Jeffrey A Law - Re: -Wuninitialized issues (original) (raw)

This is the mail archive of the gcc@gcc.gnu.orgmailing list for the GCC project.

• From: Jeffrey A Law
• To: "Kaveh R. Ghazi"
• Cc: pinskia at physics dot uc dot edu, dnovillo at redhat dot com, gcc at gcc dot gnu dot org, mark at codesourcery dot com
• Date: Wed, 02 Nov 2005 18:47:10 -0700
• Subject: Re: -Wuninitialized issues
• References: <200511030052.jA30qAY8005364@earth.phy.uc.edu> <200511030135.jA31Z0CX023166@caipclassic.rutgers.edu>
• Reply-to: law at redhat dot com

On Wed, 2005-11-02 at 20:35 -0500, Kaveh R. Ghazi wrote:

Have another option to detect variables which are set but their values are not used (this was in one of the -Wuninitialized bugs and has been asked before). The EDG front-end implements this option. Andrew Pinski

The sgi compiler detects this also. I'd really like gcc to have it, but it seems to be an orthogonal project. I'd be real curious to know how they did this. Particularly since it plays into a lot of the same questions. OK, not curious enough to go look at their code myself :-)

For example, if the only use was inside an unreachable hunk of code, does that count as a use or not?

jeff

• Follow-Ups:
  • Re: -Wuninitialized issues
    * From: Mark Mitchell
• References:
  • Re: -Wuninitialized issues
    * From: Andrew Pinski
  • Re: -Wuninitialized issues
    * From: Kaveh R. Ghazi