[Bug c/81453] relational expression involving null pointer not diagnosed with -Wall

2022-01-10 Thread msebor at gcc dot gnu.org via Gcc-bugs 
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81453

Martin Sebor  changed:

   What|Removed |Added

   Keywords||patch

--- Comment #4 from Martin Sebor  ---
I'm not sure pr103945 is a duplicate of this feature request: this one is about
relational expressions involving a null pointer, while pr103945 is about
relational expressions involving function pointers.  Both sets of expressions
are invalid, but both are also quite different.

That said, as I mentioned in bug 103945 comment 4: the patch I submitted in
October 2020 detects invalid relational comparisons of unrelated pointers of
all kinds (https://gcc.gnu.org/pipermail/gcc-patches/2020-November/558775.html;
the patch review was never finished).  I'd expect it to also diagnose
relational expressions involving null pointers (because they're treated as
distinct by the pointer-query infrastructure) but I don't see any tests for it,

[Bug c/81453] relational expression involving null pointer not diagnosed with -Wall

2022-01-10 Thread egallager at gcc dot gnu.org via Gcc-bugs 
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81453

Eric Gallager  changed:

   What|Removed |Added

 CC||dcb314 at hotmail dot com

--- Comment #3 from Eric Gallager  ---
*** Bug 103945 has been marked as a duplicate of this bug. ***

[Bug c/81453] relational expression involving null pointer not diagnosed with -Wall

2019-07-16 Thread egallager at gcc dot gnu.org 
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81453

--- Comment #2 from Eric Gallager  ---
The name -Wordered-pointer-comparison was suggested for this warning here: 
https://gcc.gnu.org/ml/gcc-patches/2007-01/msg00608.html

[Bug c/81453] relational expression involving null pointer not diagnosed with -Wall

2017-07-26 Thread mpolacek at gcc dot gnu.org 
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81453

Marek Polacek  changed:

   What|Removed |Added

 Status|ASSIGNED|NEW
   Assignee|mpolacek at gcc dot gnu.org|unassigned at gcc dot 
gnu.org

[Bug c/81453] relational expression involving null pointer not diagnosed with -Wall

2017-07-26 Thread mpolacek at gcc dot gnu.org 
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81453

Marek Polacek  changed:

   What|Removed |Added

 Status|UNCONFIRMED |ASSIGNED
   Last reconfirmed||2017-07-26
 CC||mpolacek at gcc dot gnu.org
   Assignee|unassigned at gcc dot gnu.org  |mpolacek at gcc dot 
gnu.org
 Ever confirmed|0   |1

[Bug c/81453] relational expression involving null pointer not diagnosed with -Wall

2017-07-17 Thread egall at gwmail dot gwu.edu 
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81453

Eric Gallager  changed:

   What|Removed |Added

 CC||egall at gwmail dot gwu.edu

--- Comment #1 from Eric Gallager  ---
Related: bug 7651