No need for carry to be type twodigits in _PyLong_AsByteArray; digit is large enough.
This change should silence a compiler warning on Windows.
diff --git a/Objects/longobject.c b/Objects/longobject.c
index 9c1c30e..0a320e6 100644
--- a/Objects/longobject.c
+++ b/Objects/longobject.c
@@ -547,7 +547,7 @@
twodigits accum; /* sliding register */
unsigned int accumbits; /* # bits in accum */
int do_twos_comp; /* store 2's-comp? is_signed and v < 0 */
- twodigits carry; /* for computing 2's-comp */
+ digit carry; /* for computing 2's-comp */
size_t j; /* # bytes filled */
unsigned char* p; /* pointer to next byte in bytes */
int pincr; /* direction to move p */