Transitive const sucks

[Mike Capp]

James Dennett Wrote:

> Well, in C++ you'd be fine, but in D I thought the behavior
> if you modified something after casting away const was
> undefined, so you're out of luck.  (Not that you'd need
> to cast away const for this in C++.)

You'll hit undefined behavior in C++ as well if the data being modified (via a const_cast) was originally declared as const. Compilers can (and some PPC compilers did) put such data in read-only memory, and even if they don't they tend to assume "really, truly const" and optimize accordingly. Hours of fun for all the family.

cheers
Mike