invocable

invocable is an operation that executes the given functor and completes inline with the value returned by the functor.

Prototype

template <typename F>
sender invocable(F f);

Requirements

F is a functor that takes no arguments.

Arguments

• f - the functor to execute.

Return value

This function returns a sender of unspecified type. This sender returns the value returned by the functor.

Examples

auto fn = [] { return 1; };
std::cout << async::run(async::invocable(fn)) << std::endl;

Output:

1