Mark Dickinson added the comment: Hmm. Just looked at dto5.c; nice work reducing it to something so simple.
This is looking a bit like either a strict-aliasing related problem, or a compiler bug, or both. My understanding of the "union trick" that dtoa.c uses is that it's well-defined under C99+TC3 (though that wasn't clear under the original C99), so it shouldn't be legitimate for an optimisation to cause different results to be produced. So this is smelling like a compiler bug to me. ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue30104> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
