Compiler bug ?

[Jesse Phillips]

On Friday, 17 May 2013 at 14:35:35 UTC, Maxim Fomin wrote:
> If it alwalys a bad idea, compiler should not accept such code.

I'm pretty sure the answer is:

Compilers can have different extensions, it would be bad for a 
compiler to reject code which is valid by another compiler.

That said, I don't know of any rules around ignoring these as 
there is for pragma.