From d0c92e81aa2171228a23cb2bed36f7dab975257d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Batuhan=20Ta=C5=9Fkaya?=
 <47358913+isidentical@users.noreply.github.com>
Date: Tue, 31 Dec 2019 05:31:52 +0300
Subject: [PATCH] closes bpo-37446: resolve undefined behavior in Python/hamt.c
 (GH-17727)

---
 Python/hamt.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Python/hamt.c b/Python/hamt.c
index ea659c800fc..f5586eec5b0 100644
--- a/Python/hamt.c
+++ b/Python/hamt.c
@@ -1864,7 +1864,7 @@ hamt_node_array_without(PyHamtNode_Array *self,
                     continue;
                 }
 
-                bitmap |= 1 << i;
+                bitmap |= 1U << i;
 
                 if (IS_BITMAP_NODE(node)) {
                     PyHamtNode_Bitmap *child = (PyHamtNode_Bitmap *)node;