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| author | thorpej <thorpej@138bc75d-0d04-0410-961f-82ee72b054a4> | 2002-05-18 19:02:03 +0000 |
|---|---|---|
| committer | thorpej <thorpej@138bc75d-0d04-0410-961f-82ee72b054a4> | 2002-05-18 19:02:03 +0000 |
| commit | 959f435be90da086adecd9320cc25a9a2cd20a0b (patch) | |
| tree | c6b8df55dea21cfdbf9d6f73c35e548d165992b2 /gcc/c-common.h | |
| parent | 40570cc2420d0b37344c8a1835160d75eb2b5dcd (diff) | |
| download | gcc-959f435be90da086adecd9320cc25a9a2cd20a0b.tar.gz | |
* c-common.c (c_common_post_options): Warn if -Wformat-zero-length
is used without -Wformat.
* c-common.h (warn_format_zero_length): Declare extern.
* c-decl.c (warn_options): Add "format-zero-length".
* c-format.c (warn_format_zero_length): Declare.
(set_Wformat): Set warn_format_zero_length for -Wformat.
(check_format_info): Only warn about zero-length formats if
warn_format_zero_length is true. Include the format type
name in the warning message.
* doc/invoke.texi: Document -Wformat-zero-length.
* testsuite/gcc.dg/format/zero-length-1.c: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@53592 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/c-common.h')
| -rw-r--r-- | gcc/c-common.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/gcc/c-common.h b/gcc/c-common.h index 7c5c30dab9d..8666095118f 100644 --- a/gcc/c-common.h +++ b/gcc/c-common.h @@ -414,6 +414,10 @@ extern int warn_format_y2k; extern int warn_format_extra_args; +/* Warn about zero-length formats. */ + +extern int warn_format_zero_length; + /* Warn about non-literal format arguments. */ extern int warn_format_nonliteral; |