From f0fc4f82af48c1d6140de7ef4be19bc336aa5b46 Mon Sep 17 00:00:00 2001
From: Frank Dellaert <dellaert@gmail.com>
Date: Mon, 6 Feb 2023 08:40:40 -0800
Subject: [PATCH] Add missing header

---
 gtsam/hybrid/tests/testHybridEstimation.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/gtsam/hybrid/tests/testHybridEstimation.cpp b/gtsam/hybrid/tests/testHybridEstimation.cpp
index 5f6462b68..28f47232b 100644
--- a/gtsam/hybrid/tests/testHybridEstimation.cpp
+++ b/gtsam/hybrid/tests/testHybridEstimation.cpp
@@ -37,6 +37,8 @@
 
 #include "Switching.h"
 
+#include <bitset>
+
 using namespace std;
 using namespace gtsam;