c/4412: possible warning of logic errors not given

[Padraig@linux.ie]

>Number:         4412
>Category:       c
>Synopsis:       possible warning of logic errors not given
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Thu Sep 27 08:36:00 PDT 2001
>Closed-Date:
>Last-Modified:
>Originator:     Padraig@linux.ie
>Release:        2.96 20000731
>Organization:
>Environment:
i386-redhat-linux
>Description:
Basically if I have:
if (var!=const1 || var!=const2)
   printf("This will always happen");
I think you should get a warning when gcc -Wall used.
Perhaps you could handle other logic inconsistencies
also if you can think of any,
>How-To-Repeat:

>Fix:

>Release-Note:
>Audit-Trail:
>Unformatted:
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