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Diffstat (limited to 'libstdc++/include/std/std_iosfwd.h')
| -rw-r--r-- | libstdc++/include/std/std_iosfwd.h | 168 |
1 files changed, 168 insertions, 0 deletions
diff --git a/libstdc++/include/std/std_iosfwd.h b/libstdc++/include/std/std_iosfwd.h new file mode 100644 index 0000000..a4d0c3f --- /dev/null +++ b/libstdc++/include/std/std_iosfwd.h @@ -0,0 +1,168 @@ +// Forwarding declarations -*- C++ -*- + +// Copyright (C) 1997, 1998, 1999, 2001, 2002, 2003, 2005 +// 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, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, +// 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. + +/** @file 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/c++locale.h> +#include <bits/c++io.h> +#include <cctype> // For isspace, etc. +#include <bits/stringfwd.h> // For string forward declarations. +#include <bits/postypes.h> +#include <bits/functexcept.h> + +_GLIBCXX_BEGIN_NAMESPACE(std) + + 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; + + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // Not included. (??? Apparently no LWG number?) + class ios_base; + + /** + * @defgroup s27_2_iosfwd I/O Forward Declarations + * + * 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., "class ostream;") is not valid ISO C++. + * + * For more specific declarations, see + * http://gcc.gnu.org/onlinedocs/libstdc++/27_io/howto.html#10 + * + * @{ + */ + typedef basic_ios<char> ios; ///< @isiosfwd + typedef basic_streambuf<char> streambuf; ///< @isiosfwd + typedef basic_istream<char> istream; ///< @isiosfwd + typedef basic_ostream<char> ostream; ///< @isiosfwd + typedef basic_iostream<char> iostream; ///< @isiosfwd + typedef basic_stringbuf<char> stringbuf; ///< @isiosfwd + typedef basic_istringstream<char> istringstream; ///< @isiosfwd + typedef basic_ostringstream<char> ostringstream; ///< @isiosfwd + typedef basic_stringstream<char> stringstream; ///< @isiosfwd + typedef basic_filebuf<char> filebuf; ///< @isiosfwd + typedef basic_ifstream<char> ifstream; ///< @isiosfwd + typedef basic_ofstream<char> ofstream; ///< @isiosfwd + typedef basic_fstream<char> fstream; ///< @isiosfwd + +#ifdef _GLIBCXX_USE_WCHAR_T + typedef basic_ios<wchar_t> wios; ///< @isiosfwd + typedef basic_streambuf<wchar_t> wstreambuf; ///< @isiosfwd + typedef basic_istream<wchar_t> wistream; ///< @isiosfwd + typedef basic_ostream<wchar_t> wostream; ///< @isiosfwd + typedef basic_iostream<wchar_t> wiostream; ///< @isiosfwd + typedef basic_stringbuf<wchar_t> wstringbuf; ///< @isiosfwd + typedef basic_istringstream<wchar_t> wistringstream; ///< @isiosfwd + typedef basic_ostringstream<wchar_t> wostringstream; ///< @isiosfwd + typedef basic_stringstream<wchar_t> wstringstream; ///< @isiosfwd + typedef basic_filebuf<wchar_t> wfilebuf; ///< @isiosfwd + typedef basic_ifstream<wchar_t> wifstream; ///< @isiosfwd + typedef basic_ofstream<wchar_t> wofstream; ///< @isiosfwd + typedef basic_fstream<wchar_t> wfstream; ///< @isiosfwd +#endif + /** @} */ + +_GLIBCXX_END_NAMESPACE + +#endif /* _GLIBCXX_IOSFWD */ |
