(__p_, __ec);
1833 _LIBCPP_INLINE_VISIBILITY
1834 bool operator< (directory_entry const& __rhs) const _NOEXCEPT {
1835 return __p_ < __rhs.__p_;
1838 _LIBCPP_INLINE_VISIBILITY
1839 bool operator==(directory_entry const& __rhs) const _NOEXCEPT {
1840 return __p_ == __rhs.__p_;
1843 _LIBCPP_INLINE_VISIBILITY
1844 bool operator!=(directory_entry const& __rhs) const _NOEXCEPT {
1845 return __p_ != __rhs.__p_;
1848 _LIBCPP_INLINE_VISIBILITY
1849 bool operator<=(directory_entry const& __rhs) const _NOEXCEPT {
1850 return __p_ <= __rhs.__p_;
1853 _LIBCPP_INLINE_VISIBILITY
1854 bool operator> (directory_entry const& __rhs) const _NOEXCEPT {
1855 return __p_ > __rhs.__p_;
1858 _LIBCPP_INLINE_VISIBILITY
1859 bool operator>=(directory_entry const& __rhs) const _NOEXCEPT {
1860 return __p_ >= __rhs.__p_;
1867 class directory_iterator;
1868 class recursive_directory_iterator;
1871 class __dir_element_proxy {
1874 inline _LIBCPP_INLINE_VISIBILITY
1875 directory_entry operator*() { return _VSTD::move(__elem_); }
1878 friend class directory_iterator;
1879 friend class recursive_directory_iterator;
1880 explicit __dir_element_proxy(directory_entry const& __e) : __elem_(__e) {}
1881 __dir_element_proxy(__dir_element_proxy&& __o) : __elem_(_VSTD::move(__o.__elem_)) {}
1882 directory_entry __elem_;
1885 class directory_iterator
1888 typedef directory_entry value_type;
1889 typedef ptrdiff_t difference_type;
1890 typedef value_type const* pointer;
1891 typedef value_type const& reference;
1892 typedef input_iterator_tag iterator_category;
1896 directory_iterator() _NOEXCEPT
1899 explicit directory_iterator(const path& __p)
1900 : directory_iterator(__p, nullptr)
1903 directory_iterator(const path& __p, directory_options __opts)
1904 : directory_iterator(__p, nullptr, __opts)
1907 directory_iterator(const path& __p, error_code& __ec)
1908 : directory_iterator(__p, &__ec)
1911 directory_iterator(const path& __p, directory_options __opts,
1913 : directory_iterator(__p, &__ec, __opts)
1916 directory_iterator(const directory_iterator&) = default;
1917 directory_iterator(directory_iterator&&) = default;
1918 directory_iterator& operator=(const directory_iterator&) = default;
1920 directory_iterator& operator=(directory_iterator&& __o) _NOEXCEPT {
1921 // non-default implementation provided to support self-move assign.
1923 __imp_ = _VSTD::move(__o.__imp_);
1928 ~directory_iterator() = default;
1930 const directory_entry& operator*() const {
1931 _LIBCPP_ASSERT(__imp_, "The end iterator cannot be dereferenced");
1932 return __dereference();
1935 const directory_entry* operator->() const
1938 directory_iterator& operator++()
1939 { return __increment(); }
1941 __dir_element_proxy operator++(int) {
1942 __dir_element_proxy __p(**this);
1947 directory_iterator& increment(error_code& __ec)
1948 { return __increment(&__ec); }
1951 inline _LIBCPP_INLINE_VISIBILITY
1952 friend bool operator==(const directory_iterator& __lhs,
1953 const directory_iterator& __rhs) _NOEXCEPT;
1955 // construct the dir_stream
1957 directory_iterator(const path&, error_code *,
1958 directory_options = directory_options::none);
1961 directory_iterator& __increment(error_code * __ec = nullptr);
1964 const directory_entry& __dereference() const;
1967 shared_ptr<__dir_stream> __imp_;
1971 inline _LIBCPP_INLINE_VISIBILITY
1972 bool operator==(const directory_iterator& __lhs,
1973 const directory_iterator& __rhs) _NOEXCEPT {
1974 return __lhs.__imp_ == __rhs.__imp_;
1977 inline _LIBCPP_INLINE_VISIBILITY
1978 bool operator!=(const directory_iterator& __lhs,
1979 const directory_iterator& __rhs) _NOEXCEPT {
1980 return !(__lhs == __rhs);
1983 // enable directory_iterator range-based for statements
1984 inline _LIBCPP_INLINE_VISIBILITY
1985 directory_iterator begin(directory_iterator __iter) _NOEXCEPT {
1989 inline _LIBCPP_INLINE_VISIBILITY
1990 directory_iterator end(const directory_iterator&) _NOEXCEPT {
1991 return directory_iterator();
1994 class recursive_directory_iterator {
1996 using value_type = directory_entry;
1997 using difference_type = std::ptrdiff_t;
1998 using pointer = directory_entry const *;
1999 using reference = directory_entry const &;
2000 using iterator_category = std::input_iterator_tag;
2003 // constructors and destructor
2004 _LIBCPP_INLINE_VISIBILITY
2005 recursive_directory_iterator() _NOEXCEPT
2009 _LIBCPP_INLINE_VISIBILITY
2010 explicit recursive_directory_iterator(const path& __p,
2011 directory_options __xoptions = directory_options::none)
2012 : recursive_directory_iterator(__p, __xoptions, nullptr)
2015 _LIBCPP_INLINE_VISIBILITY
2016 recursive_directory_iterator(const path& __p,
2017 directory_options __xoptions, error_code& __ec)
2018 : recursive_directory_iterator(__p, __xoptions, &__ec)
2021 _LIBCPP_INLINE_VISIBILITY
2022 recursive_directory_iterator(const path& __p, error_code& __ec)
2023 : recursive_directory_iterator(__p, directory_options::none, &__ec)
2026 recursive_directory_iterator(const recursive_directory_iterator&) = default;
2027 recursive_directory_iterator(recursive_directory_iterator&&) = default;
2029 recursive_directory_iterator &
2030 operator=(const recursive_directory_iterator&) = default;
2032 _LIBCPP_INLINE_VISIBILITY
2033 recursive_directory_iterator &
2034 operator=(recursive_directory_iterator&& __o) noexcept {
2035 // non-default implementation provided to support self-move assign.
2037 __imp_ = _VSTD::move(__o.__imp_);
2038 __rec_ = __o.__rec_;
2043 ~recursive_directory_iterator() = default;
2045 _LIBCPP_INLINE_VISIBILITY
2046 const directory_entry& operator*() const
2047 { return __dereference(); }
2049 _LIBCPP_INLINE_VISIBILITY
2050 const directory_entry* operator->() const
2051 { return &__dereference(); }
2053 recursive_directory_iterator& operator++()
2054 { return __increment(); }
2056 _LIBCPP_INLINE_VISIBILITY
2057 __dir_element_proxy operator++(int) {
2058 __dir_element_proxy __p(**this);
2063 _LIBCPP_INLINE_VISIBILITY
2064 recursive_directory_iterator& increment(error_code& __ec)
2065 { return __increment(&__ec); }
2067 _LIBCPP_FUNC_VIS directory_options options() const;
2068 _LIBCPP_FUNC_VIS int depth() const;
2070 _LIBCPP_INLINE_VISIBILITY
2071 void pop() { __pop(); }
2073 _LIBCPP_INLINE_VISIBILITY
2074 void pop(error_code& __ec)
2077 _LIBCPP_INLINE_VISIBILITY
2078 bool recursion_pending() const
2081 _LIBCPP_INLINE_VISIBILITY
2082 void disable_recursion_pending()
2086 recursive_directory_iterator(const path& __p, directory_options __opt,
2090 const directory_entry& __dereference() const;
2093 bool __try_recursion(error_code* __ec);
2096 void __advance(error_code* __ec=nullptr);
2099 recursive_directory_iterator& __increment(error_code *__ec=nullptr);
2102 void __pop(error_code* __ec=nullptr);
2104 inline _LIBCPP_INLINE_VISIBILITY
2105 friend bool operator==(const recursive_directory_iterator&,
2106 const recursive_directory_iterator&) _NOEXCEPT;
2108 struct __shared_imp;
2109 shared_ptr<__shared_imp> __imp_;
2111 }; // class recursive_directory_iterator
2114 inline _LIBCPP_INLINE_VISIBILITY
2115 bool operator==(const recursive_directory_iterator& __lhs,
2116 const recursive_directory_iterator& __rhs) _NOEXCEPT
2118 return __lhs.__imp_ == __rhs.__imp_;
2121 _LIBCPP_INLINE_VISIBILITY
2122 inline bool operator!=(const recursive_directory_iterator& __lhs,
2123 const recursive_directory_iterator& __rhs) _NOEXCEPT
2125 return !(__lhs == __rhs);
2127 // enable recursive_directory_iterator range-based for statements
2128 inline _LIBCPP_INLINE_VISIBILITY
2129 recursive_directory_iterator begin(recursive_directory_iterator __iter) _NOEXCEPT {
2133 inline _LIBCPP_INLINE_VISIBILITY
2134 recursive_directory_iterator end(const recursive_directory_iterator&) _NOEXCEPT {
2135 return recursive_directory_iterator();
2138 _LIBCPP_END_NAMESPACE_EXPERIMENTAL_FILESYSTEM
2140 #endif // _LIBCPP_EXPERIMENTAL_FILESYSTEM