From: Wolfgang Bangerth <bangerth@colostate.edu>
Date: Wed, 7 Jul 2021 23:11:55 +0000 (-0600)
Subject: Don't use references where necessary.
X-Git-Tag: v9.4.0-rc1~1153^2
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=refs%2Fpull%2F12551%2Fhead;p=dealii.git

Don't use references where necessary.
---

diff --git a/include/deal.II/base/bounding_box.h b/include/deal.II/base/bounding_box.h
index 045a2a0f21..2964fef076 100644
--- a/include/deal.II/base/bounding_box.h
+++ b/include/deal.II/base/bounding_box.h
@@ -218,7 +218,7 @@ public:
    * an assertion.
    */
   void
-  extend(const Number &amount);
+  extend(const Number amount);
 
   /**
    * Compute the volume (i.e. the dim-dimensional measure) of the BoundingBox.
@@ -487,7 +487,7 @@ operator!=(const BoundingBox<spacedim, Number> &box) const
 
 template <int spacedim, typename Number>
 inline void
-BoundingBox<spacedim, Number>::extend(const Number &amount)
+BoundingBox<spacedim, Number>::extend(const Number amount)
 {
   for (unsigned int d = 0; d < spacedim; ++d)
     {
diff --git a/source/base/bounding_box.cc b/source/base/bounding_box.cc
index 30c789d179..bf97f863c4 100644
--- a/source/base/bounding_box.cc
+++ b/source/base/bounding_box.cc
@@ -39,6 +39,8 @@ BoundingBox<spacedim, Number>::point_inside(const Point<spacedim, Number> &p,
   return true;
 }
 
+
+
 template <int spacedim, typename Number>
 void
 BoundingBox<spacedim, Number>::merge_with(
@@ -55,6 +57,8 @@ BoundingBox<spacedim, Number>::merge_with(
     }
 }
 
+
+
 template <int spacedim, typename Number>
 NeighborType
 BoundingBox<spacedim, Number>::get_neighbor_type(