Re: Should this work?

[Jacob Carlborg]

On 1/30/10 14:06, bobef wrote:
I get these errors DMD 1.055:
(void(char[] _param_0))()
bug.d(2): Error: expected 1 function arguments, not 0
(void(char[] _param_0))()
bug.d(15): Error: template instance bug.Foo!(a) error instantiating

//code----------------------------------------------------------------------------------------------

void Foo(alias X)() {
        pragma(msg,typeof(X).stringof);
}

class A {
        void a(char[]) {
        }

        void b() {
        }
}

void main() {

        Foo!(A.a)(); //doesnt work
        Foo!(A.b)(); //works

}

//end of code 
----------------------------------------------------------------------

Since "a" is a method and when you do "typeof(X)" it tries to call the 
method but since it takes one parameter it fails. "b" doesn't fail 
because it doesn't take any parameters. This is all because of the 
optional parentheses in function calls. Change to: "typeof(&X)".