backport tim_one's checkin of

    revision 1.114 of longobject.c

_PyLong_Copy():  was creating a copy of the absolute value, but should
copy the sign too.  Added a test to test_descr to ensure that it does.

Bugfix candidate.

diff --git a/Objects/longobject.c b/Objects/longobject.c
index 5b7a00aa9fcf817b66f1fb1a6e753e10c07453aa..f3e7df7134285eb1757bfd14845f95ab21126f98 100644 (file)
--- a/Objects/longobject.c
+++ b/Objects/longobject.c
@@ -63,7 +63,7 @@ _PyLong_Copy(PyLongObject *src)
                i = -(i);
        result = _PyLong_New(i);
        if (result != NULL) {
-               result->ob_size = i;
+               result->ob_size = src->ob_size;
                while (--i >= 0)
                        result->ob_digit[i] = src->ob_digit[i];
        }