Hi,
sorry for appearing rude or posting the report to a wrong place, but http://mametesters.org/mantis/ I found on mamedev.org returns 403 Forbidden and I couldn't find any other site. If you can point me to a proper bug tracker, I'd be happy to post there.
I don't have Windows development env set up. but I am attaching a proof-of-concept patch, which abuses the m_bits field as a secondary key during the sorting phase to achieve a stable sort with a generic Quicksort. Under glibc, chdman output is the same, because glibc qsort() is stable as you mentioned above.
I expect that on Windows, qsort() is not stable and the output will change. Could you please check if you have time?
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