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author | Neil Booth <neil@daikokuya.demon.co.uk> | 2001-10-23 18:14:31 +0000 |
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committer | Neil Booth <neil@gcc.gnu.org> | 2001-10-23 18:14:31 +0000 |
commit | 6c36d76bf6521dd1cc09b8d7e379a02d138ffd53 (patch) | |
tree | a86518d1f2373ba547d08bd0867d006b5db75f24 /gcc/c-common.h | |
parent | 28a8851e654560d565e7270812ea1b2e1c33b14d (diff) | |
download | gcc-6c36d76bf6521dd1cc09b8d7e379a02d138ffd53.zip gcc-6c36d76bf6521dd1cc09b8d7e379a02d138ffd53.tar.gz gcc-6c36d76bf6521dd1cc09b8d7e379a02d138ffd53.tar.bz2 |
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.h | 3 |
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; |