From 3565b5491f77bcc40a0981b918e9ee1ae19d64bd Mon Sep 17 00:00:00 2001
From: Henry Weller <http://cfd.direct>
Date: Mon, 23 May 2016 12:01:36 +0100
Subject: [PATCH] tmp: Added 'move' constructor to simplify return of unchanged
 'tmp' arguments.

---
 src/OpenFOAM/memory/tmp/tmp.H  |  3 +++
 src/OpenFOAM/memory/tmp/tmpI.H | 13 +++++++++++++
 2 files changed, 16 insertions(+)

diff --git a/src/OpenFOAM/memory/tmp/tmp.H b/src/OpenFOAM/memory/tmp/tmp.H
index 6a145158a7..5448b2533e 100644
--- a/src/OpenFOAM/memory/tmp/tmp.H
+++ b/src/OpenFOAM/memory/tmp/tmp.H
@@ -92,6 +92,9 @@ public:
         //- Construct copy and increment reference count
         inline tmp(const tmp<T>&);
 
+        //- Construct copy moving content, does not increment reference count
+        inline tmp(const tmp<T>&&);
+
         //- Construct copy transferring content of temporary if required
         inline tmp(const tmp<T>&, bool allowTransfer);
 
diff --git a/src/OpenFOAM/memory/tmp/tmpI.H b/src/OpenFOAM/memory/tmp/tmpI.H
index e08214bcd1..70a4dc2b7f 100644
--- a/src/OpenFOAM/memory/tmp/tmpI.H
+++ b/src/OpenFOAM/memory/tmp/tmpI.H
@@ -91,6 +91,19 @@ inline Foam::tmp<T>::tmp(const tmp<T>& t)
 }
 
 
+template<class T>
+inline Foam::tmp<T>::tmp(const tmp<T>&& t)
+:
+    type_(t.type_),
+    ptr_(t.ptr_)
+{
+    if (isTmp())
+    {
+        t.ptr_ = 0;
+    }
+}
+
+
 template<class T>
 inline Foam::tmp<T>::tmp(const tmp<T>& t, bool allowTransfer)
 :