Refactor some longobject internals:  PyLong_AsDouble and _PyLong_AsScaledDouble
(the latter renamed to _PyLong_Frexp) now use the same core code.  The
exponent produced by _PyLong_Frexp now has type Py_ssize_t instead of the
previously used int, and no longer needs scaling by PyLong_SHIFT.  This
frees the math module from having to know anything about the PyLong
implementation.  This closes issue #5576.
3 files changed