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Re: try/finally in GNU C


> 
> On Thu, Jun 15, 2006 at 07:21:03PM -0400, Andrew Pinski wrote:
> > >   while looking into a recent mismatch between GCC-4.x and a C dialect
> > > EH implemented as setjmp/longjmp, I recalled there was a talk about
> > > extending GNU C with __try/__finally construct:  
> > > 
> > >   http://gcc.gnu.org/ml/gcc-patches/2002-11/msg00239.html
> > > 
> > > What happened to that project?  Is it dead for good?
> > 
> > Doesn't the cleanup attribute to a variable do close to the same thing?
> > http://gcc.gnu.org/onlinedocs/gcc/Variable-Attributes.html
> 
> It's not a replacement, because a finally clause, like a C++ catch
> clause, has access to any automatic variable in scope.  You can only
> pass one argument to a cleanup function, so to port a program that
> uses try/finally could require a major rewrite.

Nested functions come in handy here really.

-- Pinski


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