New submission from STINNER Victor <victor.stin...@haypocalc.com>: On "NetBSD 5 i386 3.x" buildbot, testTanh() of test_math fails because the sign of wrong.
configure scripts has a test to check if tanh(-0.0) keeps the sign or no, and on this buildbot the result is "no". pyconfig.h contains a TANH_PRESERVES_ZERO_SIGN define, but it is not used in Modules/mathmodule.c. Extract of configure comment: # On FreeBSD 6.2, it appears that tanh(-0.) returns 0. instead of # -0. on some architectures. --- http://www.python.org/dev/buildbot/builders/NetBSD%205%20i386%203.x/builds/237/steps/configure/logs/stdio ... checking whether tanh preserves the sign of zero... no ... http://www.python.org/dev/buildbot/builders/NetBSD%205%20i386%203.x/builds/237/steps/test/logs/stdio ====================================================================== FAIL: testTanh (test.test_math.MathTests) ---------------------------------------------------------------------- Traceback (most recent call last): File "/home/buildbot/buildarea/3.x.smith-netbsd-i386/build/Lib/test/test_math.py", line 898, in testTanh math.copysign(1., -0.)) AssertionError: 1.0 != -1.0 ---------------------------------------------------------------------- ---------- components: Library (Lib) messages: 120604 nosy: haypo priority: normal severity: normal status: open title: testTanh() of test_math fails on "NetBSD 5 i386 3.x" versions: Python 3.1, Python 3.2 _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue10337> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
