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Issue #5920: Changed format.__float__ and complex.__float__ to use a precision of 12 when using the empty presentation type. This more closely matches str()'s behavior and reduces surprises when adding alignment flags to an empty format string. Patch by Mark Dickinson.

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This commit is contained in:
Eric Smith 2009-05-05 18:26:08 +00:00
parent 929ab93489
commit a985a3aee4
9 changed files with 110 additions and 27 deletions
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6
Include/floatobject.h
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@ -21,6 +21,12 @@ PyAPI_DATA(PyTypeObject) PyFloat_Type;
#define PyFloat_Check(op) PyObject_TypeCheck(op, &PyFloat_Type)
#define PyFloat_CheckExact(op) (Py_TYPE(op) == &PyFloat_Type)
/* The str() precision PyFloat_STR_PRECISION is chosen so that in most cases,
the rounding noise created by various operations is suppressed, while
giving plenty of precision for practical use. */
#define PyFloat_STR_PRECISION 12
#ifdef Py_NAN
#define Py_RETURN_NAN return PyFloat_FromDouble(Py_NAN)
#endif