Added PyOS_CheckStack call to PyObject_Compare
Lowered the recursion limit on compares to 60 (one recursion depth can
take a whopping 2K of stack space when running test_b1!)
diff --git a/Objects/object.c b/Objects/object.c
index f61a1dd..1f02aae 100644
--- a/Objects/object.c
+++ b/Objects/object.c
@@ -11,6 +11,9 @@
/* Generic object operations; and implementation of None (NoObject) */
#include "Python.h"
+#ifdef HAVE_LIMITS_H
+#include <limits.h>
+#endif
#ifdef macintosh
#include "macglue.h"
@@ -339,7 +342,11 @@
some types) and decremented on exit. If the count exceeds the
nesting limit, enable code to detect circular data structures.
*/
+#ifdef macintosh
+#define NESTING_LIMIT 60
+#else
#define NESTING_LIMIT 500
+#endif
int _PyCompareState_nesting = 0;
static PyObject*
@@ -394,6 +401,12 @@
PyTypeObject *vtp, *wtp;
int result;
+#if defined(USE_STACKCHECK)
+ if (PyOS_CheckStack() < 0) {
+ PyErr_SetString(PyExc_MemoryError, "Stack overflow");
+ return -1;
+ }
+#endif
if (v == NULL || w == NULL) {
PyErr_BadInternalCall();
return -1;