| // Stream buffer classes -*- C++ -*- | |
| // Copyright (C) 2004-2026 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/>. | |
| // | |
| // ISO C++ 14882: 27.5 Stream buffers | |
| // | |
| #include <streambuf> | |
| namespace std _GLIBCXX_VISIBILITY(default) | |
| { | |
| _GLIBCXX_BEGIN_NAMESPACE_VERSION | |
| template<> | |
| streamsize | |
| __copy_streambufs_eof(basic_streambuf<char>* __sbin, | |
| basic_streambuf<char>* __sbout, bool& __ineof) | |
| { | |
| typedef basic_streambuf<char>::traits_type traits_type; | |
| streamsize __ret = 0; | |
| __ineof = true; | |
| traits_type::int_type __c = __sbin->sgetc(); | |
| while (!traits_type::eq_int_type(__c, traits_type::eof())) | |
| { | |
| const streamsize __n = __sbin->egptr() - __sbin->gptr(); | |
| if (__n > 1) | |
| { | |
| const streamsize __wrote = __sbout->sputn(__sbin->gptr(), __n); | |
| __sbin->__safe_gbump(__wrote); | |
| __ret += __wrote; | |
| if (__wrote < __n) | |
| { | |
| __ineof = false; | |
| break; | |
| } | |
| __c = __sbin->underflow(); | |
| } | |
| else | |
| { | |
| __c = __sbout->sputc(traits_type::to_char_type(__c)); | |
| if (traits_type::eq_int_type(__c, traits_type::eof())) | |
| { | |
| __ineof = false; | |
| break; | |
| } | |
| ++__ret; | |
| __c = __sbin->snextc(); | |
| } | |
| } | |
| return __ret; | |
| } | |
| #ifdef _GLIBCXX_USE_WCHAR_T | |
| template<> | |
| streamsize | |
| __copy_streambufs_eof(basic_streambuf<wchar_t>* __sbin, | |
| basic_streambuf<wchar_t>* __sbout, bool& __ineof) | |
| { | |
| typedef basic_streambuf<wchar_t>::traits_type traits_type; | |
| streamsize __ret = 0; | |
| __ineof = true; | |
| traits_type::int_type __c = __sbin->sgetc(); | |
| while (!traits_type::eq_int_type(__c, traits_type::eof())) | |
| { | |
| const streamsize __n = __sbin->egptr() - __sbin->gptr(); | |
| if (__n > 1) | |
| { | |
| const streamsize __wrote = __sbout->sputn(__sbin->gptr(), __n); | |
| __sbin->__safe_gbump(__wrote); | |
| __ret += __wrote; | |
| if (__wrote < __n) | |
| { | |
| __ineof = false; | |
| break; | |
| } | |
| __c = __sbin->underflow(); | |
| } | |
| else | |
| { | |
| __c = __sbout->sputc(traits_type::to_char_type(__c)); | |
| if (traits_type::eq_int_type(__c, traits_type::eof())) | |
| { | |
| __ineof = false; | |
| break; | |
| } | |
| ++__ret; | |
| __c = __sbin->snextc(); | |
| } | |
| } | |
| return __ret; | |
| } | |
| #endif | |
| _GLIBCXX_END_NAMESPACE_VERSION | |
| } // namespace |