From: Wolfgang Bangerth <bangerth@colostate.edu>
Date: Thu, 30 Mar 2023 17:52:08 +0000 (-0600)
Subject: Minor performance improvement.
X-Git-Tag: v9.5.0-rc1~388^2
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=fe9414a2e86e443903aa672e4ec0043b1569a32b;p=dealii.git

Minor performance improvement.
---

diff --git a/include/deal.II/grid/cell_id_translator.h b/include/deal.II/grid/cell_id_translator.h
index 9ed01cbfe1..84ee3338d6 100644
--- a/include/deal.II/grid/cell_id_translator.h
+++ b/include/deal.II/grid/cell_id_translator.h
@@ -158,6 +158,7 @@ namespace internal
 #endif
 
     // Now do the whole computation again, but for real:
+    tree_sizes.reserve(n_global_levels + 1);
     tree_sizes.push_back(0);
     for (unsigned int i = 0; i < n_global_levels; ++i)
       tree_sizes.push_back(tree_sizes.back() +