ENH: IOobject: construct as copy with different name

src/OpenFOAM/db/IOobject/IOobject.C

@@ -3,7 +3,7 @@
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     |
     \\  /    A nd           | Copyright (C) 2011-2015 OpenFOAM Foundation
-     \\/     M anipulation  |
+     \\/     M anipulation  | Copyright (C) 2015 OpenCFD Ltd.
 -------------------------------------------------------------------------------
 License
     This file is part of OpenFOAM.
@@ -234,6 +234,25 @@ Foam::IOobject::IOobject
 }
 
 
+Foam::IOobject::IOobject
+(
+    const IOobject& io,
+    const word& name
+)
+:
+    name_(name),
+    headerClassName_(io.headerClassName_),
+    note_(io.note_),
+    instance_(io.instance_),
+    local_(io.local_),
+    db_(io.db_),
+    rOpt_(io.rOpt_),
+    wOpt_(io.wOpt_),
+    registerObject_(io.registerObject_),
+    objState_(io.objState_)
+{}
+
+
 // * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * * * //
 
 Foam::IOobject::~IOobject()

src/OpenFOAM/db/IOobject/IOobject.H

@@ -3,7 +3,7 @@
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     |
     \\  /    A nd           | Copyright (C) 2011-2015 OpenFOAM Foundation
-     \\/     M anipulation  |
+     \\/     M anipulation  | Copyright (C) 2015 OpenCFD Ltd.
 -------------------------------------------------------------------------------
 License
     This file is part of OpenFOAM.
@@ -236,6 +236,13 @@ public:
             bool registerObject=true
         );
 
+        //- Construct as copy resetting name
+        IOobject
+        (
+            const IOobject& io,
+            const word& name
+        );
+
         //- Clone
         Foam::autoPtr<IOobject> clone() const
         {