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-rw-r--r--insns.def16
1 files changed, 14 insertions, 2 deletions
diff --git a/insns.def b/insns.def
index 78318940f6..f82c5db326 100644
--- a/insns.def
+++ b/insns.def
@@ -1676,7 +1676,13 @@ opt_lt
else if (HEAP_CLASS_OF(recv) == rb_cFloat &&
HEAP_CLASS_OF(obj) == rb_cFloat &&
BASIC_OP_UNREDEFINED_P(BOP_LT)) {
- val = RFLOAT_VALUE(recv) < RFLOAT_VALUE(obj) ? Qtrue : Qfalse;
+ double a = RFLOAT_VALUE(recv);
+ double b = RFLOAT_VALUE(obj);
+#if defined(_MSC_VER) && _MSC_VER < 1300
+ if (isnan(a) || isnan(b)) val = Qfalse;
+ else
+#endif
+ val = a < b ? Qtrue : Qfalse;
}
#endif
else {
@@ -1750,7 +1756,13 @@ opt_gt
else if (HEAP_CLASS_OF(recv) == rb_cFloat &&
HEAP_CLASS_OF(obj) == rb_cFloat &&
BASIC_OP_UNREDEFINED_P(BOP_GT)) {
- val = RFLOAT_VALUE(recv) > RFLOAT_VALUE(obj) ? Qtrue : Qfalse;
+ double a = RFLOAT_VALUE(recv);
+ double b = RFLOAT_VALUE(obj);
+#if defined(_MSC_VER) && _MSC_VER < 1300
+ if (isnan(a) || isnan(b)) val = Qfalse;
+ else
+#endif
+ val = a > b ? Qtrue : Qfalse;
}
#endif
else {