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-rw-r--r--src/numeric.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/numeric.c b/src/numeric.c
index 744426c67..92e98a8a7 100644
--- a/src/numeric.c
+++ b/src/numeric.c
@@ -901,6 +901,8 @@ fix_mod(mrb_state *mrb, mrb_value x)
/* ZeroDivisionError */
return mrb_fixnum_value(0);
#else
+ if (a > 0) return mrb_float_value(mrb, INFINITY);
+ if (a < 0) return mrb_float_value(mrb, INFINITY);
return mrb_float_value(mrb, NAN);
#endif
}