don't do pointer arithmetic with signed numbers

b685512e · Benjamin Peterson · 5c88845b · b685512e
Commit b685512e authored Mar 14, 2014 by Benjamin Peterson
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Objects/longobject.c Objects/longobject.c +2 -1

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--- a/Objects/longobject.c
+++ b/Objects/longobject.c
@@ -36,7 +36,8 @@ Py_ssize_t quick_int_allocs, quick_neg_int_allocs;
 static PyObject *
 get_small_int(sdigit ival)
 {
-    PyObject *v = (PyObject*)(small_ints + ival + NSMALLNEGINTS);
+    assert(-NSMALLNEGINTS <= ival && ival < NSMALLPOSINTS);
+    PyObject *v = (PyObject *)&small_ints[ival + NSMALLNEGINTS];
    Py_INCREF(v);
 #ifdef COUNT_ALLOCS
    if (ival >= 0)