Re: Retrieve the return type of the current function

[learner via Digitalmars-d-learn]

On Wednesday, 6 May 2020 at 08:04:16 UTC, Jacob Carlborg wrote:

On 2020-05-05 19:11, learner wrote:

On Tuesday, 5 May 2020 at 16:41:06 UTC, Adam D. Ruppe wrote:

typeof(return)

Thank you, that was indeed easy!

Is it possible to retrieve also the caller return type? Something like:

Yes, kind of:

void foo(string caller = __FUNCTION__)()
{
    import std.traits : ReturnType;

    alias R = ReturnType!(mixin(caller));
    static assert(is(R == int));
}

int bar()
{
    foo();
    return 0;
}

Awesome and beautiful, thank you!