Remove size constraints in SLICE opcodes.
diff --git a/Python/ceval.c b/Python/ceval.c
index 0f2b173..131f5a7 100644
--- a/Python/ceval.c
+++ b/Python/ceval.c
@@ -3851,8 +3851,9 @@
}
/* Extract a slice index from a PyInt or PyLong, and store in *pi.
- Silently reduce values larger than INT_MAX to INT_MAX, and silently
- boost values less than -INT_MAX to 0. Return 0 on error, 1 on success.
+ Silently reduce values larger than PY_SSIZE_T_MAX to PY_SSIZE_T_MAX,
+ and silently boost values less than -PY_SSIZE_T_MAX to 0.
+ Return 0 on error, 1 on success.
*/
/* Note: If v is NULL, return success without storing into *pi. This
is because_PyEval_SliceIndex() is called by apply_slice(), which can be
@@ -3862,11 +3863,11 @@
_PyEval_SliceIndex(PyObject *v, Py_ssize_t *pi)
{
if (v != NULL) {
- long x;
+ Py_ssize_t x;
if (PyInt_Check(v)) {
x = PyInt_AsLong(v);
} else if (PyLong_Check(v)) {
- x = PyLong_AsLong(v);
+ x = PyInt_AsSsize_t(v);
if (x==-1 && PyErr_Occurred()) {
PyObject *long_zero;
int cmp;
@@ -3883,8 +3884,8 @@
/* It's an overflow error, so we need to
check the sign of the long integer,
- set the value to INT_MAX or -INT_MAX,
- and clear the error. */
+ set the value to PY_SSIZE_T_MAX or
+ -PY_SSIZE_T_MAX, and clear the error. */
/* Create a long integer with a value of 0 */
long_zero = PyLong_FromLong(0L);
@@ -3898,21 +3899,15 @@
if (cmp < 0)
return 0;
else if (cmp)
- x = INT_MAX;
+ x = PY_SSIZE_T_MAX;
else
- x = -INT_MAX;
+ x = -PY_SSIZE_T_MAX;
}
} else {
PyErr_SetString(PyExc_TypeError,
"slice indices must be integers");
return 0;
}
- /* Truncate -- very long indices are truncated anyway */
- /* XXX truncate by ssize maximum */
- if (x > INT_MAX)
- x = INT_MAX;
- else if (x < -INT_MAX)
- x = -INT_MAX;
*pi = x;
}
return 1;
@@ -3928,7 +3923,7 @@
PySequenceMethods *sq = tp->tp_as_sequence;
if (sq && sq->sq_slice && ISINT(v) && ISINT(w)) {
- Py_ssize_t ilow = 0, ihigh = INT_MAX;
+ Py_ssize_t ilow = 0, ihigh = PY_SSIZE_T_MAX;
if (!_PyEval_SliceIndex(v, &ilow))
return NULL;
if (!_PyEval_SliceIndex(w, &ihigh))
@@ -3955,7 +3950,7 @@
PySequenceMethods *sq = tp->tp_as_sequence;
if (sq && sq->sq_slice && ISINT(v) && ISINT(w)) {
- Py_ssize_t ilow = 0, ihigh = INT_MAX;
+ Py_ssize_t ilow = 0, ihigh = PY_SSIZE_T_MAX;
if (!_PyEval_SliceIndex(v, &ilow))
return -1;
if (!_PyEval_SliceIndex(w, &ihigh))