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| author | neil <neil@138bc75d-0d04-0410-961f-82ee72b054a4> | 2001-10-23 18:14:31 +0000 |
|---|---|---|
| committer | neil <neil@138bc75d-0d04-0410-961f-82ee72b054a4> | 2001-10-23 18:14:31 +0000 |
| commit | bd08a4e696f9fc58eb5a47250566867849a358e4 (patch) | |
| tree | a86518d1f2373ba547d08bd0867d006b5db75f24 /gcc/c-common.c | |
| parent | 753a360f09c905c575eb1a106827a2e74c2e6bdc (diff) | |
| download | gcc-bd08a4e696f9fc58eb5a47250566867849a358e4.tar.gz | |
* c-common.c (warn_div_by_zero): New.
* c-common.h (warn_div_by_zero): New.
* c-decl.c (c_decode_option): Take it on the command line.
* c-typeck.c (build_binary_op): Warn about division by zero.
* doc/invoke.texi: Document the new command line option, fix
documentation of -Wmultichar.
* testsuite/gcc.dg/divbyzero.c: New tests.
* testsuite/gcc.dg/noncompile/20010524-1.c: Update.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@46439 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/c-common.c')
| -rw-r--r-- | gcc/c-common.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/gcc/c-common.c b/gcc/c-common.c index 6a4e1af48fc..bc81a1a3a01 100644 --- a/gcc/c-common.c +++ b/gcc/c-common.c @@ -194,6 +194,9 @@ int flag_short_wchar; int warn_sequence_point; +/* Nonzero means to warn about compile-time division by zero. */ +int warn_div_by_zero = 1; + /* The elements of `ridpointers' are identifier nodes for the reserved type names and storage classes. It is indexed by a RID_... value. */ tree *ridpointers; |