Message140279
I don't like your test because it depends on system endian:
+ if sys.byteorder == "little":
+ struct.menu.spam = 0x000000FF
+ else:
+ struct.menu.spam = 0xFF000000
I would prefer a test creating a structure from a byte string. Something like:
---------------------------
import ctypes
class Nested(ctypes.BigEndianStructure):
_fields_ = (
('x', ctypes.c_uint32),
('y', ctypes.c_uint32),
)
class TestStruct(ctypes.BigEndianStructure):
_fields_ = (
('point', Nested),
)
data = b'\0\0\0\1\0\0\0\2'
assert len(data) == ctypes.sizeof(TestStruct)
obj = ctypes.cast(data, ctypes.POINTER(TestStruct))[0]
assert obj.point.x == 1
assert obj.point.y == 2
---------------------------
Use b'\1\0\0\0\2\0\0\0' for little endian. |
|
Date |
User |
Action |
Args |
2011-07-13 16:05:38 | vstinner | set | recipients:
+ vstinner, theller, terry.reedy, amaury.forgeotdarc, castironpi, Alexander.Belopolsky, Jake.Coffman, vladris |
2011-07-13 16:05:38 | vstinner | set | messageid: <1310573138.87.0.941834501524.issue4376@psf.upfronthosting.co.za> |
2011-07-13 16:05:38 | vstinner | link | issue4376 messages |
2011-07-13 16:05:38 | vstinner | create | |
|