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Re: [Bug c++/25845] want optional warning for non-constant declarations that could be constant
- From: Andrew Pinski <pinskia at physics dot uc dot edu>
- To: gcc-bugzilla at gcc dot gnu dot org
- Cc: gcc-bugs at gcc dot gnu dot org
- Date: Wed, 18 Jan 2006 14:33:18 -0500 (EST)
- Subject: Re: [Bug c++/25845] want optional warning for non-constant declarations that could be constant
> > int f(const int *a, int *b)
> > {
> > *b = 1;
> > return *a;
> > }
> >
> > a and b can alias and there is no way around that at all because that is
> > what the C++ standard says.
>
> In this case the compiler should warn because a could be declared "const int *
> const" and b could be declared "int * const".
That still does not change the fact that a could point to the same location as
b is pointing too.
-- Pinski