From: Martin v. Löwis <martin@v.loewis.de>
Date: Tue, 15 May 2012 12:34:58 +0000 (+0200)
Subject: Add safecase to silence Win64 warning.
X-Git-Tag: v3.3.0a4~161
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=33cac8578bede2e9d6688ff46e849df7c2897a26;p=python

Add safecase to silence Win64 warning.
---

diff --git a/Modules/itertoolsmodule.c b/Modules/itertoolsmodule.c
index 515f3bafb3..194f7fb5a3 100644
--- a/Modules/itertoolsmodule.c
+++ b/Modules/itertoolsmodule.c
@@ -533,7 +533,8 @@ teedataobject_new(PyTypeObject *type, PyObject *args, PyObject *kw)
         tdo->values[i] = PyList_GET_ITEM(values, i);
         Py_INCREF(tdo->values[i]);
     }
-    tdo->numread = len;
+    /* len <= LINKCELLS < INT_MAX */
+    tdo->numread = Py_SAFE_DOWNCAST(len, Py_ssize_t, int);
 
     if (len == LINKCELLS) {
         if (next != Py_None) {