Function pointer argument to function template

[Tom S]

Hey there :)

I came up with this:

----

import std.stdio;

template Deref(T) {
         alias typeof(*T) Deref;
}

template RetType(T) {
         static if (is(Deref!(T) U == function)) {
                 alias U RetType;
         } else static assert (false);
}

template Bar(T, U=RetType!(T)) {
         U Bar(T t) {
                 writefln(typeid(U));

                 // do something :P
                 return U.init;
         }
}


cfloat func(int a, float b) {
         return 1.f + 0i;
}


void main() {
         writefln(Bar(&func));
}


--
Tomasz Stachowiak  /+ a.k.a. h3r3tic +/