On 4/30/2012 17:42, mwil...@the-wire.com wrote:
On 4/30/2012 17:02, Kiuhnm wrote:
BignumTypePtr = ctypes.POINTER(BignumType)
for op, op_word in ((libbnem.BN_add, libbnem.BN_add_word),
(libbnem.BN_sub, libbnem.BN_sub_word)):
op.argtypes = [BignumTypePtr] * 3
op_word.argtypes = [BignumTypePtr, ctypes.c_ulong]
op.restype = op_word.restype = ctypes.c_int
On second thought, BignumPtrType is probably the right name.
(Way off the original topic, aren't we?) I haven't looked inside ctypes,
and don't know what kind of thing ctypes.POINTER actually constructs. I was
worried about falling into a [[a]]*3 kind of error -- unwittingly sharing a
mutable object. I guess I really should look.
Better off topic than uninterestingly in topic, IMHO.
Regarding ctypes, try this to convince yourself that there's no problem
in reusing BignumPtrType:
from ctypes import POINTER, c_int
assert POINTER(c_int) is POINTER(c_int)
Kiuhnm
--
http://mail.python.org/mailman/listinfo/python-list
