From 12872aa96cb0232b6564130c2d79e406eb0bd1bd Mon Sep 17 00:00:00 2001
From: Wolfgang Bangerth <bangerth@colostate.edu>
Date: Wed, 23 Mar 2022 11:21:30 -0600
Subject: [PATCH] Avoid a copy of a vector.

---
 source/grid/tria.cc | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/source/grid/tria.cc b/source/grid/tria.cc
index ea2dc6fa2f..1174e3f9f0 100644
--- a/source/grid/tria.cc
+++ b/source/grid/tria.cc
@@ -14642,10 +14642,9 @@ Triangulation<dim, spacedim>::update_reference_cells()
     if (cell->is_locally_owned())
       reference_cells_set.insert(cell->reference_cell());
 
-  std::vector<ReferenceCell> reference_cells(reference_cells_set.begin(),
-                                             reference_cells_set.end());
-
-  this->reference_cells = reference_cells;
+  this->reference_cells =
+    std::vector<ReferenceCell>(reference_cells_set.begin(),
+                               reference_cells_set.end());
 }
 
 
-- 
2.39.5