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authorNeil Booth <neil@daikokuya.demon.co.uk>2001-10-23 18:14:31 +0000
committerNeil Booth <neil@gcc.gnu.org>2001-10-23 18:14:31 +0000
commit6c36d76bf6521dd1cc09b8d7e379a02d138ffd53 (patch)
treea86518d1f2373ba547d08bd0867d006b5db75f24 /gcc/c-common.h
parent28a8851e654560d565e7270812ea1b2e1c33b14d (diff)
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c-common.c (warn_div_by_zero): New.
* 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. From-SVN: r46439
Diffstat (limited to 'gcc/c-common.h')
-rw-r--r--gcc/c-common.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/gcc/c-common.h b/gcc/c-common.h
index 89a4ae7..0d45693 100644
--- a/gcc/c-common.h
+++ b/gcc/c-common.h
@@ -401,6 +401,9 @@ extern int warn_missing_format_attribute;
extern int warn_pointer_arith;
+/* Nonzero means to warn about compile-time division by zero. */
+extern int warn_div_by_zero;
+
/* Nonzero means do some things the same way PCC does. */
extern int flag_traditional;