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Diffstat (limited to 'contrib/libstdc++/src/fstream.cc')
| -rw-r--r-- | contrib/libstdc++/src/fstream.cc | 202 |
1 files changed, 0 insertions, 202 deletions
diff --git a/contrib/libstdc++/src/fstream.cc b/contrib/libstdc++/src/fstream.cc deleted file mode 100644 index 2a099d6..0000000 --- a/contrib/libstdc++/src/fstream.cc +++ /dev/null @@ -1,202 +0,0 @@ -// File based streams -*- C++ -*- - -// Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003 -// Free Software Foundation, Inc. -// -// This file is part of the GNU ISO C++ Library. This library is free -// software; you can redistribute it and/or modify it under the -// terms of the GNU General Public License as published by the -// Free Software Foundation; either version 2, or (at your option) -// any later version. - -// This library is distributed in the hope that it will be useful, -// but WITHOUT ANY WARRANTY; without even the implied warranty of -// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -// GNU General Public License for more details. - -// You should have received a copy of the GNU General Public License along -// with this library; see the file COPYING. If not, write to the Free -// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, -// USA. - -// As a special exception, you may use this file as part of a free software -// library without restriction. Specifically, if other files instantiate -// templates or use macros or inline functions from this file, or you compile -// this file and link it with other files to produce an executable, this -// file does not by itself cause the resulting executable to be covered by -// the GNU General Public License. This exception does not however -// invalidate any other reasons why the executable file might be covered by -// the GNU General Public License. - -// -// ISO C++ 14882: 27.8 File-based streams -// - -#include <fstream> - -namespace std -{ - template<> - basic_filebuf<char>::int_type - basic_filebuf<char>::_M_underflow_common(bool __bump) - { - int_type __ret = traits_type::eof(); - bool __testin = _M_mode & ios_base::in; - bool __testout = _M_mode & ios_base::out; - - if (__testin) - { - // Check for pback madness, and if so swich back to the - // normal buffers and jet outta here before expensive - // fileops happen... - if (_M_pback_init) - _M_pback_destroy(); - - if (_M_in_cur && _M_in_cur < _M_in_end) - { - __ret = traits_type::to_int_type(*_M_in_cur); - if (__bump) - _M_in_cur_move(1); - return __ret; - } - - // Sync internal and external buffers. - // NB: __testget -> __testput as _M_buf_unified here. - bool __testget = _M_in_cur && _M_in_beg < _M_in_cur; - bool __testinit = _M_is_indeterminate(); - if (__testget) - { - if (__testout) - _M_really_overflow(); - else if (_M_in_cur != _M_filepos) - _M_file.seekoff(_M_in_cur - _M_filepos, - ios_base::cur, ios_base::in); - } - - if (__testinit || __testget) - { - streamsize __elen = 0; - streamsize __ilen = 0; - __elen = _M_file.xsgetn(reinterpret_cast<char*>(_M_in_beg), - _M_buf_size); - __ilen = __elen; - - if (0 < __ilen) - { - _M_set_determinate(__ilen); - if (__testout) - _M_out_cur = _M_in_cur; - __ret = traits_type::to_int_type(*_M_in_cur); - if (__bump) - _M_in_cur_move(1); - else if (_M_buf_size == 1) - { - // If we are synced with stdio, we have to unget the - // character we just read so that the file pointer - // doesn't move. - _M_file.sys_ungetc(traits_type::to_int_type(*_M_in_cur)); - _M_set_indeterminate(); - } - } - } - } - _M_last_overflowed = false; - return __ret; - } - -#ifdef _GLIBCPP_USE_WCHAR_T - template<> - basic_filebuf<wchar_t>::int_type - basic_filebuf<wchar_t>::_M_underflow_common(bool __bump) - { - int_type __ret = traits_type::eof(); - bool __testin = _M_mode & ios_base::in; - bool __testout = _M_mode & ios_base::out; - - if (__testin) - { - // Check for pback madness, and if so swich back to the - // normal buffers and jet outta here before expensive - // fileops happen... - if (_M_pback_init) - _M_pback_destroy(); - - if (_M_in_cur && _M_in_cur < _M_in_end) - { - __ret = traits_type::to_int_type(*_M_in_cur); - if (__bump) - _M_in_cur_move(1); - return __ret; - } - - // Sync internal and external buffers. - // NB: __testget -> __testput as _M_buf_unified here. - bool __testget = _M_in_cur && _M_in_beg < _M_in_cur; - bool __testinit = _M_is_indeterminate(); - if (__testget) - { - if (__testout) - _M_really_overflow(); - else if (_M_in_cur != _M_filepos) - _M_file.seekoff(_M_in_cur - _M_filepos, - ios_base::cur, ios_base::in); - } - - if (__testinit || __testget) - { - const locale __loc = this->getloc(); - const __codecvt_type& __cvt = use_facet<__codecvt_type>(__loc); - - streamsize __elen = 0; - streamsize __ilen = 0; - if (__cvt.always_noconv()) - { - __elen = _M_file.xsgetn(reinterpret_cast<char*>(_M_in_beg), - _M_buf_size); - __ilen = __elen; - } - else - { - char* __buf = static_cast<char*>(__builtin_alloca(_M_buf_size)); - __elen = _M_file.xsgetn(__buf, _M_buf_size); - - const char* __eend; - char_type* __iend; - codecvt_base::result __r; - __r = __cvt.in(_M_state_cur, __buf, - __buf + __elen, __eend, _M_in_beg, - _M_in_beg + _M_buf_size, __iend); - if (__r == codecvt_base::ok) - __ilen = __iend - _M_in_beg; - else - { - // Unwind. - __ilen = 0; - _M_file.seekoff(-__elen, ios_base::cur, ios_base::in); - } - } - - if (0 < __ilen) - { - _M_set_determinate(__ilen); - if (__testout) - _M_out_cur = _M_in_cur; - __ret = traits_type::to_int_type(*_M_in_cur); - if (__bump) - _M_in_cur_move(1); - else if (_M_buf_size == 1) - { - // If we are synced with stdio, we have to unget the - // character we just read so that the file pointer - // doesn't move. - _M_file.sys_ungetc(traits_type::to_int_type(*_M_in_cur)); - _M_set_indeterminate(); - } - } - } - } - _M_last_overflowed = false; - return __ret; - } -#endif -} // namespace std |
