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Diffstat (limited to 'libstdc++-v3/include/std/iosfwd')
| -rw-r--r-- | libstdc++-v3/include/std/iosfwd | 212 |
1 files changed, 212 insertions, 0 deletions
diff --git a/libstdc++-v3/include/std/iosfwd b/libstdc++-v3/include/std/iosfwd new file mode 100644 index 000000000..8906a1d34 --- /dev/null +++ b/libstdc++-v3/include/std/iosfwd @@ -0,0 +1,212 @@ +// Forwarding declarations -*- C++ -*- + +// Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, +// 2006, 2007, 2009, 2010 +// 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 include/iosfwd + * This is a Standard C++ Library header. + */ + +// +// ISO C++ 14882: 27.2 Forward declarations +// + +#ifndef _GLIBCXX_IOSFWD +#define _GLIBCXX_IOSFWD 1 + +#pragma GCC system_header + +#include <bits/c++config.h> +#include <bits/stringfwd.h> // For string forward declarations. +#include <bits/postypes.h> + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + /** + * @defgroup io I/O + * + * Nearly all of the I/O classes are parameterized on the type of + * characters they read and write. (The major exception is ios_base at + * the top of the hierarchy.) This is a change from pre-Standard + * streams, which were not templates. + * + * For ease of use and compatibility, all of the basic_* I/O-related + * classes are given typedef names for both of the builtin character + * widths (wide and narrow). The typedefs are the same as the + * pre-Standard names, for example: + * + * @code + * typedef basic_ifstream<char> ifstream; + * @endcode + * + * Because properly forward-declaring these classes can be difficult, you + * should not do it yourself. Instead, include the <iosfwd> + * header, which contains only declarations of all the I/O classes as + * well as the typedefs. Trying to forward-declare the typedefs + * themselves (e.g., <code>class ostream;</code>) is not valid ISO C++. + * + * For more specific declarations, see + * http://gcc.gnu.org/onlinedocs/libstdc++/manual/bk01pt11ch24.html + * + * @{ + */ + class ios_base; + + template<typename _CharT, typename _Traits = char_traits<_CharT> > + class basic_ios; + + template<typename _CharT, typename _Traits = char_traits<_CharT> > + class basic_streambuf; + + template<typename _CharT, typename _Traits = char_traits<_CharT> > + class basic_istream; + + template<typename _CharT, typename _Traits = char_traits<_CharT> > + class basic_ostream; + + template<typename _CharT, typename _Traits = char_traits<_CharT> > + class basic_iostream; + + template<typename _CharT, typename _Traits = char_traits<_CharT>, + typename _Alloc = allocator<_CharT> > + class basic_stringbuf; + + template<typename _CharT, typename _Traits = char_traits<_CharT>, + typename _Alloc = allocator<_CharT> > + class basic_istringstream; + + template<typename _CharT, typename _Traits = char_traits<_CharT>, + typename _Alloc = allocator<_CharT> > + class basic_ostringstream; + + template<typename _CharT, typename _Traits = char_traits<_CharT>, + typename _Alloc = allocator<_CharT> > + class basic_stringstream; + + template<typename _CharT, typename _Traits = char_traits<_CharT> > + class basic_filebuf; + + template<typename _CharT, typename _Traits = char_traits<_CharT> > + class basic_ifstream; + + template<typename _CharT, typename _Traits = char_traits<_CharT> > + class basic_ofstream; + + template<typename _CharT, typename _Traits = char_traits<_CharT> > + class basic_fstream; + + template<typename _CharT, typename _Traits = char_traits<_CharT> > + class istreambuf_iterator; + + template<typename _CharT, typename _Traits = char_traits<_CharT> > + class ostreambuf_iterator; + + + /// Base class for @c char streams. + typedef basic_ios<char> ios; + + /// Base class for @c char buffers. + typedef basic_streambuf<char> streambuf; + + /// Base class for @c char input streams. + typedef basic_istream<char> istream; + + /// Base class for @c char output streams. + typedef basic_ostream<char> ostream; + + /// Base class for @c char mixed input and output streams. + typedef basic_iostream<char> iostream; + + /// Class for @c char memory buffers. + typedef basic_stringbuf<char> stringbuf; + + /// Class for @c char input memory streams. + typedef basic_istringstream<char> istringstream; + + /// Class for @c char output memory streams. + typedef basic_ostringstream<char> ostringstream; + + /// Class for @c char mixed input and output memory streams. + typedef basic_stringstream<char> stringstream; + + /// Class for @c char file buffers. + typedef basic_filebuf<char> filebuf; + + /// Class for @c char input file streams. + typedef basic_ifstream<char> ifstream; + + /// Class for @c char output file streams. + typedef basic_ofstream<char> ofstream; + + /// Class for @c char mixed input and output file streams. + typedef basic_fstream<char> fstream; + +#ifdef _GLIBCXX_USE_WCHAR_T + /// Base class for @c wchar_t streams. + typedef basic_ios<wchar_t> wios; + + /// Base class for @c wchar_t buffers. + typedef basic_streambuf<wchar_t> wstreambuf; + + /// Base class for @c wchar_t input streams. + typedef basic_istream<wchar_t> wistream; + + /// Base class for @c wchar_t output streams. + typedef basic_ostream<wchar_t> wostream; + + /// Base class for @c wchar_t mixed input and output streams. + typedef basic_iostream<wchar_t> wiostream; + + /// Class for @c wchar_t memory buffers. + typedef basic_stringbuf<wchar_t> wstringbuf; + + /// Class for @c wchar_t input memory streams. + typedef basic_istringstream<wchar_t> wistringstream; + + /// Class for @c wchar_t output memory streams. + typedef basic_ostringstream<wchar_t> wostringstream; + + /// Class for @c wchar_t mixed input and output memory streams. + typedef basic_stringstream<wchar_t> wstringstream; + + /// Class for @c wchar_t file buffers. + typedef basic_filebuf<wchar_t> wfilebuf; + + /// Class for @c wchar_t input file streams. + typedef basic_ifstream<wchar_t> wifstream; + + /// Class for @c wchar_t output file streams. + typedef basic_ofstream<wchar_t> wofstream; + + /// Class for @c wchar_t mixed input and output file streams. + typedef basic_fstream<wchar_t> wfstream; +#endif + /** @} */ + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace + +#endif /* _GLIBCXX_IOSFWD */ |