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r108489 - in /trunk/gcc: ChangeLog c-common.c c...
- From: bje at gcc dot gnu dot org
- To: gcc-cvs at gcc dot gnu dot org
- Date: Tue, 13 Dec 2005 23:33:29 -0000
- Subject: r108489 - in /trunk/gcc: ChangeLog c-common.c c...
Author: bje
Date: Tue Dec 13 23:33:26 2005
New Revision: 108489
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=108489
Log:
* c-common.c (c_common_truthvalue_conversion): Generalise warning
for addresses converted to booleans; not just function addresses.
* c-typeck.c (build_binary_op): Warn for address comparisons which
can never be NULL (eg. func == NULL or &var == NULL).
* common.opt (Walways-true): New option.
* c-opts.c (c_common_handle_option): Set it with -Wall.
* doc/invoke.texi: Document it.
testsuite/
* gcc.dg/warn-addr-cmp.c: New test.
Added:
trunk/gcc/testsuite/gcc.dg/warn-addr-cmp.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/c-common.c
trunk/gcc/c-opts.c
trunk/gcc/c-typeck.c
trunk/gcc/common.opt
trunk/gcc/doc/invoke.texi
trunk/gcc/testsuite/ChangeLog