diff options
Diffstat (limited to 'gcc/c-common.c')
| -rw-r--r-- | gcc/c-common.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/gcc/c-common.c b/gcc/c-common.c index 6543bd0..f82a84b 100644 --- a/gcc/c-common.c +++ b/gcc/c-common.c @@ -7032,4 +7032,17 @@ c_build_cdtor_fns (void) struct gcc_targetcm targetcm = TARGETCM_INITIALIZER; #endif +/* Warn for division by zero according to the value of DIVISOR. */ + +void +warn_for_div_by_zero (tree divisor) +{ + /* If DIVISOR is zero, and has integral type, issue a warning about + division by zero. Do not issue a warning if DIVISOR has a + floating-point type, since we consider 0.0/0.0 a valid way of + generating a NaN. */ + if (skip_evaluation == 0 && integer_zerop (divisor)) + warning (OPT_Wdiv_by_zero, "division by zero"); +} + #include "gt-c-common.h" |