mem_fun1_ref_t

A function adaptor for a member to function reference object.

  template<class S, class T, class A>
  class mem_fun1_ref_t : public binary_function<T,A, S>
  explicit mem_fun1_ref_t(S (T::*p)(A));  

The constructor for mem_fun1_ref_t calls the member function that it is initialized with a given a reference argument and an additional argument of the appropriate type.