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* [Bug c/23193] New: useless comparison warning
@ 2005-08-02  6:12 phython at gcc dot gnu dot org
  2005-08-02  6:14 ` [Bug c/23193] " pinskia at gcc dot gnu dot org
  0 siblings, 1 reply; 2+ messages in thread
From: phython at gcc dot gnu dot org @ 2005-08-02  6:12 UTC (permalink / raw)
  To: gcc-bugs

GCC should probably warn about useless comparison.
e.g.
#include <stdlib.h>

extern int *bar (int *);

int * foo (int a, int *c, int *b) {
        int *ret = NULL;
        if (a)
          ret = c;
        else
          ret == bar (b);

        return ret;
}

-- 
           Summary: useless comparison warning
           Product: gcc
           Version: 4.0.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: phython at gcc dot gnu dot org
                CC: gcc-bugs at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23193


^ permalink raw reply	[flat|nested] 2+ messages in thread
* [Bug c/23193] useless comparison warning
  2005-08-02  6:12 [Bug c/23193] New: useless comparison warning phython at gcc dot gnu dot org
@ 2005-08-02  6:14 ` pinskia at gcc dot gnu dot org
  0 siblings, 0 replies; 2+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2005-08-02  6:14 UTC (permalink / raw)
  To: gcc-bugs


------- Additional Comments From pinskia at gcc dot gnu dot org  2005-08-02 06:14 -------


*** This bug has been marked as a duplicate of 23113 ***

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|                            |DUPLICATE


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23193


^ permalink raw reply	[flat|nested] 2+ messages in thread
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2005-08-02  6:12 [Bug c/23193] New: useless comparison warning phython at gcc dot gnu dot org
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