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Diffstat (limited to 'gcc-4.4.3/libstdc++-v3/include/bits/ostream_insert.h')
| -rw-r--r-- | gcc-4.4.3/libstdc++-v3/include/bits/ostream_insert.h | 127 |
1 files changed, 127 insertions, 0 deletions
diff --git a/gcc-4.4.3/libstdc++-v3/include/bits/ostream_insert.h b/gcc-4.4.3/libstdc++-v3/include/bits/ostream_insert.h new file mode 100644 index 000000000..e0017ee7c --- /dev/null +++ b/gcc-4.4.3/libstdc++-v3/include/bits/ostream_insert.h @@ -0,0 +1,127 @@ +// Helpers for ostream inserters -*- C++ -*- + +// Copyright (C) 2007, 2008, 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 ostream_insert.h + * This is an internal header file, included by other library headers. + * You should not attempt to use it directly. + */ + +#ifndef _OSTREAM_INSERT_H +#define _OSTREAM_INSERT_H 1 + +#pragma GCC system_header + +#include <iosfwd> +#include <cxxabi-forced.h> + +_GLIBCXX_BEGIN_NAMESPACE(std) + + template<typename _CharT, typename _Traits> + inline void + __ostream_write(basic_ostream<_CharT, _Traits>& __out, + const _CharT* __s, streamsize __n) + { + typedef basic_ostream<_CharT, _Traits> __ostream_type; + typedef typename __ostream_type::ios_base __ios_base; + + const streamsize __put = __out.rdbuf()->sputn(__s, __n); + if (__put != __n) + __out.setstate(__ios_base::badbit); + } + + template<typename _CharT, typename _Traits> + inline void + __ostream_fill(basic_ostream<_CharT, _Traits>& __out, streamsize __n) + { + typedef basic_ostream<_CharT, _Traits> __ostream_type; + typedef typename __ostream_type::ios_base __ios_base; + + const _CharT __c = __out.fill(); + for (; __n > 0; --__n) + { + const typename _Traits::int_type __put = __out.rdbuf()->sputc(__c); + if (_Traits::eq_int_type(__put, _Traits::eof())) + { + __out.setstate(__ios_base::badbit); + break; + } + } + } + + template<typename _CharT, typename _Traits> + basic_ostream<_CharT, _Traits>& + __ostream_insert(basic_ostream<_CharT, _Traits>& __out, + const _CharT* __s, streamsize __n) + { + typedef basic_ostream<_CharT, _Traits> __ostream_type; + typedef typename __ostream_type::ios_base __ios_base; + + typename __ostream_type::sentry __cerb(__out); + if (__cerb) + { + __try + { + const streamsize __w = __out.width(); + if (__w > __n) + { + const bool __left = ((__out.flags() + & __ios_base::adjustfield) + == __ios_base::left); + if (!__left) + __ostream_fill(__out, __w - __n); + if (__out.good()) + __ostream_write(__out, __s, __n); + if (__left && __out.good()) + __ostream_fill(__out, __w - __n); + } + else + __ostream_write(__out, __s, __n); + __out.width(0); + } + __catch(__cxxabiv1::__forced_unwind&) + { + __out._M_setstate(__ios_base::badbit); + __throw_exception_again; + } + __catch(...) + { __out._M_setstate(__ios_base::badbit); } + } + return __out; + } + + // 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 ostream& __ostream_insert(ostream&, const char*, streamsize); + +#ifdef _GLIBCXX_USE_WCHAR_T + extern template wostream& __ostream_insert(wostream&, const wchar_t*, + streamsize); +#endif +#endif + +_GLIBCXX_END_NAMESPACE + +#endif /* _OSTREAM_INSERT_H */ |