NAME¶

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
invoke_r and possibility to specify return type
(C++17) (since C++23)
(C++23) (function template)