From 92b3272823eaa74a3d8a08bde6d8a2dedb1543c9 Mon Sep 17 00:00:00 2001
From: Varun Agrawal <varagrawal@gmail.com>
Date: Sat, 26 Oct 2024 18:08:43 -0400
Subject: [PATCH] make shared_ptr a reference

---
 gtsam/linear/PCGSolver.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gtsam/linear/PCGSolver.h b/gtsam/linear/PCGSolver.h
index 42bb3fccc..17cc2d3db 100644
--- a/gtsam/linear/PCGSolver.h
+++ b/gtsam/linear/PCGSolver.h
@@ -42,7 +42,7 @@ struct GTSAM_EXPORT PCGSolverParameters : public ConjugateGradientParameters {
   PCGSolverParameters() {}
 
   PCGSolverParameters(
-      const std::shared_ptr<PreconditionerParameters> preconditioner)
+      const std::shared_ptr<PreconditionerParameters> &preconditioner)
       : preconditioner(preconditioner) {}
 
   void print(std::ostream &os) const override;