Message291994
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. |
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Date |
User |
Action |
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2017-04-20 18:52:16 | mark.dickinson | set | recipients:
+ mark.dickinson, vstinner, koobs |
2017-04-20 18:52:16 | mark.dickinson | set | messageid: <1492714336.27.0.224705825002.issue30104@psf.upfronthosting.co.za> |
2017-04-20 18:52:16 | mark.dickinson | link | issue30104 messages |
2017-04-20 18:52:16 | mark.dickinson | create | |
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