<istream>

Library:  Input/output

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The header <istream> is part of the Input/output library of the C++ Standard Library. It defines the class templates basic_istream and basic_iostream.

namespace std {
  template <class charT, class traits = char_traits<charT> >
  class basic_istream;
  typedef basic_istream<char>     istream;
  typedef basic_istream<wchar_t> wistream;

  template <class charT, class traits = char_traits<charT> >
  class basic_iostream;
  typedef basic_iostream<char>    iostream;
  typedef basic_iostream<wchar_t> wiostream;

  template <class charT, class traits>
  basic_istream<charT, traits>& ws(basic_istream<charT,
                                   traits>&);
}

basic_istream, basic_iostream

ISO/IEC 14882:1998 -- International Standard for Information Systems --Programming Language C++, Section 27.6.1