_funcbase.h

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// -*- C++ -*-
 
#ifndef _RWSTD_RW_FUNCBASE_H_INCLUDED
#define _RWSTD_RW_FUNCBASE_H_INCLUDED
 
#ifndef _RWSTD_RW_DEFS_H_INCLUDED
#  include <rw/_defs.h>
#endif   // _RWSTD_RW_DEFS_H_INCLUDED
 
 
_RWSTD_NAMESPACE (std) { 
 
 
// 20.3.1 - Base
template <class _Arg, class _Result>
struct unary_function
{
    typedef _Arg    argument_type;
    typedef _Result result_type;
};
 
 
#define _RWSTD_UNARY_FUNCTION_TYPES(T, U)                                    \
  typedef typename _STD::unary_function<T, U>::argument_type argument_type; \
  typedef typename _STD::unary_function<T, U>::result_type   result_type
 
 
template <class _Arg1, class _Arg2, class _Result>
struct binary_function
{
    typedef _Arg1   first_argument_type;
    typedef _Arg2   second_argument_type;
    typedef _Result result_type;
};
 
 
#define _RWSTD_BINARY_FUNCTION_TYPES(T, U, V)                              \
  typedef typename _STD::binary_function<T, U, V>::second_argument_type   \
          second_argument_type;                                            \
  typedef typename _STD::binary_function<T, U, V>::first_argument_type    \
          first_argument_type;                                             \
  typedef typename _STD::binary_function<T, U, V>::result_type            \
          result_type
 
 
// 20.3.3, p5
template <class _TypeT>
struct less: binary_function<_TypeT, _TypeT, bool>
{
    _RWSTD_BINARY_FUNCTION_TYPES (_TypeT, _TypeT, bool);
 
    result_type operator() (const first_argument_type  &__x,
                            const second_argument_type &__y) const {
        return __x < __y;
    }
};
 
 
}   // namespace std
 
 
#endif   // _RWSTD_RW_FUNCBASE_H_INCLUDED