libstdc++
experimental/bits/fs_path.h
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1 // Class filesystem::path -*- C++ -*-
2 
3 // Copyright (C) 2014-2022 Free Software Foundation, Inc.
4 //
5 // This file is part of the GNU ISO C++ Library. This library is free
6 // software; you can redistribute it and/or modify it under the
7 // terms of the GNU General Public License as published by the
8 // Free Software Foundation; either version 3, or (at your option)
9 // any later version.
10 
11 // This library is distributed in the hope that it will be useful,
12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 // GNU General Public License for more details.
15 
16 // Under Section 7 of GPL version 3, you are granted additional
17 // permissions described in the GCC Runtime Library Exception, version
18 // 3.1, as published by the Free Software Foundation.
19 
20 // You should have received a copy of the GNU General Public License and
21 // a copy of the GCC Runtime Library Exception along with this program;
22 // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
23 // <http://www.gnu.org/licenses/>.
24 
25 /** @file experimental/bits/fs_path.h
26  * This is an internal header file, included by other library headers.
27  * Do not attempt to use it directly. @headername{experimental/filesystem}
28  */
29 
30 #ifndef _GLIBCXX_EXPERIMENTAL_FS_PATH_H
31 #define _GLIBCXX_EXPERIMENTAL_FS_PATH_H 1
32 
33 #if __cplusplus < 201103L
34 # include <bits/c++0x_warning.h>
35 #else
36 
37 #include <utility>
38 #include <type_traits>
39 #include <vector>
40 #include <locale>
41 #include <iosfwd>
42 #include <codecvt>
43 #include <system_error>
44 #include <bits/stl_algobase.h>
45 #include <bits/quoted_string.h>
46 #include <bits/locale_conv.h>
47 #if __cplusplus == 201402L
48 # include <experimental/string_view>
49 #endif
50 
51 #if defined(_WIN32) && !defined(__CYGWIN__)
52 # define _GLIBCXX_FILESYSTEM_IS_WINDOWS 1
53 # include <algorithm>
54 #endif
55 
56 namespace std _GLIBCXX_VISIBILITY(default)
57 {
58 _GLIBCXX_BEGIN_NAMESPACE_VERSION
59 
60 namespace experimental
61 {
62 namespace filesystem
63 {
64 inline namespace v1
65 {
66 _GLIBCXX_BEGIN_NAMESPACE_CXX11
67 
68 #if __cplusplus == 201402L
70 #elif __cplusplus > 201402L
72 #endif
73 
74  /// @cond undocumented
75 namespace __detail
76 {
77  /** @addtogroup filesystem-ts
78  * @{
79  */
80 
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>,
88 #endif
89  is_same<_Ch, char16_t>,
90  is_same<_Ch, char32_t>>;
91 
92  template<typename _Iter,
93  typename _Iter_traits = std::iterator_traits<_Iter>>
94  using __is_path_iter_src
95  = __and_<__is_encoded_char<typename _Iter_traits::value_type>,
97  typename _Iter_traits::iterator_category>>;
98 
99  template<typename _Iter>
100  static __is_path_iter_src<_Iter>
101  __is_path_src(_Iter, int);
102 
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);
106 
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);
111 #endif
112 
113  template<typename _Unknown>
114  static std::false_type
115  __is_path_src(const _Unknown&, ...);
116 
117  template<typename _Tp1, typename _Tp2>
118  struct __constructible_from;
119 
120  template<typename _Iter>
121  struct __constructible_from<_Iter, _Iter>
122  : __is_path_iter_src<_Iter>
123  { };
124 
125  template<typename _Source>
126  struct __constructible_from<_Source, void>
127  : decltype(__is_path_src(std::declval<const _Source&>(), 0))
128  { };
129 
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,
137  path>::type;
138 
139  template<typename _Source>
140  inline _Source
141  _S_range_begin(_Source __begin) { return __begin; }
142 
143  struct __nul_terminated { };
144 
145  template<typename _Source>
146  inline __nul_terminated
147  _S_range_end(_Source) { return {}; }
148 
149  template<typename _CharT, typename _Traits, typename _Alloc>
150  inline const _CharT*
151  _S_range_begin(const basic_string<_CharT, _Traits, _Alloc>& __str)
152  { return __str.data(); }
153 
154  template<typename _CharT, typename _Traits, typename _Alloc>
155  inline const _CharT*
156  _S_range_end(const basic_string<_CharT, _Traits, _Alloc>& __str)
157  { return __str.data() + __str.size(); }
158 
159 #if __cplusplus >= 201402L
160  template<typename _CharT, typename _Traits>
161  inline const _CharT*
162  _S_range_begin(const basic_string_view<_CharT, _Traits>& __str)
163  { return __str.data(); }
164 
165  template<typename _CharT, typename _Traits>
166  inline const _CharT*
167  _S_range_end(const basic_string_view<_CharT, _Traits>& __str)
168  { return __str.data() + __str.size(); }
169 #endif
170 
171  template<typename _Tp,
172  typename _Iter = decltype(_S_range_begin(std::declval<_Tp>())),
173  typename _Val = typename std::iterator_traits<_Iter>::value_type,
174  typename _UnqualVal = typename std::remove_const<_Val>::type>
175  using __value_type_is_char = typename std::enable_if<
177  _UnqualVal>::type;
178 
179  template<typename _Tp,
180  typename _Iter = decltype(_S_range_begin(std::declval<_Tp>())),
181  typename _Val = typename std::iterator_traits<_Iter>::value_type,
182  typename _UnqualVal = typename std::remove_const<_Val>::type>
183  using __value_type_is_char_or_char8_t = typename std::enable_if<
184  __or_<
186 #ifdef _GLIBCXX_USE_CHAR8_T
188 #endif
189  >::value, _UnqualVal>::type;
190 
191  /// @} group filesystem-ts
192 } // namespace __detail
193  /// @endcond
194 
195  /** @addtogroup filesystem-ts
196  * @{
197  */
198 
199  /// A filesystem path.
200  /// @ingroup filesystem-ts
201  class path
202  {
203  public:
204 #ifdef _GLIBCXX_FILESYSTEM_IS_WINDOWS
205  typedef wchar_t value_type;
206  static constexpr value_type preferred_separator = L'\\';
207 #else
208  typedef char value_type;
209  static constexpr value_type preferred_separator = '/';
210 #endif
211  typedef std::basic_string<value_type> string_type;
212 
213  // constructors and destructor
214 
215  path() noexcept;
216  path(const path& __p);
217  path(path&& __p) noexcept;
218 
219  path(string_type&& __source);
220 
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(); }
227 
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(); }
233 
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(); }
241 
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(); }
248 
249  ~path();
250 
251  // assignments
252 
253  path& operator=(const path& __p);
254  path& operator=(path&& __p) noexcept;
255  path& operator=(string_type&& __source);
256  path& assign(string_type&& __source);
257 
258  template<typename _Source>
259  __detail::_Path<_Source>&
260  operator=(_Source const& __source)
261  { return *this = path(__source); }
262 
263  template<typename _Source>
264  __detail::_Path<_Source>&
265  assign(_Source const& __source)
266  { return *this = path(__source); }
267 
268  template<typename _InputIterator>
269  __detail::_Path<_InputIterator, _InputIterator>&
270  assign(_InputIterator __first, _InputIterator __last)
271  { return *this = path(__first, __last); }
272 
273  // appends
274 
275  path& operator/=(const path& __p) { return _M_append(__p._M_pathname); }
276 
277  template<typename _Source>
278  __detail::_Path<_Source>&
279  operator/=(_Source const& __source)
280  { return append(__source); }
281 
282  template<typename _Source>
283  __detail::_Path<_Source>&
284  append(_Source const& __source)
285  {
286  return _M_append(_S_convert(__detail::_S_range_begin(__source),
287  __detail::_S_range_end(__source)));
288  }
289 
290  template<typename _InputIterator>
291  __detail::_Path<_InputIterator, _InputIterator>&
292  append(_InputIterator __first, _InputIterator __last)
293  { return _M_append(_S_convert(__first, __last)); }
294 
295  // concatenation
296 
297  path& operator+=(const path& __x);
298  path& operator+=(const string_type& __x);
299  path& operator+=(const value_type* __x);
300  path& operator+=(value_type __x);
301 #if __cplusplus >= 201402L
302  path& operator+=(basic_string_view<value_type> __x);
303 #endif
304 
305  template<typename _Source>
306  __detail::_Path<_Source>&
307  operator+=(_Source const& __x) { return concat(__x); }
308 
309  template<typename _CharT>
310  __detail::_Path<_CharT*, _CharT*>&
311  operator+=(_CharT __x);
312 
313  template<typename _Source>
314  __detail::_Path<_Source>&
315  concat(_Source const& __x)
316  {
317  return *this += _S_convert(__detail::_S_range_begin(__x),
318  __detail::_S_range_end(__x));
319  }
320 
321  template<typename _InputIterator>
322  __detail::_Path<_InputIterator, _InputIterator>&
323  concat(_InputIterator __first, _InputIterator __last)
324  { return *this += _S_convert(__first, __last); }
325 
326  // modifiers
327 
328  void clear() noexcept { _M_pathname.clear(); _M_split_cmpts(); }
329 
330  path& make_preferred();
331  path& remove_filename();
332  path& replace_filename(const path& __replacement);
333  path& replace_extension(const path& __replacement = path());
334 
335  void swap(path& __rhs) noexcept;
336 
337  // native format observers
338 
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; }
342 
343  template<typename _CharT, typename _Traits = std::char_traits<_CharT>,
344  typename _Allocator = std::allocator<_CharT>>
346  string(const _Allocator& __a = _Allocator()) const;
347 
348  std::string string() const;
349 #if _GLIBCXX_USE_WCHAR_T
350  std::wstring wstring() const;
351 #endif
352 #ifdef _GLIBCXX_USE_CHAR8_T
353  __attribute__((__abi_tag__("__u8")))
354  std::u8string u8string() const;
355 #else
356  std::string u8string() const;
357 #endif // _GLIBCXX_USE_CHAR8_T
358  std::u16string u16string() const;
359  std::u32string u32string() const;
360 
361  // generic format observers
362  template<typename _CharT, typename _Traits = std::char_traits<_CharT>,
363  typename _Allocator = std::allocator<_CharT>>
365  generic_string(const _Allocator& __a = _Allocator()) const;
366 
367  std::string generic_string() const;
368 #if _GLIBCXX_USE_WCHAR_T
369  std::wstring generic_wstring() const;
370 #endif
371 #ifdef _GLIBCXX_USE_CHAR8_T
372  __attribute__((__abi_tag__("__u8")))
373  std::u8string generic_u8string() const;
374 #else
375  std::string generic_u8string() const;
376 #endif // _GLIBCXX_USE_CHAR8_T
377  std::u16string generic_u16string() const;
378  std::u32string generic_u32string() const;
379 
380  // compare
381 
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
386  int compare(const basic_string_view<value_type> __s) const;
387 #endif
388 
389  // decomposition
390 
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;
397  path stem() const;
398  path extension() const;
399 
400  // query
401 
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(); }
413 
414  // iterators
415  class iterator;
416  typedef iterator const_iterator;
417 
418  iterator begin() const noexcept;
419  iterator end() const noexcept;
420 
421  /// @cond undocumented
422  // Create a basic_string by reading until a null character.
423  template<typename _InputIterator,
424  typename _Traits = std::iterator_traits<_InputIterator>,
425  typename _CharT
426  = typename std::remove_cv<typename _Traits::value_type>::type>
428  _S_string_from_iter(_InputIterator __source)
429  {
431  for (_CharT __ch = *__source; __ch != _CharT(); __ch = *++__source)
432  __str.push_back(__ch);
433  return __str;
434  }
435  /// @endcond
436 
437  private:
438  enum class _Type : unsigned char {
439  _Multi, _Root_name, _Root_dir, _Filename
440  };
441 
442  path(string_type __str, _Type __type);
443 
444  enum class _Split { _Stem, _Extension };
445 
446  path& _M_append(const string_type& __str)
447  {
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;
452  _M_split_cmpts();
453  return *this;
454  }
455 
456  pair<const string_type*, size_t> _M_find_extension() const;
457 
458  template<typename _CharT>
459  struct _Cvt;
460 
461  static string_type
462  _S_convert(value_type* __src, __detail::__nul_terminated)
463  { return string_type(__src); }
464 
465  static string_type
466  _S_convert(const value_type* __src, __detail::__nul_terminated)
467  { return string_type(__src); }
468 
469  template<typename _Iter>
470  static string_type
471  _S_convert(_Iter __first, _Iter __last)
472  {
473  using __value_type = typename std::iterator_traits<_Iter>::value_type;
474  return _Cvt<typename remove_cv<__value_type>::type>::
475  _S_convert(__first, __last);
476  }
477 
478  template<typename _InputIterator>
479  static string_type
480  _S_convert(_InputIterator __src, __detail::__nul_terminated)
481  {
482  auto __s = _S_string_from_iter(__src);
483  return _S_convert(__s.c_str(), __s.c_str() + __s.size());
484  }
485 
486  static string_type
487  _S_convert_loc(const char* __first, const char* __last,
488  const std::locale& __loc);
489 
490  static string_type
491  _S_convert_loc(char* __first, char* __last, const std::locale& __loc)
492  {
493  return _S_convert_loc(const_cast<const char*>(__first),
494  const_cast<const char*>(__last), __loc);
495  }
496 
497  template<typename _Iter>
498  static string_type
499  _S_convert_loc(_Iter __first, _Iter __last, const std::locale& __loc)
500  {
501  const std::string __str(__first, __last);
502  return _S_convert_loc(__str.data(), __str.data()+__str.size(), __loc);
503  }
504 
505  template<typename _InputIterator>
506  static string_type
507  _S_convert_loc(_InputIterator __src, __detail::__nul_terminated,
508  const std::locale& __loc)
509  {
510  const std::string __s = _S_string_from_iter(__src);
511  return _S_convert_loc(__s.data(), __s.data() + __s.size(), __loc);
512  }
513 
514  static bool _S_is_dir_sep(value_type __ch)
515  {
516 #ifdef _GLIBCXX_FILESYSTEM_IS_WINDOWS
517  return __ch == L'/' || __ch == preferred_separator;
518 #else
519  return __ch == '/';
520 #endif
521  }
522 
523  void _M_split_cmpts();
524  void _M_trim();
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);
528 
529  string_type _M_pathname;
530 
531  struct _Cmpt;
532  using _List = _GLIBCXX_STD_C::vector<_Cmpt>;
533  _List _M_cmpts; // empty unless _M_type == _Type::_Multi
534  _Type _M_type = _Type::_Multi;
535  };
536 
537  /// @relates std::experimental::filesystem::path @{
538 
539  /// Swap overload for paths
540  inline void swap(path& __lhs, path& __rhs) noexcept { __lhs.swap(__rhs); }
541 
542  /// Compute a hash value for a path
543  size_t hash_value(const path& __p) noexcept;
544 
545  /// Compare paths
546  inline bool operator<(const path& __lhs, const path& __rhs) noexcept;
547 
548  /// Compare paths
549  inline bool operator<=(const path& __lhs, const path& __rhs) noexcept
550  { return !(__rhs < __lhs); }
551 
552  /// Compare paths
553  inline bool operator>(const path& __lhs, const path& __rhs) noexcept
554  { return __rhs < __lhs; }
555 
556  /// Compare paths
557  inline bool operator>=(const path& __lhs, const path& __rhs) noexcept
558  { return !(__lhs < __rhs); }
559 
560  /// Compare paths
561  inline bool operator==(const path& __lhs, const path& __rhs) noexcept;
562 
563  /// Compare paths
564  inline bool operator!=(const path& __lhs, const path& __rhs) noexcept
565  { return !(__lhs == __rhs); }
566 
567  /// Append one path to another
568  inline path operator/(const path& __lhs, const path& __rhs)
569  {
570  path __result(__lhs);
571  __result /= __rhs;
572  return __result;
573  }
574 
575  /// Write a path to a stream
576  template<typename _CharT, typename _Traits>
577  basic_ostream<_CharT, _Traits>&
578  operator<<(basic_ostream<_CharT, _Traits>& __os, const path& __p)
579  {
580  auto __tmp = __p.string<_CharT, _Traits>();
581  using __quoted_string
582  = std::__detail::_Quoted_string<decltype(__tmp)&, _CharT>;
583  __os << __quoted_string{__tmp, _CharT('"'), _CharT('\\')};
584  return __os;
585  }
586 
587  /// Read a path from a stream
588  template<typename _CharT, typename _Traits>
589  basic_istream<_CharT, _Traits>&
590  operator>>(basic_istream<_CharT, _Traits>& __is, path& __p)
591  {
592  basic_string<_CharT, _Traits> __tmp;
593  using __quoted_string
594  = std::__detail::_Quoted_string<decltype(__tmp)&, _CharT>;
595  if (__is >> __quoted_string{ __tmp, _CharT('"'), _CharT('\\') })
596  __p = std::move(__tmp);
597  return __is;
598  }
599 
600  /// Create a path from a UTF-8-encoded sequence of char
601 #ifdef _GLIBCXX_FILESYSTEM_IS_WINDOWS
602  template<typename _InputIterator>
603  inline path
604  __u8path(_InputIterator __first, _InputIterator __last, char)
605  {
606  // XXX This assumes native wide encoding is UTF-16.
607  std::codecvt_utf8_utf16<path::value_type> __cvt;
608  path::string_type __tmp;
609  const std::string __u8str{__first, __last};
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",
615  std::make_error_code(errc::illegal_byte_sequence)));
616  }
617 
618 #ifdef _GLIBCXX_USE_CHAR8_T
619  template<typename _InputIterator>
620  inline path
621  __u8path(_InputIterator __first, _InputIterator __last, char8_t)
622  {
623  return path{ __first, __last };
624  }
625 #endif // _GLIBCXX_USE_CHAR8_T
626 #endif // _GLIBCXX_FILESYSTEM_IS_WINDOWS
627 
628  template<typename _InputIterator,
629  typename _Require = __detail::_Path<_InputIterator, _InputIterator>,
630  typename _CharT =
631  __detail::__value_type_is_char_or_char8_t<_InputIterator>>
632  inline path
633  u8path(_InputIterator __first, _InputIterator __last)
634  {
635 #ifdef _GLIBCXX_FILESYSTEM_IS_WINDOWS
636  return __u8path(__first, __last, _CharT{});
637 #else
638  return path{ __first, __last };
639 #endif
640  }
641 
642  /// Create a path from a UTF-8-encoded sequence of char
643 #ifdef _GLIBCXX_FILESYSTEM_IS_WINDOWS
644  inline path
645  __u8path(const string& __s, char)
646  {
647  return filesystem::u8path(__s.data(), __s.data() + __s.size());
648  }
649 
650  template<typename _Source>
651  inline __enable_if_t<is_convertible<const _Source&, string>::value, path>
652  __u8path(const _Source& __source, char)
653  {
654  std::string __s = __source;
655  return filesystem::u8path(__s.data(), __s.data() + __s.size());
656  }
657 
658  template<typename _Source>
659  inline __enable_if_t<!is_convertible<const _Source&, string>::value, path>
660  __u8path(const _Source& __source, char)
661  {
662  std::string __s = path::_S_string_from_iter(__source);
663  return filesystem::u8path(__s.data(), __s.data() + __s.size());
664  }
665 
666 #ifdef _GLIBCXX_USE_CHAR8_T
667  template<typename _Source>
668  inline path
669  __u8path(const _Source& __source, char8_t)
670  {
671  return path{ __source };
672  }
673 #endif // _GLIBCXX_USE_CHAR8_T
674 #endif // _GLIBCXX_FILESYSTEM_IS_WINDOWS
675 
676  template<typename _Source,
677  typename _Require = __detail::_Path<_Source>,
678  typename _CharT =
679  __detail::__value_type_is_char_or_char8_t<_Source>>
680  inline path
681  u8path(const _Source& __source)
682  {
683 #ifdef _GLIBCXX_FILESYSTEM_IS_WINDOWS
684  return __u8path(__source, _CharT{});
685 #else
686  return path{ __source };
687 #endif
688  }
689 
690  /// @}
691 
692  /// Exception type thrown by the Filesystem TS library
694  {
695  public:
696  filesystem_error(const string& __what_arg, error_code __ec)
697  : system_error(__ec, __what_arg) { }
698 
699  filesystem_error(const string& __what_arg, const path& __p1,
700  error_code __ec)
701  : system_error(__ec, __what_arg), _M_path1(__p1) { }
702 
703  filesystem_error(const string& __what_arg, const path& __p1,
704  const path& __p2, error_code __ec)
705  : system_error(__ec, __what_arg), _M_path1(__p1), _M_path2(__p2)
706  { }
707 
708  ~filesystem_error();
709 
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(); }
713 
714  private:
715  std::string _M_gen_what();
716 
717  path _M_path1;
718  path _M_path2;
719  std::string _M_what = _M_gen_what();
720  };
721 
722  /// @cond undocumented
723  struct path::_Cmpt : path
724  {
725  _Cmpt(string_type __s, _Type __t, size_t __pos)
726  : path(std::move(__s), __t), _M_pos(__pos) { }
727 
728  _Cmpt() : _M_pos(-1) { }
729 
730  size_t _M_pos;
731  };
732 
733  // specialize _Cvt for degenerate 'noconv' case
734  template<>
735  struct path::_Cvt<path::value_type>
736  {
737  // We need this type to be defined because we don't have `if constexpr`
738  // in C++11 and so path::string<C,T,A>(const A&) needs to be able to
739  // declare a variable of this type and pass it to __str_codecvt_in_all.
740  using __codecvt_utf8_to_wide = _Cvt;
741  // Dummy overload used for unreachable calls in path::string<C,T,A>.
742  template<typename _WStr>
743  friend bool
744  __str_codecvt_in_all(const char*, const char*,
745  _WStr&, __codecvt_utf8_to_wide&) noexcept
746  { return true; }
747 
748  template<typename _Iter>
749  static string_type
750  _S_convert(_Iter __first, _Iter __last)
751  { return string_type{__first, __last}; }
752  };
753 
754  // Performs conversions from _CharT to path::string_type.
755  template<typename _CharT>
756  struct path::_Cvt
757  {
758  // FIXME: We currently assume that the native wide encoding for wchar_t
759  // is either UTF-32 or UTF-16 (depending on the width of wchar_t).
760  // See comments in <bits/fs_path.h> for further details.
761  using __codecvt_utf8_to_wchar
762  = __conditional_t<sizeof(wchar_t) == sizeof(char32_t),
763  std::codecvt_utf8<wchar_t>, // from UTF-32
764  std::codecvt_utf8_utf16<wchar_t>>; // from UTF-16
765 
766  // Converts from char16_t or char32_t using std::codecvt<charNN_t, char>.
767  // Need derived class here because std::codecvt has protected destructor.
768  struct __codecvt_utf8_to_utfNN : std::codecvt<_CharT, char, mbstate_t>
769  { };
770 
771  // Convert from native pathname format (assumed to be UTF-8 everywhere)
772  // to the encoding implied by the wide character type _CharT.
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>;
777 
778 #ifdef _GLIBCXX_FILESYSTEM_IS_WINDOWS
779 #ifdef _GLIBCXX_USE_CHAR8_T
780  static string_type
781  _S_wconvert(const char8_t* __f, const char8_t* __l, const char8_t*)
782  {
783  const char* __f2 = (const char*)__f;
784  const char* __l2 = (const char*)__l;
785  std::wstring __wstr;
786  std::codecvt_utf8_utf16<wchar_t> __wcvt;
787  if (__str_codecvt_in_all(__f2, __l2, __wstr, __wcvt))
788  return __wstr;
789  }
790 #endif
791 
792  static string_type
793  _S_wconvert(const char* __f, const char* __l, const char*)
794  {
795  std::codecvt_utf8_utf16<wchar_t> __cvt;
796  std::wstring __wstr;
797  if (__str_codecvt_in_all(__f, __l, __wstr, __cvt))
798  return __wstr;
799  _GLIBCXX_THROW_OR_ABORT(filesystem_error(
800  "Cannot convert character sequence",
801  std::make_error_code(errc::illegal_byte_sequence)));
802  }
803 
804  static string_type
805  _S_wconvert(const _CharT* __f, const _CharT* __l, const void*)
806  {
807  __codecvt_utf8_to_wide __cvt;
808  std::string __str;
809  if (__str_codecvt_out_all(__f, __l, __str, __cvt))
810  {
811  const char* __f2 = __str.data();
812  const char* __l2 = __f2 + __str.size();
813  std::codecvt_utf8_utf16<wchar_t> __wcvt;
814  std::wstring __wstr;
815  if (__str_codecvt_in_all(__f2, __l2, __wstr, __wcvt))
816  return __wstr;
817  }
818  _GLIBCXX_THROW_OR_ABORT(filesystem_error(
819  "Cannot convert character sequence",
820  std::make_error_code(errc::illegal_byte_sequence)));
821  }
822 
823  static string_type
824  _S_convert(const _CharT* __f, const _CharT* __l)
825  {
826  return _S_wconvert(__f, __l, (const _CharT*)nullptr);
827  }
828 #else
829  static string_type
830  _S_convert(const _CharT* __f, const _CharT* __l)
831  {
832 #ifdef _GLIBCXX_USE_CHAR8_T
833  if constexpr (is_same<_CharT, char8_t>::value)
834  return string_type(__f, __l);
835  else
836 #endif
837  {
838  __codecvt_utf8_to_wide __cvt;
839  std::string __str;
840  if (__str_codecvt_out_all(__f, __l, __str, __cvt))
841  return __str;
842  _GLIBCXX_THROW_OR_ABORT(filesystem_error(
843  "Cannot convert character sequence",
844  std::make_error_code(errc::illegal_byte_sequence)));
845  }
846  }
847 #endif
848 
849  static string_type
850  _S_convert(_CharT* __f, _CharT* __l)
851  {
852  return _S_convert(const_cast<const _CharT*>(__f),
853  const_cast<const _CharT*>(__l));
854  }
855 
856  template<typename _Iter>
857  static string_type
858  _S_convert(_Iter __first, _Iter __last)
859  {
860  const std::basic_string<_CharT> __str(__first, __last);
861  return _S_convert(__str.data(), __str.data() + __str.size());
862  }
863 
864  template<typename _Iter, typename _Cont>
865  static string_type
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()); }
869  };
870  /// @endcond
871 
872  /// An iterator for the components of a path
874  {
875  public:
876  using difference_type = std::ptrdiff_t;
877  using value_type = path;
878  using reference = const path&;
879  using pointer = const path*;
881 
882  iterator() noexcept : _M_path(nullptr), _M_cur(), _M_at_end() { }
883 
884  iterator(const iterator&) = default;
885  iterator& operator=(const iterator&) = default;
886 
887  reference operator*() const noexcept;
888  pointer operator->() const noexcept { return std::__addressof(**this); }
889 
890  iterator& operator++() noexcept;
891 
892  iterator operator++(int) noexcept
893  { auto __tmp = *this; ++*this; return __tmp; }
894 
895  iterator& operator--() noexcept;
896 
897  iterator operator--(int) noexcept
898  { auto __tmp = *this; --*this; return __tmp; }
899 
900  friend bool
901  operator==(const iterator& __lhs, const iterator& __rhs) noexcept
902  { return __lhs._M_equals(__rhs); }
903 
904  friend bool
905  operator!=(const iterator& __lhs, const iterator& __rhs) noexcept
906  { return !__lhs._M_equals(__rhs); }
907 
908  private:
909  friend class path;
910 
911  iterator(const path* __path, path::_List::const_iterator __iter) noexcept
912  : _M_path(__path), _M_cur(__iter), _M_at_end()
913  { }
914 
915  iterator(const path* __path, bool __at_end) noexcept
916  : _M_path(__path), _M_cur(), _M_at_end(__at_end)
917  { }
918 
919  bool _M_equals(iterator) const noexcept;
920 
921  const path* _M_path;
922  path::_List::const_iterator _M_cur;
923  bool _M_at_end; // only used when type != _Multi
924  };
925 
926  inline
927  path::path() noexcept = default;
928 
929  inline
930  path::path(const path&) = default;
931 
932  inline
933  path::path(path&& __p) noexcept
934  : _M_pathname(std::move(__p._M_pathname)),
935  _M_cmpts(__p._M_cmpts),
936  _M_type(__p._M_type)
937  { __p.clear(); }
938 
939  inline
940  path::path(string_type&& __source)
941  : _M_pathname(std::move(__source))
942  { _M_split_cmpts(); }
943 
944  inline
945  path::path(string_type __str, _Type __type)
946  : _M_pathname(__str), _M_type(__type)
947  {
948  __glibcxx_assert(!empty());
949  __glibcxx_assert(_M_type != _Type::_Multi);
950  }
951 
952  inline
953  path::~path() = default;
954 
955  inline path&
956  path::operator=(const path& __p) = default;
957 
958  inline path&
959  path::operator=(path&& __p) noexcept
960  {
961  _M_pathname = std::move(__p._M_pathname);
962  _M_cmpts = std::move(__p._M_cmpts);
963  _M_type = __p._M_type;
964  __p.clear();
965  return *this;
966  }
967 
968  inline path&
969  path::operator=(string_type&& __source)
970  { return *this = path(std::move(__source)); }
971 
972  inline path&
973  path::assign(string_type&& __source)
974  { return *this = path(std::move(__source)); }
975 
976  inline path&
977  path::operator+=(const path& __p)
978  {
979  return operator+=(__p.native());
980  }
981 
982  inline path&
983  path::operator+=(const string_type& __x)
984  {
985  _M_pathname += __x;
986  _M_split_cmpts();
987  return *this;
988  }
989 
990  inline path&
991  path::operator+=(const value_type* __x)
992  {
993  _M_pathname += __x;
994  _M_split_cmpts();
995  return *this;
996  }
997 
998  inline path&
999  path::operator+=(value_type __x)
1000  {
1001  _M_pathname += __x;
1002  _M_split_cmpts();
1003  return *this;
1004  }
1005 
1006 #if __cplusplus >= 201402L
1007  inline path&
1008  path::operator+=(basic_string_view<value_type> __x)
1009  {
1010  _M_pathname.append(__x.data(), __x.size());
1011  _M_split_cmpts();
1012  return *this;
1013  }
1014 #endif
1015 
1016  template<typename _CharT>
1017  inline __detail::_Path<_CharT*, _CharT*>&
1018  path::operator+=(_CharT __x)
1019  {
1020  auto* __addr = std::__addressof(__x);
1021  return concat(__addr, __addr + 1);
1022  }
1023 
1024  inline path&
1025  path::make_preferred()
1026  {
1027 #ifdef _GLIBCXX_FILESYSTEM_IS_WINDOWS
1028  std::replace(_M_pathname.begin(), _M_pathname.end(), L'/',
1029  preferred_separator);
1030 #endif
1031  return *this;
1032  }
1033 
1034  inline void path::swap(path& __rhs) noexcept
1035  {
1036  _M_pathname.swap(__rhs._M_pathname);
1037  _M_cmpts.swap(__rhs._M_cmpts);
1038  std::swap(_M_type, __rhs._M_type);
1039  }
1040 
1041  template<typename _CharT, typename _Traits, typename _Allocator>
1043  path::string(const _Allocator& __a) const
1044  {
1045  if _GLIBCXX_CONSTEXPR (is_same<_CharT, value_type>::value)
1046  return { _M_pathname.begin(), _M_pathname.end(), __a };
1047 
1048  using _WString = basic_string<_CharT, _Traits, _Allocator>;
1049 
1050  const value_type* __first = _M_pathname.data();
1051  const value_type* __last = __first + _M_pathname.size();
1052 
1053 #ifdef _GLIBCXX_FILESYSTEM_IS_WINDOWS
1054  using _CharAlloc = __alloc_rebind<_Allocator, char>;
1055  using _String = basic_string<char, char_traits<char>, _CharAlloc>;
1056 
1057  // First convert native string from UTF-16 to to UTF-8.
1058  // XXX This assumes that the execution wide-character set is UTF-16.
1059  codecvt_utf8_utf16<value_type> __cvt;
1060  _String __u8str{_CharAlloc{__a}};
1061  if (__str_codecvt_out_all(__first, __last, __u8str, __cvt))
1062  {
1063  struct
1064  {
1065  const _String*
1066  operator()(const _String& __from, _String&, true_type)
1067  { return std::__addressof(__from); }
1068 
1069  _WString*
1070  operator()(const _String& __from, _WString& __to, false_type)
1071  {
1072 #ifdef _GLIBCXX_USE_CHAR8_T
1073  if constexpr (is_same<_CharT, char8_t>::value)
1074  {
1075  __to.assign(__from.begin(), __from.end());
1076  return std::__addressof(__to);
1077  }
1078  else
1079 #endif
1080  {
1081  // Convert UTF-8 to char16_t or char32_t string.
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))
1086  return std::__addressof(__to);
1087  }
1088  return nullptr;
1089  }
1090  } __dispatch;
1091  _WString __wstr(__a);
1092  if (auto* __p = __dispatch(__u8str, __wstr, is_same<_CharT, char>{}))
1093  return *__p;
1094  }
1095 #else // ! Windows
1096 #ifdef _GLIBCXX_USE_CHAR8_T
1097  if constexpr (is_same<_CharT, char8_t>::value)
1098  return _WString(__first, __last, __a);
1099  else
1100 #endif
1101  {
1102  typename path::_Cvt<_CharT>::__codecvt_utf8_to_wide __cvt;
1103  _WString __wstr(__a);
1104  if (__str_codecvt_in_all(__first, __last, __wstr, __cvt))
1105  return __wstr;
1106  }
1107 #endif
1108  _GLIBCXX_THROW_OR_ABORT(filesystem_error(
1109  "Cannot convert character sequence",
1110  std::make_error_code(errc::illegal_byte_sequence)));
1111  }
1112 
1113  inline std::string
1114  path::string() const { return string<char>(); }
1115 
1116 #if _GLIBCXX_USE_WCHAR_T
1117  inline std::wstring
1118  path::wstring() const { return string<wchar_t>(); }
1119 #endif
1120 
1121 #ifdef _GLIBCXX_USE_CHAR8_T
1122  inline std::u8string
1123  path::u8string() const { return string<char8_t>(); }
1124 #else
1125  inline std::string
1126  path::u8string() const
1127  {
1128 #ifdef _GLIBCXX_FILESYSTEM_IS_WINDOWS
1129  std::string __str;
1130  // convert from native wide encoding (assumed to be UTF-16) to UTF-8
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))
1135  return __str;
1136  _GLIBCXX_THROW_OR_ABORT(filesystem_error(
1137  "Cannot convert character sequence",
1138  std::make_error_code(errc::illegal_byte_sequence)));
1139 #else
1140  return _M_pathname;
1141 #endif
1142  }
1143 #endif // _GLIBCXX_USE_CHAR8_T
1144 
1145  inline std::u16string
1146  path::u16string() const { return string<char16_t>(); }
1147 
1148  inline std::u32string
1149  path::u32string() const { return string<char32_t>(); }
1150 
1151  template<typename _CharT, typename _Traits, typename _Allocator>
1153  path::generic_string(const _Allocator& __a) const
1154  {
1155 #ifdef _GLIBCXX_FILESYSTEM_IS_WINDOWS
1156  const _CharT __slash = is_same<_CharT, wchar_t>::value
1157  ? _CharT(L'/')
1158  : _CharT('/'); // Assume value is correct for the encoding.
1159 #else
1160  const _CharT __slash = _CharT('/');
1161 #endif
1162  basic_string<_CharT, _Traits, _Allocator> __str(__a);
1163  __str.reserve(_M_pathname.size());
1164  bool __add_slash = false;
1165  for (auto& __elem : *this)
1166  {
1167  if (__elem._M_type == _Type::_Root_dir)
1168  {
1169  __str += __slash;
1170  continue;
1171  }
1172  if (__add_slash)
1173  __str += __slash;
1174  __str += __elem.string<_CharT, _Traits, _Allocator>(__a);
1175  __add_slash = __elem._M_type == _Type::_Filename;
1176  }
1177  return __str;
1178  }
1179 
1180  inline std::string
1181  path::generic_string() const { return generic_string<char>(); }
1182 
1183 #if _GLIBCXX_USE_WCHAR_T
1184  inline std::wstring
1185  path::generic_wstring() const { return generic_string<wchar_t>(); }
1186 #endif
1187 
1188 #ifdef _GLIBCXX_USE_CHAR8_T
1189  inline std::u8string
1190  path::generic_u8string() const { return generic_string<char8_t>(); }
1191 #else
1192  inline std::string
1193  path::generic_u8string() const { return generic_string<char>(); }
1194 #endif
1195 
1196  inline std::u16string
1197  path::generic_u16string() const { return generic_string<char16_t>(); }
1198 
1199  inline std::u32string
1200  path::generic_u32string() const { return generic_string<char32_t>(); }
1201 
1202  inline int
1203  path::compare(const string_type& __s) const { return compare(path(__s)); }
1204 
1205  inline int
1206  path::compare(const value_type* __s) const { return compare(path(__s)); }
1207 
1208 #if __cplusplus >= 201402L
1209  inline int
1210  path::compare(basic_string_view<value_type> __s) const
1211  { return compare(path(__s)); }
1212 #endif
1213 
1214  inline path
1215  path::filename() const { return empty() ? path() : *--end(); }
1216 
1217  inline path
1218  path::stem() const
1219  {
1220  auto ext = _M_find_extension();
1221  if (ext.first && ext.second != 0)
1222  return path{ext.first->substr(0, ext.second)};
1223  return {};
1224  }
1225 
1226  inline path
1227  path::extension() const
1228  {
1229  auto ext = _M_find_extension();
1230  if (ext.first && ext.second != string_type::npos)
1231  return path{ext.first->substr(ext.second)};
1232  return {};
1233  }
1234 
1235  inline bool
1236  path::has_stem() const
1237  {
1238  auto ext = _M_find_extension();
1239  return ext.first && ext.second != 0;
1240  }
1241 
1242  inline bool
1243  path::has_extension() const
1244  {
1245  auto ext = _M_find_extension();
1246  return ext.first && ext.second != string_type::npos;
1247  }
1248 
1249  inline bool
1250  path::is_absolute() const
1251  {
1252 #ifdef _GLIBCXX_FILESYSTEM_IS_WINDOWS
1253  return has_root_name() && has_root_directory();
1254 #else
1255  return has_root_directory();
1256 #endif
1257  }
1258 
1259  inline path::iterator
1260  path::begin() const noexcept
1261  {
1262  if (_M_type == _Type::_Multi)
1263  return iterator(this, _M_cmpts.begin());
1264  return iterator(this, false);
1265  }
1266 
1267  inline path::iterator
1268  path::end() const noexcept
1269  {
1270  if (_M_type == _Type::_Multi)
1271  return iterator(this, _M_cmpts.end());
1272  return iterator(this, true);
1273  }
1274 
1275  inline path::iterator&
1276  path::iterator::operator++() noexcept
1277  {
1278  __glibcxx_assert(_M_path != nullptr);
1279  if (_M_path->_M_type == _Type::_Multi)
1280  {
1281  __glibcxx_assert(_M_cur != _M_path->_M_cmpts.end());
1282  ++_M_cur;
1283  }
1284  else
1285  {
1286  __glibcxx_assert(!_M_at_end);
1287  _M_at_end = true;
1288  }
1289  return *this;
1290  }
1291 
1292  inline path::iterator&
1293  path::iterator::operator--() noexcept
1294  {
1295  __glibcxx_assert(_M_path != nullptr);
1296  if (_M_path->_M_type == _Type::_Multi)
1297  {
1298  __glibcxx_assert(_M_cur != _M_path->_M_cmpts.begin());
1299  --_M_cur;
1300  }
1301  else
1302  {
1303  __glibcxx_assert(_M_at_end);
1304  _M_at_end = false;
1305  }
1306  return *this;
1307  }
1308 
1309  inline path::iterator::reference
1310  path::iterator::operator*() const noexcept
1311  {
1312  __glibcxx_assert(_M_path != nullptr);
1313  if (_M_path->_M_type == _Type::_Multi)
1314  {
1315  __glibcxx_assert(_M_cur != _M_path->_M_cmpts.end());
1316  return *_M_cur;
1317  }
1318  return *_M_path;
1319  }
1320 
1321  inline bool
1322  path::iterator::_M_equals(iterator __rhs) const noexcept
1323  {
1324  if (_M_path != __rhs._M_path)
1325  return false;
1326  if (_M_path == nullptr)
1327  return true;
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;
1331  }
1332 
1333  // Define these now that path and path::iterator are complete.
1334  // They needs to consider the string_view(Range&&) constructor during
1335  // overload resolution, which depends on whether range<path> is satisfied,
1336  // which depends on whether path::iterator is complete.
1337  inline bool operator<(const path& __lhs, const path& __rhs) noexcept
1338  { return __lhs.compare(__rhs) < 0; }
1339 
1340  inline bool operator==(const path& __lhs, const path& __rhs) noexcept
1341  { return __lhs.compare(__rhs) == 0; }
1342 
1343  /// @} group filesystem-ts
1344 _GLIBCXX_END_NAMESPACE_CXX11
1345 } // namespace v1
1346 } // namespace filesystem
1347 } // namespace experimental
1348 
1349 _GLIBCXX_END_NAMESPACE_VERSION
1350 } // namespace std
1351 
1352 #endif // C++11
1353 
1354 #endif // _GLIBCXX_EXPERIMENTAL_FS_PATH_H
constexpr complex< _Tp > operator*(const complex< _Tp > &__x, const complex< _Tp > &__y)
Return new complex value x times y.
Definition: complex:392
constexpr complex< _Tp > operator/(const complex< _Tp > &__x, const complex< _Tp > &__y)
Return new complex value x divided by y.
Definition: complex:422
integral_constant< bool, true > true_type
The type used as a compile-time boolean with true value.
Definition: type_traits:82
integral_constant< bool, false > false_type
The type used as a compile-time boolean with false value.
Definition: type_traits:85
constexpr _Tp * __addressof(_Tp &__r) noexcept
Same as C++11 std::addressof.
Definition: move.h:49
constexpr std::remove_reference< _Tp >::type && move(_Tp &&__t) noexcept
Convert a value to an rvalue.
Definition: move.h:104
void swap(any &__x, any &__y) noexcept
Exchange the states of two any objects.
Definition: any:429
basic_string< char > string
A string of char.
Definition: stringfwd.h:72
basic_string< char32_t > u32string
A string of char32_t.
Definition: stringfwd.h:92
basic_string< char16_t > u16string
A string of char16_t.
Definition: stringfwd.h:89
basic_string< wchar_t > wstring
A string of wchar_t.
Definition: stringfwd.h:80
ISO C++ entities toplevel namespace is std.
std::basic_istream< _CharT, _Traits > & operator>>(std::basic_istream< _CharT, _Traits > &__is, bitset< _Nb > &__x)
Global I/O operators for bitsets.
Definition: bitset:1472
std::basic_ostream< _CharT, _Traits > & operator<<(std::basic_ostream< _CharT, _Traits > &__os, const bitset< _Nb > &__x)
Global I/O operators for bitsets.
Definition: bitset:1540
A non-owning reference to a string.
Definition: string_view:101
An exception type that includes an error_code value.
Definition: system_error:447
integral_constant
Definition: type_traits:63
is_same
Definition: type_traits:1435
is_base_of
Definition: type_traits:1448
Define a member typedef type only if a boolean constant is true.
Definition: type_traits:2229
Primary class template codecvt.
Definition: codecvt.h:279
void push_back(_CharT __c)
Append a single character.
Definition: cow_string.h:1331
const _CharT * c_str() const noexcept
Return const pointer to null-terminated contents.
Definition: cow_string.h:2206
void reserve(size_type __res_arg)
Attempt to preallocate enough memory for specified number of characters.
Definition: cow_string.h:3422
size_type size() const noexcept
Returns the number of characters in the string, not including any null-termination.
Definition: cow_string.h:913
const _CharT * data() const noexcept
Return const pointer to contents.
Definition: cow_string.h:2218
iterator begin()
Definition: cow_string.h:803
void clear() noexcept
Definition: cow_string.h:1004
bool empty() const noexcept
Definition: cow_string.h:1026
reference back()
Definition: cow_string.h:1141
static const size_type npos
Value returned by various member functions when they fail.
Definition: cow_string.h:328
Traits class for iterators.
Container class for localization functionality.
Struct for delimited strings.
Definition: quoted_string.h:50
Struct holding two objects of arbitrary type.
Definition: stl_pair.h:187
Marking input iterators.
Bidirectional iterators support a superset of forward iterator operations.
Common iterator class.
Exception type thrown by the Filesystem TS library.
A non-owning reference to a string.