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-rw-r--r--Objects/longobject.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/Objects/longobject.c b/Objects/longobject.c
index 7c805a5..9f605a1 100644
--- a/Objects/longobject.c
+++ b/Objects/longobject.c
@@ -145,6 +145,11 @@ PyLong_FromDouble(dval)
double frac;
int i, ndig, expo, neg;
neg = 0;
+ if (dval && dval * 0.5 == dval) {
+ PyErr_SetString(PyExc_OverflowError,
+ "cannot convert float infinity to long");
+ return NULL;
+ }
if (dval < 0.0) {
neg = 1;
dval = -dval;