1 // Versatile string -*- C++ -*-
 
    3 // Copyright (C) 2005-2014 Free Software Foundation, Inc.
 
    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)
 
   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.
 
   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.
 
   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/>.
 
   25 /** @file ext/vstring.tcc
 
   26  *  This is an internal header file, included by other library headers.
 
   27  *  Do not attempt to use it directly. @headername{ext/vstring.h}
 
   31 #define _VSTRING_TCC 1
 
   33 #pragma GCC system_header
 
   35 #include <bits/cxxabi_forced.h>
 
   37 namespace __gnu_cxx _GLIBCXX_VISIBILITY(default)
 
   39 _GLIBCXX_BEGIN_NAMESPACE_VERSION
 
   41   template<typename _CharT, typename _Traits, typename _Alloc,
 
   42       template <typename, typename, typename> class _Base>
 
   43     const typename __versa_string<_CharT, _Traits, _Alloc, _Base>::size_type
 
   44     __versa_string<_CharT, _Traits, _Alloc, _Base>::npos;
 
   46   template<typename _CharT, typename _Traits, typename _Alloc,
 
   47       template <typename, typename, typename> class _Base>
 
   49     __versa_string<_CharT, _Traits, _Alloc, _Base>::
 
   50     resize(size_type __n, _CharT __c)
 
   52       const size_type __size = this->size();
 
   54    this->append(__n - __size, __c);
 
   55       else if (__n < __size)
 
   56    this->_M_erase(__n, __size - __n);
 
   59   template<typename _CharT, typename _Traits, typename _Alloc,
 
   60       template <typename, typename, typename> class _Base>
 
   61     __versa_string<_CharT, _Traits, _Alloc, _Base>&
 
   62     __versa_string<_CharT, _Traits, _Alloc, _Base>::
 
   63     _M_append(const _CharT* __s, size_type __n)
 
   65       const size_type __len = __n + this->size();
 
   67       if (__len <= this->capacity() && !this->_M_is_shared())
 
   70        this->_S_copy(this->_M_data() + this->size(), __s, __n);
 
   73    this->_M_mutate(this->size(), size_type(0), __s, __n);
 
   75       this->_M_set_length(__len);
 
   79   template<typename _CharT, typename _Traits, typename _Alloc,
 
   80       template <typename, typename, typename> class _Base>
 
   81     template<typename _InputIterator>
 
   82       __versa_string<_CharT, _Traits, _Alloc, _Base>&
 
   83       __versa_string<_CharT, _Traits, _Alloc, _Base>::
 
   84       _M_replace_dispatch(const_iterator __i1, const_iterator __i2,
 
   85              _InputIterator __k1, _InputIterator __k2,
 
   88    const __versa_string __s(__k1, __k2);
 
   89    const size_type __n1 = __i2 - __i1;
 
   90    return _M_replace(__i1 - _M_ibegin(), __n1, __s._M_data(),
 
   94   template<typename _CharT, typename _Traits, typename _Alloc,
 
   95       template <typename, typename, typename> class _Base>
 
   96     __versa_string<_CharT, _Traits, _Alloc, _Base>&
 
   97     __versa_string<_CharT, _Traits, _Alloc, _Base>::
 
   98     _M_replace_aux(size_type __pos1, size_type __n1, size_type __n2,
 
  101       _M_check_length(__n1, __n2, "__versa_string::_M_replace_aux");
 
  103       const size_type __old_size = this->size();
 
  104       const size_type __new_size = __old_size + __n2 - __n1;
 
  106       if (__new_size <= this->capacity() && !this->_M_is_shared())
 
  108      _CharT* __p = this->_M_data() + __pos1;
 
  110      const size_type __how_much = __old_size - __pos1 - __n1;
 
  111      if (__how_much && __n1 != __n2)
 
  112        this->_S_move(__p + __n2, __p + __n1, __how_much);
 
  115    this->_M_mutate(__pos1, __n1, 0, __n2);
 
  118    this->_S_assign(this->_M_data() + __pos1, __n2, __c);
 
  120       this->_M_set_length(__new_size);
 
  124   template<typename _CharT, typename _Traits, typename _Alloc,
 
  125       template <typename, typename, typename> class _Base>
 
  126     __versa_string<_CharT, _Traits, _Alloc, _Base>&
 
  127     __versa_string<_CharT, _Traits, _Alloc, _Base>::
 
  128     _M_replace(size_type __pos, size_type __len1, const _CharT* __s,
 
  129           const size_type __len2)
 
  131       _M_check_length(__len1, __len2, "__versa_string::_M_replace");
 
  133       const size_type __old_size = this->size();
 
  134       const size_type __new_size = __old_size + __len2 - __len1;
 
  136       if (__new_size <= this->capacity() && !this->_M_is_shared())
 
  138      _CharT* __p = this->_M_data() + __pos;
 
  140      const size_type __how_much = __old_size - __pos - __len1;
 
  141      if (_M_disjunct(__s))
 
  143          if (__how_much && __len1 != __len2)
 
  144        this->_S_move(__p + __len2, __p + __len1, __how_much);
 
  146        this->_S_copy(__p, __s, __len2);
 
  151          if (__len2 && __len2 <= __len1)
 
  152        this->_S_move(__p, __s, __len2);
 
  153          if (__how_much && __len1 != __len2)
 
  154        this->_S_move(__p + __len2, __p + __len1, __how_much);
 
  157          if (__s + __len2 <= __p + __len1)
 
  158            this->_S_move(__p, __s, __len2);
 
  159          else if (__s >= __p + __len1)
 
  160            this->_S_copy(__p, __s + __len2 - __len1, __len2);
 
  163              const size_type __nleft = (__p + __len1) - __s;
 
  164              this->_S_move(__p, __s, __nleft);
 
  165              this->_S_copy(__p + __nleft, __p + __len2,
 
  172    this->_M_mutate(__pos, __len1, __s, __len2);
 
  174       this->_M_set_length(__new_size);
 
  178   template<typename _CharT, typename _Traits, typename _Alloc,
 
  179       template <typename, typename, typename> class _Base>
 
  180     __versa_string<_CharT, _Traits, _Alloc, _Base>
 
  181     operator+(const __versa_string<_CharT, _Traits, _Alloc, _Base>& __lhs,
 
  182          const __versa_string<_CharT, _Traits, _Alloc, _Base>& __rhs)
 
  184       __versa_string<_CharT, _Traits, _Alloc, _Base> __str;
 
  185       __str.reserve(__lhs.size() + __rhs.size());
 
  191   template<typename _CharT, typename _Traits, typename _Alloc,
 
  192       template <typename, typename, typename> class _Base>
 
  193     __versa_string<_CharT, _Traits, _Alloc, _Base>
 
  194     operator+(const _CharT* __lhs,
 
  195          const __versa_string<_CharT, _Traits, _Alloc, _Base>& __rhs)
 
  197       __glibcxx_requires_string(__lhs);
 
  198       typedef __versa_string<_CharT, _Traits, _Alloc, _Base> __string_type;
 
  199       typedef typename __string_type::size_type      __size_type;
 
  200       const __size_type __len = _Traits::length(__lhs);
 
  202       __str.reserve(__len + __rhs.size());
 
  203       __str.append(__lhs, __len);
 
  208   template<typename _CharT, typename _Traits, typename _Alloc,
 
  209       template <typename, typename, typename> class _Base>
 
  210     __versa_string<_CharT, _Traits, _Alloc, _Base>
 
  211     operator+(_CharT __lhs,
 
  212          const __versa_string<_CharT, _Traits, _Alloc, _Base>& __rhs)
 
  214       __versa_string<_CharT, _Traits, _Alloc, _Base> __str;
 
  215       __str.reserve(__rhs.size() + 1);
 
  216       __str.push_back(__lhs);
 
  221   template<typename _CharT, typename _Traits, typename _Alloc,
 
  222       template <typename, typename, typename> class _Base>
 
  223     __versa_string<_CharT, _Traits, _Alloc, _Base>
 
  224     operator+(const __versa_string<_CharT, _Traits, _Alloc, _Base>& __lhs,
 
  227       __glibcxx_requires_string(__rhs);
 
  228       typedef __versa_string<_CharT, _Traits, _Alloc, _Base> __string_type;
 
  229       typedef typename __string_type::size_type      __size_type;
 
  230       const __size_type __len = _Traits::length(__rhs);
 
  232       __str.reserve(__lhs.size() + __len);
 
  234       __str.append(__rhs, __len);
 
  238   template<typename _CharT, typename _Traits, typename _Alloc,
 
  239       template <typename, typename, typename> class _Base>
 
  240     __versa_string<_CharT, _Traits, _Alloc, _Base>
 
  241     operator+(const __versa_string<_CharT, _Traits, _Alloc, _Base>& __lhs,
 
  244       __versa_string<_CharT, _Traits, _Alloc, _Base> __str;
 
  245       __str.reserve(__lhs.size() + 1);
 
  247       __str.push_back(__rhs);
 
  251   template<typename _CharT, typename _Traits, typename _Alloc,
 
  252       template <typename, typename, typename> class _Base>
 
  253     typename __versa_string<_CharT, _Traits, _Alloc, _Base>::size_type
 
  254     __versa_string<_CharT, _Traits, _Alloc, _Base>::
 
  255     copy(_CharT* __s, size_type __n, size_type __pos) const
 
  257       _M_check(__pos, "__versa_string::copy");
 
  258       __n = _M_limit(__pos, __n);
 
  259       __glibcxx_requires_string_len(__s, __n);
 
  261    this->_S_copy(__s, this->_M_data() + __pos, __n);
 
  262       // 21.3.5.7 par 3: do not append null.  (good.)
 
  266   template<typename _CharT, typename _Traits, typename _Alloc,
 
  267       template <typename, typename, typename> class _Base>
 
  268     typename __versa_string<_CharT, _Traits, _Alloc, _Base>::size_type
 
  269     __versa_string<_CharT, _Traits, _Alloc, _Base>::
 
  270     find(const _CharT* __s, size_type __pos, size_type __n) const
 
  272       __glibcxx_requires_string_len(__s, __n);
 
  273       const size_type __size = this->size();
 
  274       const _CharT* __data = this->_M_data();
 
  277    return __pos <= __size ? __pos : npos;
 
  281      for (; __pos <= __size - __n; ++__pos)
 
  282        if (traits_type::eq(__data[__pos], __s[0])
 
  283        && traits_type::compare(__data + __pos + 1,
 
  284                    __s + 1, __n - 1) == 0)
 
  290   template<typename _CharT, typename _Traits, typename _Alloc,
 
  291       template <typename, typename, typename> class _Base>
 
  292     typename __versa_string<_CharT, _Traits, _Alloc, _Base>::size_type
 
  293     __versa_string<_CharT, _Traits, _Alloc, _Base>::
 
  294     find(_CharT __c, size_type __pos) const _GLIBCXX_NOEXCEPT
 
  296       size_type __ret = npos;
 
  297       const size_type __size = this->size();
 
  300      const _CharT* __data = this->_M_data();
 
  301      const size_type __n = __size - __pos;
 
  302      const _CharT* __p = traits_type::find(__data + __pos, __n, __c);
 
  304        __ret = __p - __data;
 
  309   template<typename _CharT, typename _Traits, typename _Alloc,
 
  310       template <typename, typename, typename> class _Base>
 
  311     typename __versa_string<_CharT, _Traits, _Alloc, _Base>::size_type
 
  312     __versa_string<_CharT, _Traits, _Alloc, _Base>::
 
  313     rfind(const _CharT* __s, size_type __pos, size_type __n) const
 
  315       __glibcxx_requires_string_len(__s, __n);
 
  316       const size_type __size = this->size();
 
  319      __pos = std::min(size_type(__size - __n), __pos);
 
  320      const _CharT* __data = this->_M_data();
 
  323          if (traits_type::compare(__data + __pos, __s, __n) == 0)
 
  331   template<typename _CharT, typename _Traits, typename _Alloc,
 
  332       template <typename, typename, typename> class _Base>
 
  333     typename __versa_string<_CharT, _Traits, _Alloc, _Base>::size_type
 
  334     __versa_string<_CharT, _Traits, _Alloc, _Base>::
 
  335     rfind(_CharT __c, size_type __pos) const _GLIBCXX_NOEXCEPT
 
  337       size_type __size = this->size();
 
  340      if (--__size > __pos)
 
  342      for (++__size; __size-- > 0; )
 
  343        if (traits_type::eq(this->_M_data()[__size], __c))
 
  349   template<typename _CharT, typename _Traits, typename _Alloc,
 
  350       template <typename, typename, typename> class _Base>
 
  351     typename __versa_string<_CharT, _Traits, _Alloc, _Base>::size_type
 
  352     __versa_string<_CharT, _Traits, _Alloc, _Base>::
 
  353     find_first_of(const _CharT* __s, size_type __pos, size_type __n) const
 
  355       __glibcxx_requires_string_len(__s, __n);
 
  356       for (; __n && __pos < this->size(); ++__pos)
 
  358      const _CharT* __p = traits_type::find(__s, __n,
 
  359                        this->_M_data()[__pos]);
 
  366   template<typename _CharT, typename _Traits, typename _Alloc,
 
  367       template <typename, typename, typename> class _Base>
 
  368     typename __versa_string<_CharT, _Traits, _Alloc, _Base>::size_type
 
  369     __versa_string<_CharT, _Traits, _Alloc, _Base>::
 
  370     find_last_of(const _CharT* __s, size_type __pos, size_type __n) const
 
  372       __glibcxx_requires_string_len(__s, __n);
 
  373       size_type __size = this->size();
 
  376      if (--__size > __pos)
 
  380          if (traits_type::find(__s, __n, this->_M_data()[__size]))
 
  383      while (__size-- != 0);
 
  388   template<typename _CharT, typename _Traits, typename _Alloc,
 
  389       template <typename, typename, typename> class _Base>
 
  390     typename __versa_string<_CharT, _Traits, _Alloc, _Base>::size_type
 
  391     __versa_string<_CharT, _Traits, _Alloc, _Base>::
 
  392     find_first_not_of(const _CharT* __s, size_type __pos, size_type __n) const
 
  394       __glibcxx_requires_string_len(__s, __n);
 
  395       for (; __pos < this->size(); ++__pos)
 
  396    if (!traits_type::find(__s, __n, this->_M_data()[__pos]))
 
  401   template<typename _CharT, typename _Traits, typename _Alloc,
 
  402       template <typename, typename, typename> class _Base>
 
  403     typename __versa_string<_CharT, _Traits, _Alloc, _Base>::size_type
 
  404     __versa_string<_CharT, _Traits, _Alloc, _Base>::
 
  405     find_first_not_of(_CharT __c, size_type __pos) const _GLIBCXX_NOEXCEPT
 
  407       for (; __pos < this->size(); ++__pos)
 
  408    if (!traits_type::eq(this->_M_data()[__pos], __c))
 
  413   template<typename _CharT, typename _Traits, typename _Alloc,
 
  414       template <typename, typename, typename> class _Base>
 
  415     typename __versa_string<_CharT, _Traits, _Alloc, _Base>::size_type
 
  416     __versa_string<_CharT, _Traits, _Alloc, _Base>::
 
  417     find_last_not_of(const _CharT* __s, size_type __pos, size_type __n) const
 
  419       __glibcxx_requires_string_len(__s, __n);
 
  420       size_type __size = this->size();
 
  423      if (--__size > __pos)
 
  427          if (!traits_type::find(__s, __n, this->_M_data()[__size]))
 
  435   template<typename _CharT, typename _Traits, typename _Alloc,
 
  436       template <typename, typename, typename> class _Base>
 
  437     typename __versa_string<_CharT, _Traits, _Alloc, _Base>::size_type
 
  438     __versa_string<_CharT, _Traits, _Alloc, _Base>::
 
  439     find_last_not_of(_CharT __c, size_type __pos) const _GLIBCXX_NOEXCEPT
 
  441       size_type __size = this->size();
 
  444      if (--__size > __pos)
 
  448          if (!traits_type::eq(this->_M_data()[__size], __c))
 
  456   template<typename _CharT, typename _Traits, typename _Alloc,
 
  457       template <typename, typename, typename> class _Base>
 
  459     __versa_string<_CharT, _Traits, _Alloc, _Base>::
 
  460     compare(size_type __pos, size_type __n, const __versa_string& __str) const
 
  462       _M_check(__pos, "__versa_string::compare");
 
  463       __n = _M_limit(__pos, __n);
 
  464       const size_type __osize = __str.size();
 
  465       const size_type __len = std::min(__n, __osize);
 
  466       int __r = traits_type::compare(this->_M_data() + __pos,
 
  467                     __str.data(), __len);
 
  469    __r = this->_S_compare(__n, __osize);
 
  473   template<typename _CharT, typename _Traits, typename _Alloc,
 
  474       template <typename, typename, typename> class _Base>
 
  476     __versa_string<_CharT, _Traits, _Alloc, _Base>::
 
  477     compare(size_type __pos1, size_type __n1, const __versa_string& __str,
 
  478        size_type __pos2, size_type __n2) const
 
  480       _M_check(__pos1, "__versa_string::compare");
 
  481       __str._M_check(__pos2, "__versa_string::compare");
 
  482       __n1 = _M_limit(__pos1, __n1);
 
  483       __n2 = __str._M_limit(__pos2, __n2);
 
  484       const size_type __len = std::min(__n1, __n2);
 
  485       int __r = traits_type::compare(this->_M_data() + __pos1,
 
  486                     __str.data() + __pos2, __len);
 
  488    __r = this->_S_compare(__n1, __n2);
 
  492   template<typename _CharT, typename _Traits, typename _Alloc,
 
  493       template <typename, typename, typename> class _Base>
 
  495     __versa_string<_CharT, _Traits, _Alloc, _Base>::
 
  496     compare(const _CharT* __s) const
 
  498       __glibcxx_requires_string(__s);
 
  499       const size_type __size = this->size();
 
  500       const size_type __osize = traits_type::length(__s);
 
  501       const size_type __len = std::min(__size, __osize);
 
  502       int __r = traits_type::compare(this->_M_data(), __s, __len);
 
  504    __r = this->_S_compare(__size, __osize);
 
  508   template<typename _CharT, typename _Traits, typename _Alloc,
 
  509       template <typename, typename, typename> class _Base>
 
  511     __versa_string <_CharT, _Traits, _Alloc, _Base>::
 
  512     compare(size_type __pos, size_type __n1, const _CharT* __s) const
 
  514       __glibcxx_requires_string(__s);
 
  515       _M_check(__pos, "__versa_string::compare");
 
  516       __n1 = _M_limit(__pos, __n1);
 
  517       const size_type __osize = traits_type::length(__s);
 
  518       const size_type __len = std::min(__n1, __osize);
 
  519       int __r = traits_type::compare(this->_M_data() + __pos, __s, __len);
 
  521    __r = this->_S_compare(__n1, __osize);
 
  525   template<typename _CharT, typename _Traits, typename _Alloc,
 
  526       template <typename, typename, typename> class _Base>
 
  528     __versa_string <_CharT, _Traits, _Alloc, _Base>::
 
  529     compare(size_type __pos, size_type __n1, const _CharT* __s,
 
  530        size_type __n2) const
 
  532       __glibcxx_requires_string_len(__s, __n2);
 
  533       _M_check(__pos, "__versa_string::compare");
 
  534       __n1 = _M_limit(__pos, __n1);
 
  535       const size_type __len = std::min(__n1, __n2);
 
  536       int __r = traits_type::compare(this->_M_data() + __pos, __s, __len);
 
  538    __r = this->_S_compare(__n1, __n2);
 
  542 _GLIBCXX_END_NAMESPACE_VERSION
 
  545 namespace std _GLIBCXX_VISIBILITY(default)
 
  547 _GLIBCXX_BEGIN_NAMESPACE_VERSION
 
  549   template<typename _CharT, typename _Traits, typename _Alloc,
 
  550            template <typename, typename, typename> class _Base>
 
  551     basic_istream<_CharT, _Traits>&
 
  552     operator>>(basic_istream<_CharT, _Traits>& __in,
 
  553           __gnu_cxx::__versa_string<_CharT, _Traits,
 
  554                                     _Alloc, _Base>& __str)
 
  556       typedef basic_istream<_CharT, _Traits>            __istream_type;
 
  557       typedef typename __istream_type::ios_base         __ios_base;
 
  558       typedef __gnu_cxx::__versa_string<_CharT, _Traits, _Alloc, _Base>
 
  560       typedef typename __istream_type::int_type        __int_type;
 
  561       typedef typename __string_type::size_type        __size_type;
 
  562       typedef ctype<_CharT>                __ctype_type;
 
  563       typedef typename __ctype_type::ctype_base         __ctype_base;
 
  565       __size_type __extracted = 0;
 
  566       typename __ios_base::iostate __err = __ios_base::goodbit;
 
  567       typename __istream_type::sentry __cerb(__in, false);
 
  572          // Avoid reallocation for common case.
 
  575          __size_type __len = 0;
 
  576          const streamsize __w = __in.width();
 
  577          const __size_type __n = __w > 0 ? static_cast<__size_type>(__w)
 
  579          const __ctype_type& __ct = use_facet<__ctype_type>(__in.getloc());
 
  580          const __int_type __eof = _Traits::eof();
 
  581          __int_type __c = __in.rdbuf()->sgetc();
 
  583          while (__extracted < __n
 
  584             && !_Traits::eq_int_type(__c, __eof)
 
  585             && !__ct.is(__ctype_base::space,
 
  586                 _Traits::to_char_type(__c)))
 
  588          if (__len == sizeof(__buf) / sizeof(_CharT))
 
  590              __str.append(__buf, sizeof(__buf) / sizeof(_CharT));
 
  593          __buf[__len++] = _Traits::to_char_type(__c);
 
  595          __c = __in.rdbuf()->snextc();
 
  597          __str.append(__buf, __len);
 
  599          if (_Traits::eq_int_type(__c, __eof))
 
  600        __err |= __ios_base::eofbit;
 
  603      __catch(__cxxabiv1::__forced_unwind&)
 
  605          __in._M_setstate(__ios_base::badbit);
 
  606          __throw_exception_again;
 
  610          // _GLIBCXX_RESOLVE_LIB_DEFECTS
 
  611          // 91. Description of operator>> and getline() for string<>
 
  612          // might cause endless loop
 
  613          __in._M_setstate(__ios_base::badbit);
 
  616       // 211.  operator>>(istream&, string&) doesn't set failbit
 
  618    __err |= __ios_base::failbit;
 
  620    __in.setstate(__err);
 
  624   template<typename _CharT, typename _Traits, typename _Alloc,
 
  625            template <typename, typename, typename> class _Base>
 
  626     basic_istream<_CharT, _Traits>&
 
  627     getline(basic_istream<_CharT, _Traits>& __in,
 
  628        __gnu_cxx::__versa_string<_CharT, _Traits, _Alloc, _Base>& __str,
 
  631       typedef basic_istream<_CharT, _Traits>           __istream_type;
 
  632       typedef typename __istream_type::ios_base         __ios_base;
 
  633       typedef __gnu_cxx::__versa_string<_CharT, _Traits, _Alloc, _Base>
 
  635       typedef typename __istream_type::int_type        __int_type;
 
  636       typedef typename __string_type::size_type        __size_type;
 
  638       __size_type __extracted = 0;
 
  639       const __size_type __n = __str.max_size();
 
  640       typename __ios_base::iostate __err = __ios_base::goodbit;
 
  641       typename __istream_type::sentry __cerb(__in, true);
 
  646          // Avoid reallocation for common case.
 
  649          __size_type __len = 0;
 
  650          const __int_type __idelim = _Traits::to_int_type(__delim);
 
  651          const __int_type __eof = _Traits::eof();
 
  652          __int_type __c = __in.rdbuf()->sgetc();
 
  654          while (__extracted < __n
 
  655             && !_Traits::eq_int_type(__c, __eof)
 
  656             && !_Traits::eq_int_type(__c, __idelim))
 
  658          if (__len == sizeof(__buf) / sizeof(_CharT))
 
  660              __str.append(__buf, sizeof(__buf) / sizeof(_CharT));
 
  663          __buf[__len++] = _Traits::to_char_type(__c);
 
  665          __c = __in.rdbuf()->snextc();
 
  667          __str.append(__buf, __len);
 
  669          if (_Traits::eq_int_type(__c, __eof))
 
  670        __err |= __ios_base::eofbit;
 
  671          else if (_Traits::eq_int_type(__c, __idelim))
 
  674          __in.rdbuf()->sbumpc();
 
  677        __err |= __ios_base::failbit;
 
  679      __catch(__cxxabiv1::__forced_unwind&)
 
  681          __in._M_setstate(__ios_base::badbit);
 
  682          __throw_exception_again;
 
  686          // _GLIBCXX_RESOLVE_LIB_DEFECTS
 
  687          // 91. Description of operator>> and getline() for string<>
 
  688          // might cause endless loop
 
  689          __in._M_setstate(__ios_base::badbit);
 
  693    __err |= __ios_base::failbit;
 
  695    __in.setstate(__err);
 
  699 _GLIBCXX_END_NAMESPACE_VERSION
 
  702 #endif // _VSTRING_TCC