39#ifndef _BASIC_STRING_TCC
40#define _BASIC_STRING_TCC 1
42#pragma GCC system_header
46namespace std _GLIBCXX_VISIBILITY(default)
48_GLIBCXX_BEGIN_NAMESPACE_VERSION
50#if _GLIBCXX_USE_CXX11_ABI
52 template<
typename _CharT,
typename _Traits,
typename _Alloc>
53 const typename basic_string<_CharT, _Traits, _Alloc>::size_type
56 template<
typename _CharT,
typename _Traits,
typename _Alloc>
60 swap(basic_string& __s) _GLIBCXX_NOEXCEPT
65 _Alloc_traits::_S_on_swap(_M_get_allocator(), __s._M_get_allocator());
68 if (__s._M_is_local())
70 if (length() && __s.length())
72 _CharT __tmp_data[_S_local_capacity + 1];
73 traits_type::copy(__tmp_data, __s._M_local_buf,
75 traits_type::copy(__s._M_local_buf, _M_local_buf,
77 traits_type::copy(_M_local_buf, __tmp_data,
80 else if (__s.length())
82 traits_type::copy(_M_local_buf, __s._M_local_buf,
84 _M_length(__s.length());
90 traits_type::copy(__s._M_local_buf, _M_local_buf,
92 __s._M_length(length());
99 const size_type __tmp_capacity = __s._M_allocated_capacity;
100 traits_type::copy(__s._M_local_buf, _M_local_buf,
102 _M_data(__s._M_data());
103 __s._M_data(__s._M_local_buf);
104 _M_capacity(__tmp_capacity);
108 const size_type __tmp_capacity = _M_allocated_capacity;
109 if (__s._M_is_local())
111 traits_type::copy(_M_local_buf, __s._M_local_buf,
113 __s._M_data(_M_data());
114 _M_data(_M_local_buf);
118 pointer __tmp_ptr = _M_data();
119 _M_data(__s._M_data());
120 __s._M_data(__tmp_ptr);
121 _M_capacity(__s._M_allocated_capacity);
123 __s._M_capacity(__tmp_capacity);
126 const size_type __tmp_length = length();
127 _M_length(__s.length());
128 __s._M_length(__tmp_length);
131 template<
typename _CharT,
typename _Traits,
typename _Alloc>
133 typename basic_string<_CharT, _Traits, _Alloc>::pointer
134 basic_string<_CharT, _Traits, _Alloc>::
135 _M_create(size_type& __capacity, size_type __old_capacity)
139 if (__capacity > max_size())
140 std::__throw_length_error(__N(
"basic_string::_M_create"));
145 if (__capacity > __old_capacity && __capacity < 2 * __old_capacity)
147 __capacity = 2 * __old_capacity;
149 if (__capacity > max_size())
150 __capacity = max_size();
155 return _Alloc_traits::allocate(_M_get_allocator(), __capacity + 1);
162 template<
typename _CharT,
typename _Traits,
typename _Alloc>
163 template<
typename _InIterator>
166 basic_string<_CharT, _Traits, _Alloc>::
167 _M_construct(_InIterator __beg, _InIterator __end,
171 size_type __capacity = size_type(_S_local_capacity);
173 pointer __p = _M_use_local_data();
175 while (__beg != __end && __len < __capacity)
177 __p[__len++] = *__beg;
184 explicit _Guard(basic_string* __s) : _M_guarded(__s) { }
187 ~_Guard() {
if (_M_guarded) _M_guarded->_M_dispose(); }
189 basic_string* _M_guarded;
192 while (__beg != __end)
194 if (__len == __capacity)
197 __capacity = __len + 1;
198 pointer __another = _M_create(__capacity, __len);
199 this->_S_copy(__another, _M_data(), __len);
202 _M_capacity(__capacity);
204 traits_type::assign(_M_data()[__len++], *__beg);
208 __guard._M_guarded = 0;
210 _M_set_length(__len);
213 template<
typename _CharT,
typename _Traits,
typename _Alloc>
214 template<
typename _InIterator>
217 basic_string<_CharT, _Traits, _Alloc>::
218 _M_construct(_InIterator __beg, _InIterator __end,
221 size_type __dnew =
static_cast<size_type
>(
std::distance(__beg, __end));
223 if (__dnew > size_type(_S_local_capacity))
225 _M_data(_M_create(__dnew, size_type(0)));
235 explicit _Guard(basic_string* __s) : _M_guarded(__s) { }
238 ~_Guard() {
if (_M_guarded) _M_guarded->_M_dispose(); }
240 basic_string* _M_guarded;
243 this->_S_copy_chars(_M_data(), __beg, __end);
245 __guard._M_guarded = 0;
247 _M_set_length(__dnew);
250 template<
typename _CharT,
typename _Traits,
typename _Alloc>
253 basic_string<_CharT, _Traits, _Alloc>::
254 _M_construct(size_type __n, _CharT __c)
256 if (__n > size_type(_S_local_capacity))
258 _M_data(_M_create(__n, size_type(0)));
265 this->_S_assign(_M_data(), __n, __c);
270 template<
typename _CharT,
typename _Traits,
typename _Alloc>
273 basic_string<_CharT, _Traits, _Alloc>::
274 _M_assign(
const basic_string& __str)
278 const size_type __rsize = __str.length();
279 const size_type __capacity = capacity();
281 if (__rsize > __capacity)
283 size_type __new_capacity = __rsize;
284 pointer __tmp = _M_create(__new_capacity, __capacity);
287 _M_capacity(__new_capacity);
291 this->_S_copy(_M_data(), __str._M_data(), __rsize);
293 _M_set_length(__rsize);
297 template<
typename _CharT,
typename _Traits,
typename _Alloc>
303 const size_type __capacity = capacity();
308 if (__res <= __capacity)
311 pointer __tmp = _M_create(__res, __capacity);
312 this->_S_copy(__tmp, _M_data(), length() + 1);
318 template<
typename _CharT,
typename _Traits,
typename _Alloc>
321 basic_string<_CharT, _Traits, _Alloc>::
322 _M_mutate(size_type __pos, size_type __len1,
const _CharT* __s,
325 const size_type __how_much = length() - __pos - __len1;
327 size_type __new_capacity = length() + __len2 - __len1;
328 pointer __r = _M_create(__new_capacity, capacity());
331 this->_S_copy(__r, _M_data(), __pos);
333 this->_S_copy(__r + __pos, __s, __len2);
335 this->_S_copy(__r + __pos + __len2,
336 _M_data() + __pos + __len1, __how_much);
340 _M_capacity(__new_capacity);
343 template<
typename _CharT,
typename _Traits,
typename _Alloc>
346 basic_string<_CharT, _Traits, _Alloc>::
347 _M_erase(size_type __pos, size_type __n)
349 const size_type __how_much = length() - __pos - __n;
351 if (__how_much && __n)
352 this->_S_move(_M_data() + __pos, _M_data() + __pos + __n, __how_much);
354 _M_set_length(length() - __n);
357 template<
typename _CharT,
typename _Traits,
typename _Alloc>
366 const size_type __length = length();
367 const size_type __capacity = _M_allocated_capacity;
369 if (__length <= size_type(_S_local_capacity))
371 this->_S_copy(_M_use_local_data(), _M_data(), __length + 1);
372 _M_destroy(__capacity);
373 _M_data(_M_local_data());
376 else if (__length < __capacity)
380 = _Alloc_traits::allocate(_M_get_allocator(), __length + 1);
381 this->_S_copy(__tmp, _M_data(), __length + 1);
384 _M_capacity(__length);
393 template<
typename _CharT,
typename _Traits,
typename _Alloc>
397 resize(size_type __n, _CharT __c)
399 const size_type __size = this->
size();
401 this->append(__n - __size, __c);
402 else if (__n < __size)
403 this->_M_set_length(__n);
406 template<
typename _CharT,
typename _Traits,
typename _Alloc>
408 basic_string<_CharT, _Traits, _Alloc>&
409 basic_string<_CharT, _Traits, _Alloc>::
410 _M_append(
const _CharT* __s, size_type __n)
412 const size_type __len = __n + this->
size();
414 if (__len <= this->capacity())
417 this->_S_copy(this->_M_data() + this->
size(), __s, __n);
420 this->_M_mutate(this->
size(), size_type(0), __s, __n);
422 this->_M_set_length(__len);
426 template<
typename _CharT,
typename _Traits,
typename _Alloc>
427 template<
typename _InputIterator>
429 basic_string<_CharT, _Traits, _Alloc>&
430 basic_string<_CharT, _Traits, _Alloc>::
431 _M_replace_dispatch(const_iterator __i1, const_iterator __i2,
432 _InputIterator __k1, _InputIterator __k2,
437 const basic_string __s(__k1, __k2, this->get_allocator());
438 const size_type __n1 = __i2 - __i1;
439 return _M_replace(__i1 -
begin(), __n1, __s._M_data(),
443 template<
typename _CharT,
typename _Traits,
typename _Alloc>
445 basic_string<_CharT, _Traits, _Alloc>&
446 basic_string<_CharT, _Traits, _Alloc>::
447 _M_replace_aux(size_type __pos1, size_type __n1, size_type __n2,
450 _M_check_length(__n1, __n2,
"basic_string::_M_replace_aux");
452 const size_type __old_size = this->
size();
453 const size_type __new_size = __old_size + __n2 - __n1;
455 if (__new_size <= this->capacity())
457 pointer __p = this->_M_data() + __pos1;
459 const size_type __how_much = __old_size - __pos1 - __n1;
460 if (__how_much && __n1 != __n2)
461 this->_S_move(__p + __n2, __p + __n1, __how_much);
464 this->_M_mutate(__pos1, __n1, 0, __n2);
467 this->_S_assign(this->_M_data() + __pos1, __n2, __c);
469 this->_M_set_length(__new_size);
473 template<
typename _CharT,
typename _Traits,
typename _Alloc>
475 basic_string<_CharT, _Traits, _Alloc>&
476 basic_string<_CharT, _Traits, _Alloc>::
477 _M_replace(size_type __pos, size_type __len1,
const _CharT* __s,
478 const size_type __len2)
480 _M_check_length(__len1, __len2,
"basic_string::_M_replace");
482 const size_type __old_size = this->
size();
483 const size_type __new_size = __old_size + __len2 - __len1;
485 if (__new_size <= this->capacity())
487 pointer __p = this->_M_data() + __pos;
489 const size_type __how_much = __old_size - __pos - __len1;
490#if __cpp_lib_is_constant_evaluated
493 auto __newp = _Alloc_traits::allocate(_M_get_allocator(),
495 _S_copy(__newp, this->_M_data(), __pos);
496 _S_copy(__newp + __pos, __s, __len2);
497 _S_copy(__newp + __pos + __len2, __p + __len1, __how_much);
498 _S_copy(this->_M_data(), __newp, __new_size);
499 this->_M_get_allocator().deallocate(__newp, __new_size);
503 if (_M_disjunct(__s))
505 if (__how_much && __len1 != __len2)
506 this->_S_move(__p + __len2, __p + __len1, __how_much);
508 this->_S_copy(__p, __s, __len2);
513 if (__len2 && __len2 <= __len1)
514 this->_S_move(__p, __s, __len2);
515 if (__how_much && __len1 != __len2)
516 this->_S_move(__p + __len2, __p + __len1, __how_much);
519 if (__s + __len2 <= __p + __len1)
520 this->_S_move(__p, __s, __len2);
521 else if (__s >= __p + __len1)
525 const size_type __poff = (__s - __p) + (__len2 - __len1);
526 this->_S_copy(__p, __p + __poff, __len2);
530 const size_type __nleft = (__p + __len1) - __s;
531 this->_S_move(__p, __s, __nleft);
534 if (__len2 < __nleft)
535 __builtin_unreachable();
536 this->_S_copy(__p + __nleft, __p + __len2,
543 this->_M_mutate(__pos, __len1, __s, __len2);
545 this->_M_set_length(__new_size);
549 template<
typename _CharT,
typename _Traits,
typename _Alloc>
551 typename basic_string<_CharT, _Traits, _Alloc>::size_type
553 copy(_CharT* __s, size_type __n, size_type __pos)
const
555 _M_check(__pos,
"basic_string::copy");
556 __n = _M_limit(__pos, __n);
557 __glibcxx_requires_string_len(__s, __n);
559 _S_copy(__s, _M_data() + __pos, __n);
564#if __cplusplus > 202002L
565 template<
typename _CharT,
typename _Traits,
typename _Alloc>
566 template<
typename _Operation>
568 basic_string<_CharT, _Traits, _Alloc>::
569 resize_and_overwrite(size_type __n, _Operation __op)
571 const size_type __capacity = capacity();
573 if (__n > __capacity)
575 __p = _M_create(__n, __capacity);
576 this->_S_copy(__p, _M_data(), length());
577#if __cpp_lib_is_constant_evaluated
579 traits_type::assign(__p + length(), __n - length(), _CharT());
588 constexpr ~_Terminator() { _M_this->_M_set_length(_M_r); }
589 basic_string* _M_this;
592 _Terminator __term{
this};
593 const size_type __n2 [[maybe_unused]] = __n;
595 _GLIBCXX_DEBUG_ASSERT(__term._M_r >= 0 && __term._M_r <= __n2);
601#if __cpp_lib_constexpr_string >= 201907L
602# define _GLIBCXX_STRING_CONSTEXPR constexpr
604# define _GLIBCXX_STRING_CONSTEXPR
607 template<
typename _CharT,
typename _Traits,
typename _Alloc>
609 basic_string<_CharT, _Traits, _Alloc>
613 __glibcxx_requires_string(__lhs);
615 typedef typename __string_type::size_type __size_type;
617 rebind<_CharT>::other _Char_alloc_type;
619 const __size_type __len = _Traits::length(__lhs);
620 __string_type __str(_Alloc_traits::_S_select_on_copy(
622 __str.reserve(__len + __rhs.
size());
623 __str.append(__lhs, __len);
628 template<
typename _CharT,
typename _Traits,
typename _Alloc>
630 basic_string<_CharT, _Traits, _Alloc>
634 typedef typename __string_type::size_type __size_type;
636 rebind<_CharT>::other _Char_alloc_type;
638 __string_type __str(_Alloc_traits::_S_select_on_copy(
640 const __size_type __len = __rhs.
size();
641 __str.reserve(__len + 1);
642 __str.append(__size_type(1), __lhs);
647 template<
typename _CharT,
typename _Traits,
typename _Alloc>
648 _GLIBCXX_STRING_CONSTEXPR
649 typename basic_string<_CharT, _Traits, _Alloc>::size_type
651 find(
const _CharT* __s, size_type __pos, size_type __n)
const
654 __glibcxx_requires_string_len(__s, __n);
655 const size_type __size = this->
size();
658 return __pos <= __size ? __pos : npos;
662 const _CharT __elem0 = __s[0];
663 const _CharT*
const __data =
data();
664 const _CharT* __first = __data + __pos;
665 const _CharT*
const __last = __data + __size;
666 size_type __len = __size - __pos;
671 __first = traits_type::find(__first, __len - __n + 1, __elem0);
677 if (traits_type::compare(__first, __s, __n) == 0)
678 return __first - __data;
679 __len = __last - ++__first;
684 template<
typename _CharT,
typename _Traits,
typename _Alloc>
685 _GLIBCXX_STRING_CONSTEXPR
686 typename basic_string<_CharT, _Traits, _Alloc>::size_type
688 find(_CharT __c, size_type __pos)
const _GLIBCXX_NOEXCEPT
690 size_type __ret = npos;
691 const size_type __size = this->
size();
694 const _CharT* __data = _M_data();
695 const size_type __n = __size - __pos;
696 const _CharT* __p = traits_type::find(__data + __pos, __n, __c);
698 __ret = __p - __data;
703 template<
typename _CharT,
typename _Traits,
typename _Alloc>
704 _GLIBCXX_STRING_CONSTEXPR
705 typename basic_string<_CharT, _Traits, _Alloc>::size_type
707 rfind(
const _CharT* __s, size_type __pos, size_type __n)
const
710 __glibcxx_requires_string_len(__s, __n);
711 const size_type __size = this->
size();
714 __pos =
std::min(size_type(__size - __n), __pos);
715 const _CharT* __data = _M_data();
718 if (traits_type::compare(__data + __pos, __s, __n) == 0)
726 template<
typename _CharT,
typename _Traits,
typename _Alloc>
727 _GLIBCXX_STRING_CONSTEXPR
728 typename basic_string<_CharT, _Traits, _Alloc>::size_type
730 rfind(_CharT __c, size_type __pos)
const _GLIBCXX_NOEXCEPT
732 size_type __size = this->
size();
735 if (--__size > __pos)
737 for (++__size; __size-- > 0; )
738 if (traits_type::eq(_M_data()[__size], __c))
744 template<
typename _CharT,
typename _Traits,
typename _Alloc>
745 _GLIBCXX_STRING_CONSTEXPR
746 typename basic_string<_CharT, _Traits, _Alloc>::size_type
748 find_first_of(
const _CharT* __s, size_type __pos, size_type __n)
const
751 __glibcxx_requires_string_len(__s, __n);
752 for (; __n && __pos < this->
size(); ++__pos)
754 const _CharT* __p = traits_type::find(__s, __n, _M_data()[__pos]);
761 template<
typename _CharT,
typename _Traits,
typename _Alloc>
762 _GLIBCXX_STRING_CONSTEXPR
763 typename basic_string<_CharT, _Traits, _Alloc>::size_type
765 find_last_of(
const _CharT* __s, size_type __pos, size_type __n)
const
768 __glibcxx_requires_string_len(__s, __n);
769 size_type __size = this->
size();
772 if (--__size > __pos)
776 if (traits_type::find(__s, __n, _M_data()[__size]))
779 while (__size-- != 0);
784 template<
typename _CharT,
typename _Traits,
typename _Alloc>
785 _GLIBCXX_STRING_CONSTEXPR
786 typename basic_string<_CharT, _Traits, _Alloc>::size_type
791 __glibcxx_requires_string_len(__s, __n);
792 for (; __pos < this->
size(); ++__pos)
793 if (!traits_type::find(__s, __n, _M_data()[__pos]))
798 template<
typename _CharT,
typename _Traits,
typename _Alloc>
799 _GLIBCXX_STRING_CONSTEXPR
800 typename basic_string<_CharT, _Traits, _Alloc>::size_type
804 for (; __pos < this->
size(); ++__pos)
805 if (!traits_type::eq(_M_data()[__pos], __c))
810 template<
typename _CharT,
typename _Traits,
typename _Alloc>
811 _GLIBCXX_STRING_CONSTEXPR
812 typename basic_string<_CharT, _Traits, _Alloc>::size_type
817 __glibcxx_requires_string_len(__s, __n);
818 size_type __size = this->
size();
821 if (--__size > __pos)
825 if (!traits_type::find(__s, __n, _M_data()[__size]))
833 template<
typename _CharT,
typename _Traits,
typename _Alloc>
834 _GLIBCXX_STRING_CONSTEXPR
835 typename basic_string<_CharT, _Traits, _Alloc>::size_type
839 size_type __size = this->
size();
842 if (--__size > __pos)
846 if (!traits_type::eq(_M_data()[__size], __c))
854 template<
typename _CharT,
typename _Traits,
typename _Alloc>
855 _GLIBCXX_STRING_CONSTEXPR
860 _M_check(__pos,
"basic_string::compare");
861 __n = _M_limit(__pos, __n);
862 const size_type __osize = __str.
size();
863 const size_type __len =
std::min(__n, __osize);
864 int __r = traits_type::compare(_M_data() + __pos, __str.
data(), __len);
866 __r = _S_compare(__n, __osize);
870 template<
typename _CharT,
typename _Traits,
typename _Alloc>
871 _GLIBCXX_STRING_CONSTEXPR
875 size_type __pos2, size_type __n2)
const
877 _M_check(__pos1,
"basic_string::compare");
878 __str._M_check(__pos2,
"basic_string::compare");
879 __n1 = _M_limit(__pos1, __n1);
880 __n2 = __str._M_limit(__pos2, __n2);
881 const size_type __len =
std::min(__n1, __n2);
882 int __r = traits_type::compare(_M_data() + __pos1,
883 __str.
data() + __pos2, __len);
885 __r = _S_compare(__n1, __n2);
889 template<
typename _CharT,
typename _Traits,
typename _Alloc>
890 _GLIBCXX_STRING_CONSTEXPR
893 compare(
const _CharT* __s)
const _GLIBCXX_NOEXCEPT
895 __glibcxx_requires_string(__s);
896 const size_type __size = this->
size();
897 const size_type __osize = traits_type::length(__s);
898 const size_type __len =
std::min(__size, __osize);
899 int __r = traits_type::compare(_M_data(), __s, __len);
901 __r = _S_compare(__size, __osize);
905 template<
typename _CharT,
typename _Traits,
typename _Alloc>
906 _GLIBCXX_STRING_CONSTEXPR
909 compare(size_type __pos, size_type __n1,
const _CharT* __s)
const
911 __glibcxx_requires_string(__s);
912 _M_check(__pos,
"basic_string::compare");
913 __n1 = _M_limit(__pos, __n1);
914 const size_type __osize = traits_type::length(__s);
915 const size_type __len =
std::min(__n1, __osize);
916 int __r = traits_type::compare(_M_data() + __pos, __s, __len);
918 __r = _S_compare(__n1, __osize);
922 template<
typename _CharT,
typename _Traits,
typename _Alloc>
923 _GLIBCXX_STRING_CONSTEXPR
926 compare(size_type __pos, size_type __n1,
const _CharT* __s,
927 size_type __n2)
const
929 __glibcxx_requires_string_len(__s, __n2);
930 _M_check(__pos,
"basic_string::compare");
931 __n1 = _M_limit(__pos, __n1);
932 const size_type __len =
std::min(__n1, __n2);
933 int __r = traits_type::compare(_M_data() + __pos, __s, __len);
935 __r = _S_compare(__n1, __n2);
939#undef _GLIBCXX_STRING_CONSTEXPR
942 template<
typename _CharT,
typename _Traits,
typename _Alloc>
949 typedef typename __istream_type::ios_base __ios_base;
950 typedef typename __istream_type::int_type __int_type;
951 typedef typename __string_type::size_type __size_type;
953 typedef typename __ctype_type::ctype_base __ctype_base;
955 __size_type __extracted = 0;
956 typename __ios_base::iostate __err = __ios_base::goodbit;
957 typename __istream_type::sentry __cerb(__in,
false);
965 __size_type __len = 0;
967 const __size_type __n = __w > 0 ?
static_cast<__size_type
>(__w)
969 const __ctype_type& __ct = use_facet<__ctype_type>(__in.
getloc());
970 const __int_type __eof = _Traits::eof();
971 __int_type __c = __in.
rdbuf()->sgetc();
973 while (__extracted < __n
974 && !_Traits::eq_int_type(__c, __eof)
975 && !__ct.is(__ctype_base::space,
976 _Traits::to_char_type(__c)))
978 if (__len ==
sizeof(__buf) /
sizeof(_CharT))
980 __str.
append(__buf,
sizeof(__buf) /
sizeof(_CharT));
983 __buf[__len++] = _Traits::to_char_type(__c);
985 __c = __in.
rdbuf()->snextc();
987 __str.
append(__buf, __len);
989 if (__extracted < __n && _Traits::eq_int_type(__c, __eof))
990 __err |= __ios_base::eofbit;
995 __in._M_setstate(__ios_base::badbit);
996 __throw_exception_again;
1003 __in._M_setstate(__ios_base::badbit);
1008 __err |= __ios_base::failbit;
1014 template<
typename _CharT,
typename _Traits,
typename _Alloc>
1015 basic_istream<_CharT, _Traits>&
1021 typedef typename __istream_type::ios_base __ios_base;
1022 typedef typename __istream_type::int_type __int_type;
1023 typedef typename __string_type::size_type __size_type;
1025 __size_type __extracted = 0;
1026 const __size_type __n = __str.
max_size();
1027 typename __ios_base::iostate __err = __ios_base::goodbit;
1028 typename __istream_type::sentry __cerb(__in,
true);
1034 const __int_type __idelim = _Traits::to_int_type(__delim);
1035 const __int_type __eof = _Traits::eof();
1036 __int_type __c = __in.
rdbuf()->sgetc();
1038 while (__extracted < __n
1039 && !_Traits::eq_int_type(__c, __eof)
1040 && !_Traits::eq_int_type(__c, __idelim))
1042 __str += _Traits::to_char_type(__c);
1044 __c = __in.
rdbuf()->snextc();
1047 if (_Traits::eq_int_type(__c, __eof))
1048 __err |= __ios_base::eofbit;
1049 else if (_Traits::eq_int_type(__c, __idelim))
1052 __in.
rdbuf()->sbumpc();
1055 __err |= __ios_base::failbit;
1059 __in._M_setstate(__ios_base::badbit);
1060 __throw_exception_again;
1067 __in._M_setstate(__ios_base::badbit);
1071 __err |= __ios_base::failbit;
1079#if _GLIBCXX_EXTERN_TEMPLATE
1085# if __cplusplus <= 201703L && _GLIBCXX_EXTERN_TEMPLATE > 0
1086 extern template class basic_string<char>;
1087# elif ! _GLIBCXX_USE_CXX11_ABI
1090 extern template basic_string<char>::size_type
1091 basic_string<char>::_Rep::_S_empty_rep_storage[];
1095 basic_istream<char>&
1098 basic_ostream<char>&
1099 operator<<(basic_ostream<char>&,
const string&);
1101 basic_istream<char>&
1102 getline(basic_istream<char>&,
string&,
char);
1104 basic_istream<char>&
1105 getline(basic_istream<char>&,
string&);
1107#ifdef _GLIBCXX_USE_WCHAR_T
1108# if __cplusplus <= 201703L && _GLIBCXX_EXTERN_TEMPLATE > 0
1109 extern template class basic_string<wchar_t>;
1110# elif ! _GLIBCXX_USE_CXX11_ABI
1111 extern template basic_string<wchar_t>::size_type
1112 basic_string<wchar_t>::_Rep::_S_empty_rep_storage[];
1116 basic_istream<wchar_t>&
1119 basic_ostream<wchar_t>&
1122 basic_istream<wchar_t>&
1125 basic_istream<wchar_t>&
1130_GLIBCXX_END_NAMESPACE_VERSION
constexpr complex< _Tp > operator+(const complex< _Tp > &__x, const complex< _Tp > &__y)
Return new complex value x plus y.
constexpr bool is_constant_evaluated() noexcept
Returns true only when called during constant evaluation.
constexpr std::remove_reference< _Tp >::type && move(_Tp &&__t) noexcept
Convert a value to an rvalue.
constexpr _Tp * __addressof(_Tp &__r) noexcept
Same as C++11 std::addressof.
_Tp * begin(valarray< _Tp > &__va) noexcept
Return an iterator pointing to the first element of the valarray.
constexpr const _Tp & min(const _Tp &, const _Tp &)
This does what you think it does.
basic_string< wchar_t > wstring
A string of wchar_t.
ISO C++ entities toplevel namespace is std.
ptrdiff_t streamsize
Integral type for I/O operation counts and buffer sizes.
basic_istream< _CharT, _Traits > & getline(basic_istream< _CharT, _Traits > &__is, basic_string< _CharT, _Traits, _Alloc > &__str, _CharT __delim)
Read a line from stream into a string.
constexpr iterator_traits< _InputIterator >::difference_type distance(_InputIterator __first, _InputIterator __last)
A generalization of pointer arithmetic.
constexpr auto size(const _Container &__cont) noexcept(noexcept(__cont.size())) -> decltype(__cont.size())
Return the size of a container.
std::basic_istream< _CharT, _Traits > & operator>>(std::basic_istream< _CharT, _Traits > &__is, bitset< _Nb > &__x)
Global I/O operators for bitsets.
std::basic_ostream< _CharT, _Traits > & operator<<(std::basic_ostream< _CharT, _Traits > &__os, const bitset< _Nb > &__x)
Global I/O operators for bitsets.
constexpr auto data(_Container &__cont) noexcept(noexcept(__cont.data())) -> decltype(__cont.data())
Return the data pointer of a container.
void setstate(iostate __state)
Sets additional flags in the error state.
basic_streambuf< _CharT, _Traits > * rdbuf() const
Accessing the underlying buffer.
Template class basic_istream.
Managing sequences of characters and character-like objects.
void swap(basic_string &__s) noexcept(/*conditional */)
Swap contents with another string.
size_type find_first_of(const basic_string &__str, size_type __pos=0) const noexcept
Find position of a character of string.
const _CharT * data() const noexcept
Return const pointer to contents.
size_type find(const _CharT *__s, size_type __pos, size_type __n) const noexcept
Find position of a C substring.
size_type find_last_not_of(const basic_string &__str, size_type __pos=npos) const noexcept
Find last position of a character not in string.
int compare(const basic_string &__str) const
Compare to a string.
size_type find_first_not_of(const basic_string &__str, size_type __pos=0) const noexcept
Find position of a character not in string.
size_type copy(_CharT *__s, size_type __n, size_type __pos=0) const
Copy substring into C string.
size_type find_last_of(const basic_string &__str, size_type __pos=npos) const noexcept
Find last position of a character of string.
size_type size() const noexcept
Returns the number of characters in the string, not including any null-termination.
size_type rfind(const basic_string &__str, size_type __pos=npos) const noexcept
Find last position of a string.
void resize(size_type __n, _CharT __c)
Resizes the string to the specified number of characters.
void reserve()
Equivalent to shrink_to_fit().
basic_string & append(const basic_string &__str)
Append a string to this string.
static const size_type npos
Value returned by various member functions when they fail.
allocator_type get_allocator() const noexcept
Return copy of allocator used to construct this string.
size_type max_size() const noexcept
Returns the size() of the largest possible string.
basic_string & erase(size_type __pos=0, size_type __n=npos)
Remove characters.
Thrown as part of forced unwinding.
streamsize width() const
Flags access.
locale getloc() const
Locale access.
Primary class template ctype facet.
Forward iterators support a superset of input iterator operations.
Uniform interface to C++98 and C++11 allocators.