char_traits.h

Introduction

This is an internal header file, included by other library headers. You should not attempt to use it directly.

Typedefs

template <class _CharT> struct _Char_types { 
    typedef unsigned long int_type; 
    typedef std::streampos pos_type; 
    typedef std::streamoff off_type; 
    typedef std::mbstate_t state_type; 
};  

Discussion

@brief Mapping from character type to associated types.

@note This is an implementation class for the generic version of char_traits. It defines int_type, off_type, pos_type, and state_type. By default these are unsigned long, streamoff, streampos, and mbstate_t. Users who need a different set of types, but who don't need to change the definitions of any function defined in char_traits, can specialize __gnu_cxx::_Char_types * while leaving __gnu_cxx::char_traits alone.