From: Daniel Arndt <arndtd@ornl.gov>
Date: Mon, 26 Aug 2019 22:33:42 +0000 (-0400)
Subject: Reserve space for constrained indices
X-Git-Tag: v9.2.0-rc1~1159^2
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=refs%2Fpull%2F8646%2Fhead;p=dealii.git

Reserve space for constrained indices
---

diff --git a/include/deal.II/lac/affine_constraints.templates.h b/include/deal.II/lac/affine_constraints.templates.h
index 0bebac51bd..4670b160ae 100644
--- a/include/deal.II/lac/affine_constraints.templates.h
+++ b/include/deal.II/lac/affine_constraints.templates.h
@@ -1905,6 +1905,7 @@ namespace internal
     {
       Assert(shift == 0, ExcNotImplemented());
       std::vector<size_type> constrained_local_dofs_host;
+      constrained_local_dofs_host.reserve(cm.size());
 
       for (const auto global_index : cm)
         if (vec.in_local_range(global_index))