Fix special cases in pow()
diff --git a/Objects/floatobject.c b/Objects/floatobject.c
index 0549990..e2095d7 100644
--- a/Objects/floatobject.c
+++ b/Objects/floatobject.c
@@ -223,8 +223,20 @@
}
iv = v->ob_fval;
iw = ((floatobject *)w)->ob_fval;
+ /* Sort out special cases here instead of relying on pow() */
if (iw == 0.0)
return newfloatobject(1.0); /* x**0 is 1, even 0**0 */
+ if (iv == 0.0) {
+ if (iw < 0.0) {
+ err_setstr(RuntimeError, "0.0 to the negative power");
+ return NULL;
+ }
+ return newfloatobject(0.0);
+ }
+ if (iv < 0.0) {
+ err_setstr(RuntimeError, "negative float to float power");
+ return NULL;
+ }
errno = 0;
ix = pow(iv, iw);
if (errno != 0) {