From c35cbf038d0992887b8d4bcf5d4ff83c323ec60c Mon Sep 17 00:00:00 2001
From: David Robillard <d@drobilla.net>
Date: Sun, 8 Dec 2019 18:03:43 +0100
Subject: Cleanup: Avoid parameter copying overhead

---
 src/server/GraphImpl.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'src/server/GraphImpl.cpp')

diff --git a/src/server/GraphImpl.cpp b/src/server/GraphImpl.cpp
index c00819c2..db1b4561 100644
--- a/src/server/GraphImpl.cpp
+++ b/src/server/GraphImpl.cpp
@@ -271,7 +271,7 @@ GraphImpl::remove_block(BlockImpl& block)
 }
 
 void
-GraphImpl::add_arc(SPtr<ArcImpl> a)
+GraphImpl::add_arc(const SPtr<ArcImpl>& a)
 {
 	ThreadManager::assert_thread(THREAD_PRE_PROCESS);
 	_arcs.emplace(std::make_pair(a->tail(), a->head()), a);
-- 
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