std::experimental::ranges::invoke (3) Linux Manual Page

std::experimental::ranges::invoke – std::experimental::ranges::invoke

Synopsis

Defined in header<experimental / ranges / functional>

    template <class F, class... Args>
    (ranges TS)

        std::result_of_t<F && (Args && ...)> invoke(F &&f, Args &&...args);
Invoke the Callable object f with the parameters args, and return the result, as if by return INVOKE(std::forward<F>(f), std::forward<Args>(args)...);
, where INVOKE(f, t1, t2, ..., tN)
is defined as follows:

* if f is a pointer_to_member_function of class T:
      * If std::is_base_of<T, std::decay_t<decltype(t1)>>::value is true, then INVOKE(f, t1, t2, …, tN) is equivalent to (t1.*f)(t2, …, tN)
      * otherwise, INVOKE(f, t1, t2, …, tN) is equivalent to ((*t1).*f)(t2, …, tN).
* otherwise, if N == 1 and f is a pointer_to_data_member of class T:
      * If std::is_base_of<T, std::decay_t<decltype(t1)>>::value is true, then INVOKE(f, t1) is equivalent to t1.*f
      * otherwise, then INVOKE(f, t1) is equivalent to (*t1).*f
* otherwise, INVOKE(f, t1, t2, …, tN) is equivalent to f(t1, t2, …, tN) (that is, f is a FunctionObject)

Parameters

f – Callable object to be invoked
args – arguments to pass to f

See also

invoke invokes any Callable object with given arguments
        (function template)
(C++17)