[Boost-users] determining a sensible result type for a function

From: Agoston Bejo (gusz1_at_[hidden])
Date: 2004-12-05 18:45:39

Hi!
Let's consider this function object:

template<typename TLeft, typename TRight>
struct mixed_plus :
 public binary_function<TLeft, TRight, TLeft>
{
 result_type operator()
  (first_argument_type left, second_argument_type right)
 const
 {
  return left + right;
 }
};