Author gregory.p.smith
Recipients benjamin.peterson, fweimer, gregory.p.smith, inada.naoki, nascheme, pitrou, skrah, tgrigg, twouters, vstinner
Date 2019-05-25.15:57:23
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Message-id <1558799843.75.0.459217820731.issue27987@roundup.psfhosted.org>
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Content
long double was changed to double seven years ago to avoid a different kind of undefined behavior...  https://github.com/python/cpython/commit/e348c8d154cf6342c79d627ebfe89dfe9de23817#diff-fb41bdaf12f733cf6ab8a82677d03adc

We are going in circles here.

Submitting that PR to 3.7 caused the undefined behavior sanitizer buildbot to go back to reporting a ton more damage.

build before: https://buildbot.python.org/all/#/builders/137/builds/878 
   52k lines of test stdio
build after: https://buildbot.python.org/all/#/builders/137/builds/879
 4900k lines of test stdio
History
Date User Action Args
2019-05-25 15:57:23gregory.p.smithsetrecipients: + gregory.p.smith, twouters, nascheme, pitrou, vstinner, benjamin.peterson, inada.naoki, skrah, fweimer, tgrigg
2019-05-25 15:57:23gregory.p.smithsetmessageid: <1558799843.75.0.459217820731.issue27987@roundup.psfhosted.org>
2019-05-25 15:57:23gregory.p.smithlinkissue27987 messages
2019-05-25 15:57:23gregory.p.smithcreate