[issue20160] broken ctypes calling convention on MSVC / 64-bit Windows (large structs)

[Steve Dower]

Steve Dower added the comment:

It could be, though I admit I don't know ctypes or libffi that well.

Should be easy enough to set up a repro for this (we'll add a function to _ctypes_test eventually that calls back and passes a struct) - I'll get to it sooner or later, but if someone else gets there first that'd be great.

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue20160>
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