_PyLong_AsByteArray: added assert that the input is normalized. This is
outside the function's control, but is crucial to correct operation.
diff --git a/Objects/longobject.c b/Objects/longobject.c
index 3c22470..f8a9129 100644
--- a/Objects/longobject.c
+++ b/Objects/longobject.c
@@ -358,7 +358,11 @@
pincr = -1;
}
- /* Copy over all the Python digits. */
+ /* Copy over all the Python digits.
+ It's crucial that every Python digit except for the MSD contribute
+ exactly SHIFT bits to the total, so first assert that the long is
+ normalized. */
+ assert(ndigits == 0 || v->ob_digit[ndigits - 1] != 0);
j = 0;
accum = 0;
accumbits = 0;