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| // <iosfwd> Forward declarations -*- C++ -*- |
| |
| // Copyright (C) 1997-2015 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 |
| * 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 */ |