transform

transform is an operation that starts the given sender, and upon completion applies the functor to it's return value.

Prototype

template <typename Sender, typename F>
sender transform(Sender ds, F f);

Requirements

Sender is a sender and F is a functor that accepts the return value of the sender as an argument.

Arguments

ds - the sender whose result value should be transformed.
f - the functor to use.

Return value

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

Examples

auto coro = [] () -> async::result<int> {
	co_return 5;
};

std::cout << async::run(async::transform(coro(), [] (int i) { return i * 2; }) << std::endl;

Output: