Re: [gcc-in-cxx] Don't initialize variable to itself

[Ian Lance Taylor]

Andrew Pinski <pinskia@xxxxxxxxx> writes:

> On Wed, Mar 4, 2009 at 8:31 AM, Ian Lance Taylor <iant@xxxxxxxxxx> wrote:
>> I committed this patch to the gcc-in-cxx branch to avoid initializing a
>> variable to itself. ÂThis avoids a warning from the C++ frontend.
>
> int a = a; should really disable the unitialized warning even in the
> C++ front-end.  If it is not then it is a bug.

It's not an uninitialized warning.  It's
   warning: operation on 'alloc' may be undefined
It's being generated by -Wsequence-point.

I haven't looked into why the C++ frontend generates the warning when
the C frontend doesn't.

Ian