Standard C++ LibraryCopyright 1996, Rogue Wave Software, Inc.

NAME

  iosfwd

DESCRIPTION

  The header iosfwd forward declares the input/output library template
  classes and specializes them for wide and tiny characters. It also defines
  the positional types used in class char_traits instantiated on tiny and
  wide characters.

SYNOPSIS

  #include <iosfwd>

  // forward declare the traits class
  template<class charT> struct char_traits;

  // forward declare the positioning class
  template<class stateT> class fpos;

  // forward declare the state class
  class mbstate_t;

  // forward declare the allocator class
  template<class T> class allocator;

  // forward declare the iostreams template classes
  template<class charT,class traits=char_traits<charT>>
     class basic_ios;
  template<class charT,class traits=char_traits<charT>>
     class basic_streambuf;
  template<class charT,class traits=char_traits<charT>>
     class basic_istream;
  template<class charT,class traits=char_traits<charT>>
     class basic_ostream;
  template<class charT,class traits=char_traits<charT>,
          class Allocator = allocator<void> >
     class basic_stringbuf;
  template<class charT,class traits=char_traits<charT>,
          class Allocator = allocator<void> >
     class basic_istringstream;
  template<class charT,class traits=char_traits<charT>,
          class Allocator = allocator<void> >
     class basic_ostringstream;
  template<class charT,class traits=char_traits<charT>>
     class basic_filebuf;
  template<class charT,class traits=char_traits<charT>>
     class basic_ifstream;
  template<class charT,class traits=char_traits<charT>>
     class basic_ofstream;
  template<class charT,class traits=char_traits<charT>>
     class ostreambuf_iterator;
  template<class charT,class traits=char_traits<charT>>
     class istreambuf_iterator;
  template<class charT,class traits=char_traits<charT>>
     class basic_iostream;
  template<class charT,class traits=char_traits<charT>,
          class Allocator = allocator<void> >
     class basic_stringstream;
  template<class charT,class traits=char_traits<charT>>
     class basic_fstream;

  // specializations on tiny characters
  typedef basic_ios<char>              ios;
  typedef basic_streambuf<char>        streambuf;
  typedef basic_istream<char>          istream;
  typedef basic_ostream<char>          ostream;
  typedef basic_stringbuf<char>        stringbuf;
  typedef basic_istringstream<char>    istringstream;
  typedef basic_ostringstream<char>    ostringstream;
  typedef basic_filebuf<char>          filebuf;
  typedef basic_ifstream<char>         ifstream;
  typedef basic_ofstream<char>         ofstream;
  typedef basic_iostream<char>         iostream;
  typedef basic_stringstream<char>     stringstream;
  typedef basic_fstream<char>          fstream;

  // specializations on wide characters
  typedef basic_ios<wchar_t>           wios;
  typedef basic_streambuf<wchar_t>     wstreambuf;
  typedef basic_istream<wchar_t>       wistream;
  typedef basic_ostream<wchar_t>       wostream;
  typedef basic_stringbuf<wchar_t>     wstringbuf;
  typedef basic_istringstream<wchar_t> wistringstream;
  typedef basic_ostringstream<wchar_t> wostringstream;
  typedef basic_filebuf<wchar_t>       wfilebuf;
  typedef basic_ifstream<wchar_t>      wifstream;
  typedef basic_ofstream<wchar_t>      wofstream;
  typedef basic_iostream<wchar_t>      wiostream;
  typedef basic_stringstream<wchar_t>  wstringstream;
  typedef basic_fstream<wchar_t>       wfstream;

  // positional types used by char_traits
  typedef fpos<mbstate_t> streampos;
  typedef fpos<mbstate_t> wstreampos;

  typedef long            streamoff;
  typedef long            wstreamoff;

SEE ALSO

  fpos(3C++std), char_traits(3C++std), basic_ios(3C++std),
  basic_streambuf(3C++std), basic_istream(3C++std), basic_ostream(3C++std),
  basic_iostream(3C++std),

  basic_stringbuf(3C++std), basic_istringstream(3C++std),
  basic_ostringstream(3C++std), basic_stringstream(3C++std),
  basic_filebuf(3C++std), basic_ifstream(3C++std), basic_ofstream(3C++std),
  basic_fstream(3C++std), istreambuf_iterator(3C++std),
  ostreambuf_iterator(3C++std)

  Working Paper for Draft Proposed International Standard for Information
  Systems--Programming Language C++, Section 27.2

STANDARDS CONFORMANCE

  ANSI X3J16/ISO WG21 Joint C++ Committee



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