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| author | Mark Dickinson <mdickinson@enthought.com> | 2017-02-20 20:28:15 (GMT) |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2017-02-20 20:28:15 (GMT) |
| commit | 112ec38c15b388fe025ccb85369a584d218b1160 (patch) | |
| tree | 411b56a68f3900436949eb6ce1a49a8f6c035826 /Objects/complexobject.c | |
| parent | 1b8df107f867fb05ff39ebee7c55f0a907e7ad5f (diff) | |
| download | cpython-112ec38c15b388fe025ccb85369a584d218b1160.zip cpython-112ec38c15b388fe025ccb85369a584d218b1160.tar.gz cpython-112ec38c15b388fe025ccb85369a584d218b1160.tar.bz2 | |
bpo-29602: fix signed zero handling in complex constructor. (#203)
* Fix incorrect handling of signed zeros for complex-related classes.
* Add Misc/NEWS entry.
Diffstat (limited to 'Objects/complexobject.c')
| -rw-r--r-- | Objects/complexobject.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/Objects/complexobject.c b/Objects/complexobject.c index 0d391e5..5cc17ff 100644 --- a/Objects/complexobject.c +++ b/Objects/complexobject.c @@ -1025,11 +1025,11 @@ complex_new(PyTypeObject *type, PyObject *args, PyObject *kwds) return NULL; } cr.real = PyFloat_AsDouble(tmp); - cr.imag = 0.0; /* Shut up compiler warning */ + cr.imag = 0.0; Py_DECREF(tmp); } if (i == NULL) { - ci.real = 0.0; + ci.real = cr.imag; } else if (PyComplex_Check(i)) { ci = ((PyComplexObject*)i)->cval; @@ -1051,7 +1051,7 @@ complex_new(PyTypeObject *type, PyObject *args, PyObject *kwds) if (ci_is_complex) { cr.real -= ci.imag; } - if (cr_is_complex) { + if (cr_is_complex && i != NULL) { ci.real += cr.imag; } return complex_subtype_from_doubles(type, cr.real, ci.real); |