From 82f328b80800cdd75f09aa514353d5c58b12759e Mon Sep 17 00:00:00 2001
From: Varun Agrawal <varagrawal@gmail.com>
Date: Thu, 20 Oct 2022 15:43:29 -0400
Subject: [PATCH] expose DiscreteKeysAsSet as a function

---
 gtsam/hybrid/GaussianMixture.cpp | 1 -
 gtsam/hybrid/GaussianMixture.h   | 3 +++
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/gtsam/hybrid/GaussianMixture.cpp b/gtsam/hybrid/GaussianMixture.cpp
index 5172a9798..fa0cc189b 100644
--- a/gtsam/hybrid/GaussianMixture.cpp
+++ b/gtsam/hybrid/GaussianMixture.cpp
@@ -129,7 +129,6 @@ void GaussianMixture::print(const std::string &s,
 }
 
 /* ************************************************************************* */
-/// Return the DiscreteKey vector as a set.
 std::set<DiscreteKey> DiscreteKeysAsSet(const DiscreteKeys &dkeys) {
   std::set<DiscreteKey> s;
   s.insert(dkeys.begin(), dkeys.end());
diff --git a/gtsam/hybrid/GaussianMixture.h b/gtsam/hybrid/GaussianMixture.h
index 9792a8532..7c1cde4cf 100644
--- a/gtsam/hybrid/GaussianMixture.h
+++ b/gtsam/hybrid/GaussianMixture.h
@@ -162,6 +162,9 @@ class GTSAM_EXPORT GaussianMixture
   Sum add(const Sum &sum) const;
 };
 
+/// Return the DiscreteKey vector as a set.
+std::set<DiscreteKey> DiscreteKeysAsSet(const DiscreteKeys &dkeys);
+
 // traits
 template <>
 struct traits<GaussianMixture> : public Testable<GaussianMixture> {};