This is the mail archive of the
gcc-patches@gcc.gnu.org
mailing list for the GCC project.
Re: Patch for various warnings in gcc
- From: "Kaveh R. Ghazi" <ghazi at caip dot rutgers dot edu>
- To: dave at hiauly1 dot hia dot nrc dot ca
- Cc: dave dot anglin at nrc dot ca, gcc-patches at gcc dot gnu dot org, matz at suse dot de
- Date: Thu, 8 Aug 2002 13:53:25 -0400 (EDT)
- Subject: Re: Patch for various warnings in gcc
- References: <200208081557.g78FvRoR015851@hiauly1.hia.nrc.ca>
> From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
>
> > int main()
> > {
> > int a = a;
> >
> > return a;
> > }
>
> I tried it under HP cc (hpux10.20) and VAX Ultrix pcc, with and without "-O".
> All compile without error and execute returning a status of 0, except
> for HP cc at -O:
>
> 507 (hiauly1)dave> cc -o self -O self.c
> cc: line 5: warning 5004: Uninitialized variable "a" in function "main" (5004)
But it still compiled right?
I tried cc on irix6.2 and solaris2 and it worked. So together that
would seem to eliminate my worry about vendor compilers, however I'm
still not thrilled about the potential non-deterministic aspect if a
real uninitialized reference was later introduced.
--
Kaveh R. Ghazi Director of Systems Architecture
ghazi@caip.rutgers.edu Qwest Solutions