From 8ecb7d53679c16e3231f1cffac77513dd7f24b4d Mon Sep 17 00:00:00 2001
From: kartik arcot <kartik.arcot@verdantrobotics.com>
Date: Mon, 23 Jan 2023 10:04:39 -0800
Subject: [PATCH] is_same

---
 gtsam/nonlinear/Values.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/gtsam/nonlinear/Values.h b/gtsam/nonlinear/Values.h
index be2df9056..725a2f107 100644
--- a/gtsam/nonlinear/Values.h
+++ b/gtsam/nonlinear/Values.h
@@ -338,7 +338,8 @@ namespace gtsam {
     // supplied \c filter function.
     template<class ValueType>
     static bool filterHelper(const std::function<bool(Key)> filter, const ConstKeyValuePair& key_value) {
-      BOOST_STATIC_ASSERT((!boost::is_same<ValueType, Value>::value));
+      // static_assert if ValueType is not Value
+      static_assert(std::is_same<Value, ValueType>::value, "ValueType must be type: Value");
       // Filter and check the type
       return filter(key_value.key) && (dynamic_cast<const GenericValue<ValueType>*>(&key_value.value));
     }