diff options
Diffstat (limited to 'i686-linux/include/c++/4.4.3/bits/streambuf.tcc')
| -rw-r--r-- | i686-linux/include/c++/4.4.3/bits/streambuf.tcc | 174 |
1 files changed, 174 insertions, 0 deletions
diff --git a/i686-linux/include/c++/4.4.3/bits/streambuf.tcc b/i686-linux/include/c++/4.4.3/bits/streambuf.tcc new file mode 100644 index 0000000..f3e6ce7 --- /dev/null +++ b/i686-linux/include/c++/4.4.3/bits/streambuf.tcc @@ -0,0 +1,174 @@ +// Stream buffer classes -*- C++ -*- + +// Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, +// 2006, 2009 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 3, 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. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// <http://www.gnu.org/licenses/>. + +/** @file streambuf.tcc + * This is an internal header file, included by other library headers. + * You should not attempt to use it directly. + */ + +// +// ISO C++ 14882: 27.5 Stream buffers +// + +#ifndef _STREAMBUF_TCC +#define _STREAMBUF_TCC 1 + +#pragma GCC system_header + +_GLIBCXX_BEGIN_NAMESPACE(std) + + template<typename _CharT, typename _Traits> + streamsize + basic_streambuf<_CharT, _Traits>:: + xsgetn(char_type* __s, streamsize __n) + { + streamsize __ret = 0; + while (__ret < __n) + { + const streamsize __buf_len = this->egptr() - this->gptr(); + if (__buf_len) + { + const streamsize __remaining = __n - __ret; + const streamsize __len = std::min(__buf_len, __remaining); + traits_type::copy(__s, this->gptr(), __len); + __ret += __len; + __s += __len; + this->gbump(__len); + } + + if (__ret < __n) + { + const int_type __c = this->uflow(); + if (!traits_type::eq_int_type(__c, traits_type::eof())) + { + traits_type::assign(*__s++, traits_type::to_char_type(__c)); + ++__ret; + } + else + break; + } + } + return __ret; + } + + template<typename _CharT, typename _Traits> + streamsize + basic_streambuf<_CharT, _Traits>:: + xsputn(const char_type* __s, streamsize __n) + { + streamsize __ret = 0; + while (__ret < __n) + { + const streamsize __buf_len = this->epptr() - this->pptr(); + if (__buf_len) + { + const streamsize __remaining = __n - __ret; + const streamsize __len = std::min(__buf_len, __remaining); + traits_type::copy(this->pptr(), __s, __len); + __ret += __len; + __s += __len; + this->pbump(__len); + } + + if (__ret < __n) + { + int_type __c = this->overflow(traits_type::to_int_type(*__s)); + if (!traits_type::eq_int_type(__c, traits_type::eof())) + { + ++__ret; + ++__s; + } + else + break; + } + } + return __ret; + } + + // Conceivably, this could be used to implement buffer-to-buffer + // copies, if this was ever desired in an un-ambiguous way by the + // standard. + template<typename _CharT, typename _Traits> + streamsize + __copy_streambufs_eof(basic_streambuf<_CharT, _Traits>* __sbin, + basic_streambuf<_CharT, _Traits>* __sbout, + bool& __ineof) + { + streamsize __ret = 0; + __ineof = true; + typename _Traits::int_type __c = __sbin->sgetc(); + while (!_Traits::eq_int_type(__c, _Traits::eof())) + { + __c = __sbout->sputc(_Traits::to_char_type(__c)); + if (_Traits::eq_int_type(__c, _Traits::eof())) + { + __ineof = false; + break; + } + ++__ret; + __c = __sbin->snextc(); + } + return __ret; + } + + template<typename _CharT, typename _Traits> + inline streamsize + __copy_streambufs(basic_streambuf<_CharT, _Traits>* __sbin, + basic_streambuf<_CharT, _Traits>* __sbout) + { + bool __ineof; + return __copy_streambufs_eof(__sbin, __sbout, __ineof); + } + + // Inhibit implicit instantiations for required instantiations, + // which are defined via explicit instantiations elsewhere. + // NB: This syntax is a GNU extension. +#if _GLIBCXX_EXTERN_TEMPLATE + extern template class basic_streambuf<char>; + extern template + streamsize + __copy_streambufs(basic_streambuf<char>*, + basic_streambuf<char>*); + extern template + streamsize + __copy_streambufs_eof(basic_streambuf<char>*, + basic_streambuf<char>*, bool&); + +#ifdef _GLIBCXX_USE_WCHAR_T + extern template class basic_streambuf<wchar_t>; + extern template + streamsize + __copy_streambufs(basic_streambuf<wchar_t>*, + basic_streambuf<wchar_t>*); + extern template + streamsize + __copy_streambufs_eof(basic_streambuf<wchar_t>*, + basic_streambuf<wchar_t>*, bool&); +#endif +#endif + +_GLIBCXX_END_NAMESPACE + +#endif |