From 21ea21ef6db731a8cac14fcd0c1a12c5c44496f4 Mon Sep 17 00:00:00 2001
From: Victor Stinner <victor.stinner@gmail.com>
Date: Mon, 4 Nov 2013 11:28:26 +0100
Subject: [PATCH] Issue #19424: PyUnicode_CompareWithASCIIString() normalizes
 memcmp() result to -1, 0, 1

---
 Objects/unicodeobject.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/Objects/unicodeobject.c b/Objects/unicodeobject.c
index 154103dfea3..574b57a259f 100644
--- a/Objects/unicodeobject.c
+++ b/Objects/unicodeobject.c
@@ -10584,8 +10584,12 @@ PyUnicode_CompareWithASCIIString(PyObject* uni, const char* str)
 
         len = Py_MIN(len1, len2);
         cmp = memcmp(data, str, len);
-        if (cmp != 0)
-            return cmp;
+        if (cmp != 0) {
+            if (cmp < 0)
+                return -1;
+            else
+                return 1;
+        }
         if (len1 > len2)
             return 1; /* uni is longer */
         if (len2 > len1)