Re: Label handling overhaul (C front end only)

["Zack Weinberg" <zack at codesourcery dot com>]

Gabriel Dos Reis <gdr@integrable-solutions.net> writes:

> "Zack Weinberg" <zack@codesourcery.com> writes:
>
> [...]
>
> | +The local label feature is useful for complex macros.  If a macro
> | +contains nested loops, a @code{goto} can be useful for breaking out of
> | +them.  However, an ordinary label whose scope is the whole function
> | +cannot be used: if the macro can be expanded several times in one
> | +function, the label will be multiply defined in that function.  A
> | +local label avoids this problem.  For example:
>
> I reiterate objections to this invention.

You're welcome to submit a patch to get rid of this extension
entirely.  I would like to point out that my change makes the
C front end consistent with the C++ front end.

zw