Consolidate the int and long sequence repeat code. Before the change,

integers checked for integer overflow but longs did not.

2 files changed, 0 insertions, 65 deletions

diff --git a/Objects/intobject.c b/Objects/intobject.c
index 7242dd0..19d18d3 100644
--- a/Objects/intobject.c
+++ b/Objects/intobject.c
@@ -354,14 +354,6 @@ one that can lose catastrophic amounts of information, it's the native long
 product that must have overflowed.
 */
 
-/* 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)
 {
@@ -370,44 +362,6 @@ int_mul(PyObject *v, PyObject *w)
 	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);
 	CONVERT_TO_LONG(w, b);
 	longprod = a * b;
diff --git a/Objects/longobject.c b/Objects/longobject.c
index 5038823..cb27e79 100644
--- a/Objects/longobject.c
+++ b/Objects/longobject.c
@@ -1508,17 +1508,6 @@ long_sub(PyLongObject *v, PyLongObject *w)
 	return (PyObject *)z;
 }
 
-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.
  */
@@ -1868,14 +1857,6 @@ long_mul(PyLongObject *v, PyLongObject *w)
 	PyLongObject *a, *b, *z;
 
 	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;
 	}