New submission from Tim Maxwell <[EMAIL PROTECTED]>: Steps to reproduce:
Python 2.5.2 (r252:60911, Feb 22 2008, 07:57:53) [GCC 4.0.1 (Apple Computer, Inc. build 5363)] on darwin Type "help", "copyright", "credits" or "license" for more information. >>> from ctypes import * >>> fields = [('a', c_short, 4), ('b', c_short, 4), ('c', c_long, 24)] >>> class Foo(Structure): ... _fields_ = fields ... >>> Foo.a <Field type=c_short, ofs=0:0, bits=4> >>> Foo.b <Field type=c_short, ofs=0:4, bits=4> >>> Foo.c <Field type=c_long, ofs=-2:8, bits=24> # Wrong! More about my machine: >>> sizeof(c_short) 2 >>> sizeof(c_long) 4 This particular example comes from a 32-bit Mac OS X Intel machine. The bug has been reproduced on Linux as well, but could not be reproduced on Windows XP. ---------- assignee: theller components: ctypes messages: 71060 nosy: theller, tim.maxwell severity: normal status: open title: Ctypes is confused by bitfields of varying integer types type: behavior versions: Python 2.5 _______________________________________ Python tracker <[EMAIL PROTECTED]> <http://bugs.python.org/issue3547> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com