June 21, 2014
Does enum have any effect on functions?

Is this:

mixin (Constant!("ln2"));
package enum T ln2(T)(Context context) {
	return log(T.TWO, context, false);
}

different from this:

mixin (Constant!("ln2"));
package /*enum*/ T ln2(T)(Context context) {
	return log(T.TWO, context, false);
}

The spec says that enums are used to declare constants. I'm not sure what it means for a function to be constant. My guess would be that the value of the function is CTFE'd and that value is stored as if it were a manifest constant, but that's not what happens. The enum functions operate exactly like the non-enum functions.

So either enum functions are different in some way or they're not. If they are different that should be in the spec. If not, enum before a function declaration should not be allowed.

Paul
June 21, 2014
On Saturday, June 21, 2014, Paul D Anderson via Digitalmars-d-learn < digitalmars-d-learn@puremagic.com> wrote:
> Does enum have any effect on functions?

I think that's just a parser bug.