[Python-checkins] python/dist/src/Objects intobject.c,2.95,2.96 longobject.c,1.145,1.146
nascheme@users.sourceforge.net
nascheme@users.sourceforge.net
Mon, 30 Dec 2002 12:19:04 -0800
Update of /cvsroot/python/python/dist/src/Objects
In directory sc8-pr-cvs1:/tmp/cvs-serv11142/Objects
Modified Files:
intobject.c longobject.c
Log Message:
Consolidate the int and long sequence repeat code. Before the change,
integers checked for integer overflow but longs did not.
Index: intobject.c
===================================================================
RCS file: /cvsroot/python/python/dist/src/Objects/intobject.c,v
retrieving revision 2.95
retrieving revision 2.96
diff -C2 -d -r2.95 -r2.96
*** intobject.c 19 Nov 2002 20:49:15 -0000 2.95
--- intobject.c 30 Dec 2002 20:19:02 -0000 2.96
***************
*** 355,366 ****
*/
- /* Return true if the sq_repeat method should be used */
- #define USE_SQ_REPEAT(o) (!PyInt_Check(o) && \
- o->ob_type->tp_as_sequence && \
- o->ob_type->tp_as_sequence->sq_repeat && \
- !(o->ob_type->tp_as_number && \
- o->ob_type->tp_flags & Py_TPFLAGS_CHECKTYPES && \
- o->ob_type->tp_as_number->nb_multiply))
-
static PyObject *
int_mul(PyObject *v, PyObject *w)
--- 355,358 ----
***************
*** 370,411 ****
double doubled_longprod; /* (double)longprod */
double doubleprod; /* (double)a * (double)b */
-
- if (USE_SQ_REPEAT(v)) {
- repeat:
- /* sequence * int */
- a = PyInt_AsLong(w);
- #if LONG_MAX != INT_MAX
- if (a > INT_MAX) {
- PyErr_SetString(PyExc_ValueError,
- "sequence repeat count too large");
- return NULL;
- }
- else if (a < INT_MIN)
- a = INT_MIN;
- /* XXX Why don't I either
-
- - set a to -1 whenever it's negative (after all,
- sequence repeat usually treats negative numbers
- as zero(); or
-
- - raise an exception when it's less than INT_MIN?
-
- I'm thinking about a hypothetical use case where some
- sequence type might use a negative value as a flag of
- some kind. In those cases I don't want to break the
- code by mapping all negative values to -1. But I also
- don't want to break e.g. []*(-sys.maxint), which is
- perfectly safe, returning []. As a compromise, I do
- map out-of-range negative values.
- */
- #endif
- return (*v->ob_type->tp_as_sequence->sq_repeat)(v, a);
- }
- if (USE_SQ_REPEAT(w)) {
- PyObject *tmp = v;
- v = w;
- w = tmp;
- goto repeat;
- }
CONVERT_TO_LONG(v, a);
--- 362,365 ----
Index: longobject.c
===================================================================
RCS file: /cvsroot/python/python/dist/src/Objects/longobject.c,v
retrieving revision 1.145
retrieving revision 1.146
diff -C2 -d -r1.145 -r1.146
*** longobject.c 19 Nov 2002 20:49:15 -0000 1.145
--- longobject.c 30 Dec 2002 20:19:02 -0000 1.146
***************
*** 1509,1523 ****
}
- static PyObject *
- long_repeat(PyObject *v, PyLongObject *w)
- {
- /* sequence * long */
- long n = PyLong_AsLong((PyObject *) w);
- if (n == -1 && PyErr_Occurred())
- return NULL;
- else
- return (*v->ob_type->tp_as_sequence->sq_repeat)(v, n);
- }
-
/* Grade school multiplication, ignoring the signs.
* Returns the absolute value of the product, or NULL if error.
--- 1509,1512 ----
***************
*** 1869,1880 ****
if (!convert_binop((PyObject *)v, (PyObject *)w, &a, &b)) {
- if (!PyLong_Check(v) &&
- v->ob_type->tp_as_sequence &&
- v->ob_type->tp_as_sequence->sq_repeat)
- return long_repeat((PyObject *)v, w);
- if (!PyLong_Check(w) &&
- w->ob_type->tp_as_sequence &&
- w->ob_type->tp_as_sequence->sq_repeat)
- return long_repeat((PyObject *)w, v);
Py_INCREF(Py_NotImplemented);
return Py_NotImplemented;
--- 1858,1861 ----