D - dynamic_cast only?

[Vladimir Panteleev]

On Sunday, 25 December 2011 at 13:39:15 UTC, Steve Teale wrote:
> The segfault is presumably because Widget does not have a 
> setCurrentColor method, but why is the cast being ignored? Is 
> the compiler optimizing the intermediate cast to void away? I 
> don't find the asm from obj2asm helpful.

I don't understand. Casting a void* to a class bypasses all 
static type checks. This is one of those cases where you "tell 
the compiler that you know what you're doing" - and if you try to 
call a method that wasn't in the original class's vtable, that's 
obviously not true.