From: Raymond Hettinger <python@rcn.com>
Date: Wed, 4 Nov 2015 03:00:26 +0000 (-0500)
Subject: Neaten-up the inner-loop logic.
X-Git-Tag: v3.6.0a1~1129
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=4a91d2138199d28cd906997854cc4632f156bb05;p=python

Neaten-up the inner-loop logic.
---

diff --git a/Modules/_collectionsmodule.c b/Modules/_collectionsmodule.c
index 1ca6c72d37..0e594703d0 100644
--- a/Modules/_collectionsmodule.c
+++ b/Modules/_collectionsmodule.c
@@ -1053,13 +1053,13 @@ deque_index(dequeobject *deque, PyObject *args)
         }
     }
 
-    n = stop - i;
-    while (n--) {
+    n = stop - i + 1;
+    while (--n) {
         CHECK_NOT_END(b);
         item = b->data[index];
         cmp = PyObject_RichCompareBool(item, v, Py_EQ);
         if (cmp > 0)
-            return PyLong_FromSsize_t(stop - (n + 1));
+            return PyLong_FromSsize_t(stop - n);
         if (cmp < 0)
             return NULL;
         if (start_state != deque->state) {