iosfwd
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// <iosfwd> Forward declarations -*- C++ -*-
// Copyright (C) 1997-2018 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 &lt;iosfwd&gt;
* 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
* https://gcc.gnu.org/onlinedocs/libstdc++/manual/io.html#std.io.objects
*
* @{
*/
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;
_GLIBCXX_BEGIN_NAMESPACE_CXX11
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;
_GLIBCXX_END_NAMESPACE_CXX11
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 */
std::fstream
basic_fstream< char > fstream
Class for char mixed input and output file streams.
Definition: iosfwd:168
std::wifstream
basic_ifstream< wchar_t > wifstream
Class for wchar_t input file streams.
Definition: iosfwd:202
std::basic_stringstream
Controlling input and output for std::string.
Definition: iosfwd:108
std::stringstream
basic_stringstream< char > stringstream
Class for char mixed input and output memory streams.
Definition: iosfwd:156
c++config.h
std::wstringstream
basic_stringstream< wchar_t > wstringstream
Class for wchar_t mixed input and output memory streams.
Definition: iosfwd:196
std::basic_ios
Template class basic_ios, virtual base class for all stream classes.
Definition: iosfwd:77
std::wios
basic_ios< wchar_t > wios
Base class for wchar_t streams.
Definition: iosfwd:172
std::wstreambuf
basic_streambuf< wchar_t > wstreambuf
Base class for wchar_t buffers.
Definition: iosfwd:175
std::wofstream
basic_ofstream< wchar_t > wofstream
Class for wchar_t output file streams.
Definition: iosfwd:205
std::basic_ofstream
Controlling output for files.
Definition: fstream:701
std::basic_stringbuf
The actual work of input and output (for std::string).
Definition: iosfwd:96
std::basic_istream
Template class basic_istream.
Definition: iosfwd:83
std::ifstream
basic_ifstream< char > ifstream
Class for char input file streams.
Definition: iosfwd:162
std::streambuf
basic_streambuf< char > streambuf
Base class for char buffers.
Definition: iosfwd:135
std::wistringstream
basic_istringstream< wchar_t > wistringstream
Class for wchar_t input memory streams.
Definition: iosfwd:190
std::ostreambuf_iterator
Provides output iterator semantics for streambufs.
Definition: iosfwd:128
std::basic_ostringstream
Controlling output for std::string.
Definition: iosfwd:104
std::wostream
basic_ostream< wchar_t > wostream
Base class for wchar_t output streams.
Definition: iosfwd:181
std::basic_ifstream
Controlling input for files.
Definition: fstream:476
std::basic_iostream
Template class basic_iostream.
Definition: iosfwd:89
std::ofstream
basic_ofstream< char > ofstream
Class for char output file streams.
Definition: iosfwd:165
std::filebuf
basic_filebuf< char > filebuf
Class for char file buffers.
Definition: iosfwd:159
std::istreambuf_iterator
Provides input iterator semantics for streambufs.
Definition: iosfwd:125
std::wfstream
basic_fstream< wchar_t > wfstream
Class for wchar_t mixed input and output file streams.
Definition: iosfwd:208
stringfwd.h
std::ostream
basic_ostream< char > ostream
Base class for char output streams.
Definition: iosfwd:141
std
ISO C++ entities toplevel namespace is std.
std::istringstream
basic_istringstream< char > istringstream
Class for char input memory streams.
Definition: iosfwd:150
postypes.h
std::wstringbuf
basic_stringbuf< wchar_t > wstringbuf
Class for wchar_t memory buffers.
Definition: iosfwd:187
std::iostream
basic_iostream< char > iostream
Base class for char mixed input and output streams.
Definition: iosfwd:144
std::wiostream
basic_iostream< wchar_t > wiostream
Base class for wchar_t mixed input and output streams.
Definition: iosfwd:184
std::ostringstream
basic_ostringstream< char > ostringstream
Class for char output memory streams.
Definition: iosfwd:153
std::basic_streambuf
The actual work of input and output (interface).
Definition: iosfwd:80
std::wistream
basic_istream< wchar_t > wistream
Base class for wchar_t input streams.
Definition: iosfwd:178
std::stringbuf
basic_stringbuf< char > stringbuf
Class for char memory buffers.
Definition: iosfwd:147
std::wostringstream
basic_ostringstream< wchar_t > wostringstream
Class for wchar_t output memory streams.
Definition: iosfwd:193
std::basic_fstream
Controlling input and output for files.
Definition: fstream:927
std::basic_istringstream
Controlling input for std::string.
Definition: iosfwd:100
std::ios
basic_ios< char > ios
Base class for char streams.
Definition: iosfwd:128
std::wfilebuf
basic_filebuf< wchar_t > wfilebuf
Class for wchar_t file buffers.
Definition: iosfwd:199
std::basic_filebuf
The actual work of input and output (for files).
Definition: fstream:80
std::basic_ostream
Template class basic_ostream.
Definition: iosfwd:86
std::istream
basic_istream< char > istream
Base class for char input streams.
Definition: iosfwd:138