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| author | Mark Dickinson <dickinsm@gmail.com> | 2013-07-20 16:59:13 (GMT) |
|---|---|---|
| committer | Mark Dickinson <dickinsm@gmail.com> | 2013-07-20 16:59:13 (GMT) |
| commit | 58ceecfe5ac0ad436d556b589870dd2df62731c0 (patch) | |
| tree | b9303a76865599bf1dec6fb4626b22573419cfc9 | |
| parent | 7ed4294d7f821a0733ab47285317f06a8c51e5db (diff) | |
| download | cpython-58ceecfe5ac0ad436d556b589870dd2df62731c0.zip cpython-58ceecfe5ac0ad436d556b589870dd2df62731c0.tar.gz cpython-58ceecfe5ac0ad436d556b589870dd2df62731c0.tar.bz2 | |
Issue #18513: Add workaround for OS X 10.8 cexp bug that leads to wrong cmath.rect(0.0,-0.0) results.
| -rw-r--r-- | Misc/NEWS | 3 | ||||
| -rw-r--r-- | Modules/cmathmodule.c | 7 |
2 files changed, 10 insertions, 0 deletions
@@ -49,6 +49,9 @@ Core and Builtins Library ------- +- Issue #18513: Fix behaviour of cmath.rect w.r.t. signed zeros on OS X 10.8 + + gcc. + - Issue #18480: Add missing call to PyType_Ready to the _elementtree extension. - Issue #17778: Fix test discovery for test_multiprocessing. (Patch by diff --git a/Modules/cmathmodule.c b/Modules/cmathmodule.c index 3021cf0..36bf4a1 100644 --- a/Modules/cmathmodule.c +++ b/Modules/cmathmodule.c @@ -1006,6 +1006,13 @@ cmath_rect(PyObject *self, PyObject *args) else errno = 0; } + else if (phi == 0.0) { + /* Workaround for buggy results with phi=-0.0 on OS X 10.8. See + bugs.python.org/issue18513. */ + z.real = r; + z.imag = r * phi; + errno = 0; + } else { z.real = r * cos(phi); z.imag = r * sin(phi); |