27 Input/output library [input.output]

The header <sstream> defines four class templates and eight types that associate stream buffers with objects of class basic_string, as described in [string.classes].

Header <sstream> synopsis

namespace std {
  template <class charT, class traits = char_traits<charT>,
        class Allocator = allocator<charT> >
    class basic_stringbuf;

  typedef basic_stringbuf<char>     stringbuf;
  typedef basic_stringbuf<wchar_t> wstringbuf;

  template <class charT, class traits = char_traits<charT>,
        class Allocator = allocator<charT> >
    class basic_istringstream;

  typedef basic_istringstream<char>     istringstream;
  typedef basic_istringstream<wchar_t> wistringstream;

  template <class charT, class traits = char_traits<charT>,
        class Allocator = allocator<charT> >
    class basic_ostringstream;
  typedef basic_ostringstream<char>     ostringstream;
  typedef basic_ostringstream<wchar_t> wostringstream;

  template <class charT, class traits = char_traits<charT>,
        class Allocator = allocator<charT> >
    class basic_stringstream;
  typedef basic_stringstream<char>     stringstream;
  typedef basic_stringstream<wchar_t> wstringstream;
}