[issue42323] [AIX] test_math: test_nextafter(float('nan'), 1.0) does not return a NaN on AIX

[David Edelsohn]

David Edelsohn <dje.gcc at gmail.com> added the comment:

I investigated another problem with nextafter() in 2015 and opened an internal IBM AIX PMR.  At the time it was not using decimal float code.

The earlier problem was the handling of -0.0.  At the time, the code was hand-written assembly language that did not check for IEEE floating point corner cases.

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