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float_floor_div: An expression like 3.//1j crashed the interpreter, or

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delivered bizarre results.  Check float_divmod for a Py_NotImplemented
return and pass it along (instead of treating Py_NotImplemented as a
2-tuple).
CONVERT_TO_DOUBLE:  Added comments; this macro is obscure.
This commit is contained in:
Tim Peters 2001-12-11 20:31:34 +00:00
parent 63a3571e17
commit 77d8a4fc91
1 changed files with 12 additions and 9 deletions
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13
Objects/floatobject.c
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@ -265,8 +265,11 @@ PyFloat_AsStringEx(char *buf, PyFloatObject *v, int precision)
/* Macro and helper that convert PyObject obj to a C double and store /* Macro and helper that convert PyObject obj to a C double and store
the value in dbl; this replaces the functionality of the coercion the value in dbl; this replaces the functionality of the coercion
slot function */ slot function. If conversion to double raises an exception, obj is
set to NULL, and the function invoking this macro returns NULL. If
obj is not of float, int or long type, Py_NotImplemented is incref'ed,
stored in obj, and returned from the function invoking this macro.
*/
#define CONVERT_TO_DOUBLE(obj, dbl) \ #define CONVERT_TO_DOUBLE(obj, dbl) \
if (PyFloat_Check(obj)) \ if (PyFloat_Check(obj)) \
dbl = PyFloat_AS_DOUBLE(obj); \ dbl = PyFloat_AS_DOUBLE(obj); \
@ -519,13 +522,13 @@ float_floor_div(PyObject *v, PyObject *w)
PyObject *t, *r; PyObject *t, *r;
t = float_divmod(v, w); t = float_divmod(v, w);
if (t != NULL) { if (t == NULL || t == Py_NotImplemented)
return t;
assert(PyTuple_CheckExact(t));
r = PyTuple_GET_ITEM(t, 0); r = PyTuple_GET_ITEM(t, 0);
Py_INCREF(r); Py_INCREF(r);
Py_DECREF(t); Py_DECREF(t);
return r; return r;
}
return NULL;
} }
static PyObject * static PyObject *