New submission from Matthieu Gautier:
I_set_sw function is missing a SWAP_INT.
This leads to wrong set of bitfield value.
Here is a script to reproduce:
----------
from ctypes import *
class HEADER(BigEndianStructure):
_fields_ = ( ('pad', c_uint32, 16),
('v1', c_uint32, 4),
('v2', c_uint32, 12)
)
b = bytearray(4)
header = HEADER.from_buffer(b)
header.type = 1
assert b == b'\x00\x00\x10\x00'
header.mode = 0x234
assert b == b'\x00\x00\x12\x34'
----------
----------
components: ctypes
files: ctypes_swap_uint.patch
keywords: patch
messages: 234682
nosy: mgautierfr
priority: normal
severity: normal
status: open
title: Missing SWAP_INT in I_set_sw
type: behavior
versions: Python 3.4
Added file: http://bugs.python.org/file37856/ctypes_swap_uint.patch
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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue23319>
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