DefinitionThe function bind_4 is used to bind the fourth
argument of a functor to some specific value. The result is a
functor that takes one argument less and calls the original functor
where the fourth argument is set to the bound value.
template < class F, class A >
typename Bind< F, A, 4 >::Type
bind_4 ( F f, A a)
returns a functor
equivalent to f, but where the fourth argument is bound
(fixed) to a.