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authorbkoz <bkoz@138bc75d-0d04-0410-961f-82ee72b054a4>2000-10-05 11:27:02 +0000
committerbkoz <bkoz@138bc75d-0d04-0410-961f-82ee72b054a4>2000-10-05 11:27:02 +0000
commit1d487acac02f71846ad17cadad3e4cb1cca9f799 (patch)
treebc187d782ab1e9dceb01b0464aef31982b570007 /libstdc++-v3/include/bits/sstream.tcc
parent9abe66a77ccab7e9ed4178b9840186fefacf36ff (diff)
downloadgcc-1d487acac02f71846ad17cadad3e4cb1cca9f799.tar.gz
2000-10-05 Benjamin Kosnik <bkoz@cygnus.com>
* include: New directory. * include/backward: New directory. * include/bits: New directory. * include/ext: New directory. * include/std: New directory. * include/*/*: Populate. * src/complex.cc: Adjust include of mathconf. * mkc++config (BASE_H): Add include. * src/Makefile.am: Support for topleve sources include directory. (INCLUDES): Add LIBMATH_INCLUDE. * src/Makefile.in: Regenerate. * math/Makefile.am (INCLUDES): Append /include. * math/Makefile.in: Regenerate. * libio/Makefile.am (INCLUDES): Add glibcpp_includedir. * libio/Makefile.in: Regenerate. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@36723 138bc75d-0d04-0410-961f-82ee72b054a4
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diff --git a/libstdc++-v3/include/bits/sstream.tcc b/libstdc++-v3/include/bits/sstream.tcc
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+// String based streams -*- C++ -*-
+
+// Copyright (C) 1997-1999 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: 27.7 String-based streams
+//
+
+#ifndef _CPP_BITS_SSTREAM_TCC
+#define _CPP_BITS_SSTREAM_TCC 1
+
+#include <bits/std_sstream.h>
+
+namespace std {
+
+ template <class _CharT, class _Traits, class _Alloc>
+ basic_stringbuf<_CharT, _Traits, _Alloc>::int_type
+ basic_stringbuf<_CharT, _Traits, _Alloc>::
+ pbackfail(int_type __c)
+ {
+ int_type __ret = traits_type::eof();
+ bool __testeof = traits_type::eq_int_type(__c, traits_type::eof());
+ bool __testpos = _M_in_cur && _M_in_beg < _M_in_cur;
+
+ // Try to put back __c into input sequence in one of three ways.
+ // Order these tests done in is unspecified by the standard.
+ if (__testpos)
+ {
+ if (traits_type::eq(traits_type::to_char_type(__c), this->gptr()[-1])
+ && !__testeof)
+ {
+ --_M_in_cur;
+ __ret = __c;
+ }
+ else if (!__testeof)
+ {
+ --_M_in_cur;
+ *_M_in_cur = traits_type::to_char_type(__c);
+ __ret = __c;
+ }
+ else if (__testeof)
+ {
+ --_M_in_cur;
+ __ret = traits_type::not_eof(__c);
+ }
+ }
+ return __ret;
+ }
+
+ template <class _CharT, class _Traits, class _Alloc>
+ basic_stringbuf<_CharT, _Traits, _Alloc>::int_type
+ basic_stringbuf<_CharT, _Traits, _Alloc>::
+ overflow(int_type __c)
+ {
+ int_type __ret = traits_type::eof();
+ bool __testeof = traits_type::eq_int_type(__c, __ret);
+ bool __testwrite = _M_out_cur < _M_buf + _M_buf_size;
+ bool __testout = _M_mode & ios_base::out;
+
+ // Try to append __c into output sequence in one of two ways.
+ // Order these tests done in is unspecified by the standard.
+ if (__testout)
+ {
+ if (!__testeof)
+ {
+ __size_type __len = max(_M_buf_size, _M_buf_size_opt);
+ __len *= 2;
+
+ if (__testwrite)
+ __ret = this->sputc(__c);
+ else if (__len <= _M_string.max_size())
+ {
+ // Force-allocate, re-sync.
+ _M_string = this->str();
+ _M_string.reserve(__len);
+ _M_buf_size = static_cast<int_type>(__len);
+ _M_really_sync(_M_in_cur - _M_in_beg,
+ _M_out_cur - _M_out_beg);
+ *_M_out_cur = traits_type::to_char_type(__c);
+ _M_out_cur_move(1);
+ __ret = __c;
+ }
+ }
+ else
+ __ret = traits_type::not_eof(__c);
+ }
+ return __ret;
+ }
+
+ template <class _CharT, class _Traits, class _Alloc>
+ basic_stringbuf<_CharT, _Traits, _Alloc>::pos_type
+ basic_stringbuf<_CharT, _Traits, _Alloc>::
+ seekoff(off_type __off, ios_base::seekdir __way, ios_base::openmode __mode)
+ {
+ pos_type __ret = pos_type(off_type(-1));
+ bool __testin = __mode & ios_base::in && _M_mode & ios_base::in;
+ bool __testout = __mode & ios_base::out && _M_mode & ios_base::out;
+ bool __testboth = __testin && __testout && __way != ios_base::cur;
+
+ if (_M_buf_size && ((__testin != __testout) || __testboth))
+ {
+ char_type* __beg = _M_buf;
+ char_type* __curi = NULL;
+ char_type* __curo = NULL;
+ char_type* __endi = NULL;
+ char_type* __endo = NULL;
+
+ if (__testin)
+ {
+ __curi = this->gptr();
+ __endi = this->egptr();
+ }
+ if (__testout)
+ {
+ __curo = this->pptr();
+ __endo = this->epptr();
+ }
+
+ off_type __newoffi = 0;
+ off_type __newoffo = 0;
+ if (__way == ios_base::cur)
+ {
+ __newoffi = __curi - __beg;
+ __newoffo = __curo - __beg;
+ }
+ else if (__way == ios_base::end)
+ {
+ __newoffi = __endi - __beg;
+ __newoffo = __endo - __beg;
+ }
+
+ if (__testin
+ && __newoffi + __off >= 0 && __endi - __beg >= __newoffi + __off)
+ {
+ _M_in_cur = __beg + __newoffi + __off;
+ __ret = pos_type(__newoffi);
+ }
+ if (__testout
+ && __newoffo + __off >= 0 && __endo - __beg >= __newoffo + __off)
+ {
+ _M_out_cur_move(__newoffo + __off - (_M_out_cur - __beg));
+ __ret = pos_type(__newoffo);
+ }
+ }
+ return __ret;
+ }
+
+ template <class _CharT, class _Traits, class _Alloc>
+ basic_stringbuf<_CharT, _Traits, _Alloc>::pos_type
+ basic_stringbuf<_CharT, _Traits, _Alloc>::
+ seekpos(pos_type __sp, ios_base::openmode __mode)
+ {
+ pos_type __ret = pos_type(off_type(-1));
+ off_type __pos = __sp._M_position();
+ char_type* __beg = NULL;
+ char_type* __end = NULL;
+ bool __testin = __mode & ios_base::in && _M_mode & ios_base::in;
+ bool __testout = __mode & ios_base::out && _M_mode & ios_base::out;
+
+ if (__testin)
+ {
+ __beg = this->eback();
+ __end = this->egptr();
+ }
+ if (__testout)
+ {
+ __beg = this->pbase();
+ __end = _M_buf + _M_buf_size;
+ }
+
+ if (0 <= __pos && __pos <= __end - __beg)
+ {
+ // Need to set both of these if applicable
+ if (__testin)
+ _M_in_cur = _M_in_beg + __pos;
+ if (__testout)
+ _M_out_cur_move((__pos) - (_M_out_cur - __beg));
+ __ret = pos_type(off_type(__pos));
+ }
+
+ return __ret;
+ }
+
+} // namespace std
+
+#endif /* _CPP_BITS_SSTREAM_TCC */
+
+
+
+
+
+
+
+
+