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author | sayle <sayle@138bc75d-0d04-0410-961f-82ee72b054a4> | 2005-12-04 19:56:47 +0000 |
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committer | sayle <sayle@138bc75d-0d04-0410-961f-82ee72b054a4> | 2005-12-04 19:56:47 +0000 |
commit | 19f0596c4a5e1a38ec4e960f475f89dab547665d (patch) | |
tree | 0c868f77e7b841472e04bdb16256459255a05c04 /gcc/c-opts.c | |
parent | 4a72b87684934abf9883bb0a90f0f3cb7329b659 (diff) | |
download | ppe42-gcc-19f0596c4a5e1a38ec4e960f475f89dab547665d.tar.gz ppe42-gcc-19f0596c4a5e1a38ec4e960f475f89dab547665d.zip |
PR c/7776
* common.opt (Wstring-literal-comparison): New command line option.
* c-opts.c (c_common_handle_option): Set it with -Wall.
* c-typeck.c (parser_build_binary_op): Issue warning if either
operand of a comparison operator is a string literal, except for
testing equality or inequality against NULL.
* doc/invoke.texi: Document new -Wstring-literal-comparison option.
* gcc.dg/Wstring-literal-comparison-1.c: New test case.
* gcc.dg/Wstring-literal-comparison-2.c: Likewise.
* gcc.dg/Wstring-literal-comparison-3.c: Likewise.
* gcc.dg/Wstring-literal-comparison-4.c: Likewise.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@108018 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/c-opts.c')
-rw-r--r-- | gcc/c-opts.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/gcc/c-opts.c b/gcc/c-opts.c index 62db668b4e1..86f224407be 100644 --- a/gcc/c-opts.c +++ b/gcc/c-opts.c @@ -386,6 +386,7 @@ c_common_handle_option (size_t scode, const char *arg, int value) warn_sign_compare = value; warn_switch = value; warn_strict_aliasing = value; + warn_string_literal_comparison = value; /* Only warn about unknown pragmas that are not in system headers. */ |