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-rw-r--r--Objects/listobject.c22
1 files changed, 8 insertions, 14 deletions
diff --git a/Objects/listobject.c b/Objects/listobject.c
index d688179..81b40ae 100644
--- a/Objects/listobject.c
+++ b/Objects/listobject.c
@@ -216,7 +216,6 @@ int
PyList_SetItem(PyObject *op, Py_ssize_t i,
PyObject *newitem)
{
- PyObject *olditem;
PyObject **p;
if (!PyList_Check(op)) {
Py_XDECREF(newitem);
@@ -230,9 +229,7 @@ PyList_SetItem(PyObject *op, Py_ssize_t i,
return -1;
}
p = ((PyListObject *)op) -> ob_item + i;
- olditem = *p;
- *p = newitem;
- Py_XDECREF(olditem);
+ Py_SETREF(*p, newitem);
return 0;
}
@@ -251,7 +248,7 @@ ins1(PyListObject *self, Py_ssize_t where, PyObject *v)
return -1;
}
- if (list_resize(self, n+1) == -1)
+ if (list_resize(self, n+1) < 0)
return -1;
if (where < 0) {
@@ -291,7 +288,7 @@ app1(PyListObject *self, PyObject *v)
return -1;
}
- if (list_resize(self, n+1) == -1)
+ if (list_resize(self, n+1) < 0)
return -1;
Py_INCREF(v);
@@ -711,7 +708,7 @@ list_inplace_repeat(PyListObject *self, Py_ssize_t n)
return PyErr_NoMemory();
}
- if (list_resize(self, size*n) == -1)
+ if (list_resize(self, size*n) < 0)
return NULL;
p = size;
@@ -730,7 +727,6 @@ list_inplace_repeat(PyListObject *self, Py_ssize_t n)
static int
list_ass_item(PyListObject *a, Py_ssize_t i, PyObject *v)
{
- PyObject *old_value;
if (i < 0 || i >= Py_SIZE(a)) {
PyErr_SetString(PyExc_IndexError,
"list assignment index out of range");
@@ -739,9 +735,7 @@ list_ass_item(PyListObject *a, Py_ssize_t i, PyObject *v)
if (v == NULL)
return list_ass_slice(a, i, i+1, v);
Py_INCREF(v);
- old_value = a->ob_item[i];
- a->ob_item[i] = v;
- Py_DECREF(old_value);
+ Py_SETREF(a->ob_item[i], v);
return 0;
}
@@ -804,7 +798,7 @@ listextend(PyListObject *self, PyObject *b)
Py_RETURN_NONE;
}
m = Py_SIZE(self);
- if (list_resize(self, m + n) == -1) {
+ if (list_resize(self, m + n) < 0) {
Py_DECREF(b);
return NULL;
}
@@ -832,7 +826,7 @@ listextend(PyListObject *self, PyObject *b)
/* Guess a result list size. */
n = PyObject_LengthHint(b, 8);
- if (n == -1) {
+ if (n < 0) {
Py_DECREF(it);
return NULL;
}
@@ -840,7 +834,7 @@ listextend(PyListObject *self, PyObject *b)
mn = m + n;
if (mn >= m) {
/* Make room. */
- if (list_resize(self, mn) == -1)
+ if (list_resize(self, mn) < 0)
goto error;
/* Make the list sane again. */
Py_SIZE(self) = m;