Re: [PATCH] More compile warning fixes for 2.4.0

[Alan Shutko <ats@acm.org>]

Marco Colombo <marco@esi.it> writes:

> But what happens if I delete the stm1 line? We have:
> 
> 	case xxx:
> 		/* fallthrough */
> 	case yyy:
> 		stm2;
> 
> which is wrong. 

AFAIK, that's perfectly correct.  It's only the case where you have a
label at the end of a block (without a statement following it) where
it's an error.

In the grammar, a statement must follow a label, but a
labeled-statement is a type of statement, so you can stack labels as
much as you want, as long as there's a statement somewhere after them.

That is, assuming I'm reading the standard right (ISO/IEC 9899:1990,
Section 6.6, 6.6.1).        

-- 
Alan Shutko <ats@acm.org> - In a variety of flavors!
Programmers do it bit by bit.
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