From: Daniel Arndt <arndtd@ornl.gov>
Date: Tue, 20 Jun 2023 21:19:47 +0000 (-0400)
Subject: Use a reference to a const value in one place
X-Git-Tag: relicensing~757^2~3
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d2c5358df89c491c81a9da4d0dc5d316b1715e17;p=dealii.git

Use a reference to a const value in one place
---

diff --git a/include/deal.II/base/index_set.h b/include/deal.II/base/index_set.h
index c9abbddc7a..7e803b8ec3 100644
--- a/include/deal.II/base/index_set.h
+++ b/include/deal.II/base/index_set.h
@@ -1831,8 +1831,8 @@ IndexSet::n_elements() const
   size_type v = 0;
   if (!ranges.empty())
     {
-      Range &r = ranges.back();
-      v        = r.nth_index_in_set + r.end - r.begin;
+      const Range &r = ranges.back();
+      v              = r.nth_index_in_set + r.end - r.begin;
     }
 
 #ifdef DEBUG