libstdc++-v3/include/bits/std_iosfwd.h

   1 // Forwarding declarations -*- C++ -*-
   2
   3 // Copyright (C) 1997, 1998, 1999, 2001 Free Software Foundation, Inc.
   4 //
   5 // This file is part of the GNU ISO C++ Library.  This library is free
   6 // software; you can redistribute it and/or modify it under the
   7 // terms of the GNU General Public License as published by the
   8 // Free Software Foundation; either version 2, or (at your option)
   9 // any later version.
  10
  11 // This library is distributed in the hope that it will be useful,
  12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 // GNU General Public License for more details.
  15
  16 // You should have received a copy of the GNU General Public License along
  17 // with this library; see the file COPYING.  If not, write to the Free
  18 // Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
  19 // USA.
  20
  21 // As a special exception, you may use this file as part of a free software
  22 // library without restriction.  Specifically, if other files instantiate
  23 // templates or use macros or inline functions from this file, or you compile
  24 // this file and link it with other files to produce an executable, this
  25 // file does not by itself cause the resulting executable to be covered by
  26 // the GNU General Public License.  This exception does not however
  27 // invalidate any other reasons why the executable file might be covered by
  28 // the GNU General Public License.
  29
  30 //
  31 // ISO C++ 14882: 27.2  Forward declarations
  32 //
  33
  34 #ifndef _CPP_IOSFWD
  35 #define _CPP_IOSFWD 1
  36
  37 #include <bits/c++config.h>
  38 #include <bits/std_cwchar.h> // For mbstate_t
  39 #include <bits/stringfwd.h> // For string forward declarations.
  40 #include <bits/functexcept.h>
  41
  42 namespace std
  43 {
  44   // Forward declarations
  45   template<> class char_traits<char>;
  46 #ifdef _GLIBCPP_USE_WCHAR_T
  47   template<> class char_traits<wchar_t>;
  48 #endif
  49
  50   template<typename _CharT, typename _Traits = char_traits<_CharT> >
  51     class basic_ios;
  52
  53   template<typename _CharT, typename _Traits = char_traits<_CharT> >
  54     class basic_streambuf;
  55
  56   template<typename _CharT, typename _Traits = char_traits<_CharT> >
  57     class basic_istream;
  58
  59   template<typename _CharT, typename _Traits = char_traits<_CharT> >
  60     class basic_ostream;
  61
  62   template<typename _CharT, typename _Traits = char_traits<_CharT> >
  63     class basic_iostream;
  64
  65   template<typename _CharT, typename _Traits = char_traits<_CharT>,
  66             typename _Alloc = allocator<_CharT> >
  67     class basic_stringbuf;
  68
  69   template<typename _CharT, typename _Traits = char_traits<_CharT>,
  70            typename _Alloc = allocator<_CharT> >
  71     class basic_istringstream;
  72
  73   template<typename _CharT, typename _Traits = char_traits<_CharT>,
  74            typename _Alloc = allocator<_CharT> >
  75     class basic_ostringstream;
  76
  77   template<typename _CharT, typename _Traits = char_traits<_CharT>,
  78            typename _Alloc = allocator<_CharT> >
  79     class basic_stringstream;
  80
  81   template<typename _CharT, typename _Traits = char_traits<_CharT> >
  82     class basic_filebuf;
  83
  84   template<typename _CharT, typename _Traits = char_traits<_CharT> >
  85     class basic_ifstream;
  86
  87   template<typename _CharT, typename _Traits = char_traits<_CharT> >
  88     class basic_ofstream;
  89
  90   template<typename _CharT, typename _Traits = char_traits<_CharT> >
  91     class basic_fstream;
  92
  93   template<typename _CharT, typename _Traits = char_traits<_CharT> >
  94     class istreambuf_iterator;
  95
  96   template<typename _CharT, typename _Traits = char_traits<_CharT> >
  97     class ostreambuf_iterator;
  98
  99 #ifdef _GLIBCPP_RESOLVE_LIB_DEFECTS
 100   // Not included.
 101   class ios_base;
 102 #endif
 103
 104   template<class _State> struct fpos;
 105 #ifdef _GLIBCPP_RESOLVE_LIB_DEFECTS
 106   // Can't have self-recursive types for streampos.
 107   // 21.1.3.1 char_traits sets size_type to streampos
 108   // 27.4.1
 109   // And here, where streampos is typedefed to fpos<traits::state_type>
 110   typedef fpos<mbstate_t>               streampos;
 111 #  ifdef _GLIBCPP_USE_WCHAR_T
 112   typedef fpos<mbstate_t>               wstreampos;
 113 #  endif
 114 #endif
 115
 116   typedef basic_ios<char>               ios;
 117   typedef basic_streambuf<char>         streambuf;
 118   typedef basic_istream<char>           istream;
 119   typedef basic_ostream<char>           ostream;
 120   typedef basic_iostream<char>          iostream;
 121   typedef basic_stringbuf<char>         stringbuf;
 122   typedef basic_istringstream<char>     istringstream;
 123   typedef basic_ostringstream<char>     ostringstream;
 124   typedef basic_stringstream<char>      stringstream;
 125   typedef basic_filebuf<char>           filebuf;
 126   typedef basic_ifstream<char>          ifstream;
 127   typedef basic_ofstream<char>          ofstream;
 128   typedef basic_fstream<char>           fstream;
 129
 130 #ifdef _GLIBCPP_USE_WCHAR_T
 131   typedef basic_ios<wchar_t>            wios;
 132   typedef basic_streambuf<wchar_t>      wstreambuf;
 133   typedef basic_istream<wchar_t>        wistream;
 134   typedef basic_ostream<wchar_t>        wostream;
 135   typedef basic_iostream<wchar_t>       wiostream;
 136   typedef basic_stringbuf<wchar_t>      wstringbuf;
 137   typedef basic_istringstream<wchar_t>  wistringstream;
 138   typedef basic_ostringstream<wchar_t>  wostringstream;
 139   typedef basic_stringstream<wchar_t>   wstringstream;
 140   typedef basic_filebuf<wchar_t>        wfilebuf;
 141   typedef basic_ifstream<wchar_t>       wifstream;
 142   typedef basic_ofstream<wchar_t>       wofstream;
 143   typedef basic_fstream<wchar_t>        wfstream;
 144 #endif
 145 } // namespace std
 146
 147 #endif  // _CPP_IOSFWD