[issue26628] Undefined behavior calling C functions with ctypes.Union arguments

[Vinay Sajip]

Vinay Sajip <vinay_sajip at yahoo.co.uk> added the comment:

This is now fixed as a result of fixing bpo-16575. The unioncrash.py script now gives an error message:

$ python3.9 ~/tmp/unioncrash.py 
Traceback (most recent call last):
  File "/home/vinay/tmp/unioncrash.py", line 10, in <module>
    sin.argtypes = [MyUnion]
TypeError: item 1 in _argtypes_ passes a union by value, which is unsupported.

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resolution:  -> fixed
stage:  -> resolved
status: open -> closed

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue26628>
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