From a278ae19b4daa1deb11e2a8eed38838027e90ece Mon Sep 17 00:00:00 2001
From: "Miss Islington (bot)"
 <31488909+miss-islington@users.noreply.github.com>
Date: Mon, 30 Dec 2019 18:51:18 -0800
Subject: [PATCH] closes bpo-37446: resolve undefined behavior in Python/hamt.c
 (GH-17727)
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(cherry picked from commit d0c92e81aa2171228a23cb2bed36f7dab975257d)

Co-authored-by: Batuhan Taşkaya <47358913+isidentical@users.noreply.github.com>
---
 Python/hamt.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Python/hamt.c b/Python/hamt.c
index 38412596a37..5efc8d7fabe 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;