Problem with ReturnType
janderson
askme at me.com
Fri Apr 4 00:16:09 PDT 2008
bearophile wrote:
> After an 1+ hours long bug hunt, I have reduced my code to the following one.
> ReturnType below is a reduced version of std.traits.ReturnType:
>
> template ReturnType(T) {
> static if (is(T R == return))
> alias R ReturnType;
> }
>
> void bar(T)(T f) { return f(); }
There is no return type. alias Return is returning an int.
>
> void main() {
> alias ReturnType!( typeof( (int x){ return x; } ) ) TInt; //problem
> bar((int n=1) { return 2; });
> }
>
> The output:
> test.d(6): Error: expected 1 arguments, not 0
> test.d(10): template instance test.bar!(int delegate(int x)) error instantiating
>
> Is this a bug of DMD/Phobos (I am using 1.028)?
>
> Bye,
> bearophile
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