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Re: free (static_array)
On Tue, 1 Jul 2008, Michael Meissner wrote:
> On Tue, Jul 01, 2008 at 11:50:58AM +0200, Denys Vlasenko wrote:
> > On Tuesday 01 July 2008 09:24, Sajish V wrote:
> > > Thanks for the reply, Denys.
> > > My question was, why doesn't gcc catch it during compilation? It is clear
> > > that we are trying to free a variable from stack. Shouldn't gcc flag an
> > > error for this during compilation?
>
> It could. Nobody has written the code to do so, and as they say patches are
> welcome (assuming you have done the paperwork to legally contribute to GCC).
> Have you filed a feature request via bugzilla so that it can be tracked?
An error is inappropriate; undefined behavior only occurs on execution of
the call to free, not on compilation of the program. A warning would be
fine (as would converting the call to free into an abort).
--
Joseph S. Myers
joseph@codesourcery.com