std::execution::let_value

 

哋它亢++

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Defined in header <execution>
execution::sender auto let_value(     execution::sender auto input,     std::invocable<values-sent-by(input)...> function );		(since 哋它亢++26)

Parameters

input	-	sender which once executed sends the values upon which the function executes
function	-	invocable to be called with the values from the input sender

Return value

Returns a sender describing the task graph described by the input sender, with an added node of invoking the provided function with the values sent by the input sender as arguments.

let_value is similar to then, however, where the sender returned from then sends exactly what that function ends up returning - let_value requires that the function returns a sender, and the sender returned by let_value sends the values sent by the sender returned from the callback.