From: Barry Warsaw <barry@python.org>
Date: Sat, 20 Jan 2001 06:08:10 +0000 (+0000)
Subject: default_3way_compare(): When comparing the pointers, they must be cast
X-Git-Tag: v2.1a1~87
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=71ff8d5dc5dad320cf71fee03018c5ba4101b683;p=thirdparty%2FPython%2Fcpython.git

default_3way_compare(): When comparing the pointers, they must be cast
to integer types (i.e. Py_uintptr_t, our spelling of C9X's uintptr_t).
ANSI specifies that pointer compares other than == and != to
non-related structures are undefined.  This quiets an Insure
portability warning.
---

diff --git a/Objects/object.c b/Objects/object.c
index 44344f9b2c25..e2a019fdf7ce 100644
--- a/Objects/object.c
+++ b/Objects/object.c
@@ -525,8 +525,8 @@ default_3way_compare(PyObject *v, PyObject *w)
 
 	if (v->ob_type == w->ob_type) {
 		/* same type: compare pointers */
-		void *vv = v;
-		void *ww = w;
+		Py_uintptr_t vv = (Py_uintptr_t)v;
+		Py_uintptr_t ww = (Py_uintptr_t)w;
 		return (vv < ww) ? -1 : (vv > ww) ? 1 : 0;
 	}