On Tue, Jul 28, 2009 at 12:09 AM, Don<[email protected]> wrote: >> Walter once claimed that it's useful for automatically generated code. >> Though I'm still not quite sure how. > > Yes. He's recently the claimed the same thing about the comma operator, but > I don't buy that argument. I've never needed to use either of them myself. > (In the case of comma, sure it works as a sequence point when you have: a,b, > return a; but it doesn't work for a,b, return b; which is 50% of the cases. > I think it's a fallacious argument). Interestingly CommaExpression doesn't > seem to be defined anywhere in the D spec.
You meant to say it doesn't work for a,b, return a; right? And I don't think that would be 50% of the cases. a,b,return b seems much more common. But either way the argument is ridiculous. It doesn't need to be as basic an operator as a single comma just for the sake of making code generation easier. --bb
