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| author | Mark Dickinson <mdickinson@enthought.com> | 2011-09-25 14:26:43 (GMT) |
|---|---|---|
| committer | Mark Dickinson <mdickinson@enthought.com> | 2011-09-25 14:26:43 (GMT) |
| commit | 50203a69b344e80be5000fe87aafad09e84cde85 (patch) | |
| tree | 37fd4195a22a2a2db62c256ad29a5d1cfa0fb7a4 /Modules | |
| parent | 36f27c995ad3d8732f51c91f43dacf72823382c6 (diff) | |
| download | cpython-50203a69b344e80be5000fe87aafad09e84cde85.zip cpython-50203a69b344e80be5000fe87aafad09e84cde85.tar.gz cpython-50203a69b344e80be5000fe87aafad09e84cde85.tar.bz2 | |
Return +-Py_HUGE_VAL for tgamma(+-0) instead of risking FP exceptions by computing 1.0 / 0.0.
Diffstat (limited to 'Modules')
| -rw-r--r-- | Modules/mathmodule.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/Modules/mathmodule.c b/Modules/mathmodule.c index cebb4ff..7e73bfe 100644 --- a/Modules/mathmodule.c +++ b/Modules/mathmodule.c @@ -239,7 +239,8 @@ m_tgamma(double x) } if (x == 0.0) { errno = EDOM; - return 1.0/x; /* tgamma(+-0.0) = +-inf, divide-by-zero */ + /* tgamma(+-0.0) = +-inf, divide-by-zero */ + return copysign(Py_HUGE_VAL, x); } /* integer arguments */ |