From 679cf7434e1190e40e79da0734c3a1c3d0a44e81 Mon Sep 17 00:00:00 2001
From: Lionel Landwerlin <llandwerlin@gmail.com>
Date: Sat, 18 May 2019 09:43:30 +0100
Subject: [PATCH] Fix undefined behavior (#2561)

---
 imgui_draw.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/imgui_draw.cpp b/imgui_draw.cpp
index 467555cf5..c352db054 100644
--- a/imgui_draw.cpp
+++ b/imgui_draw.cpp
@@ -1779,7 +1779,7 @@ static void UnpackBoolVectorToFlatIndexList(const ImBoolVector* in, ImVector<int
     for (const int* it = it_begin; it < it_end; it++)
         if (int entries_32 = *it)
             for (int bit_n = 0; bit_n < 32; bit_n++)
-                if (entries_32 & (1 << bit_n))
+                if (entries_32 & (1u << bit_n))
                     out->push_back((int)((it - it_begin) << 5) + bit_n);
 }