[issue29565] Still broken ctypes calling convention on MSVC / 64-bit Windows (large structs)

[Steve Dower]

Steve Dower added the comment:

The contents of the struct is just being big enough to reach the point where it is passed by reference rather than by value.

This issue is pointing out that it should be a reference to a temporary copy of the struct, so that if the called function modifies the argument then it doesn't affect the caller.

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue29565>
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