Add the OpenFOAM source tree

applications/test/Hashing/Test-Hashing.C

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+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 2011 OpenFOAM Foundation
+     \\/     M anipulation  |
+-------------------------------------------------------------------------------
+License
+    This file is part of OpenFOAM.
+
+    OpenFOAM is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+    for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
+
+Application
+    testHashing
+
+Description
+
+\*---------------------------------------------------------------------------*/
+
+#include "IOstreams.H"
+#include "IOobject.H"
+#include "IFstream.H"
+
+#include "stringList.H"
+#include "labelList.H"
+#include "labelPair.H"
+#include "edgeList.H"
+#include "triFaceList.H"
+
+#include "Hash.H"
+
+using namespace Foam;
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+//  Main program:
+
+int main(int argc, char *argv[])
+{
+    IFstream is("hashingTests");
+
+
+    while (is.good())
+    {
+        const word listType(is);
+
+        Info<< endl;
+        IOobject::writeDivider(Info) << listType << endl;
+
+        if (listType == "stringList")
+        {
+            Info<< "contiguous = " << contiguous<string>() << endl << endl;
+
+            stringList lst(is);
+
+            forAll(lst, i)
+            {
+                unsigned hash1 = string::hash()(lst[i]);
+
+                Info<< hex << hash1 << ": " << lst[i] << endl;
+            }
+
+        }
+        else if (listType == "labelList")
+        {
+            Info<<"contiguous = " << contiguous<label>() << endl << endl;
+
+            labelList lst(is);
+
+            forAll(lst, i)
+            {
+                // direct value
+                unsigned hash1 = Hash<label>()(lst[i]);
+
+                // hashed byte-wise
+                unsigned hash2 = Hash<label>()(lst[i], 0);
+
+                Info<< hex << hash1
+                    << " (seeded: " << hash2 << ")"
+                    << ": " << dec << lst[i] << endl;
+            }
+
+            if (contiguous<label>())
+            {
+                unsigned hash3 = Hasher
+                (
+                    lst.cdata(),
+                    lst.size() * sizeof(label)
+                );
+
+                Info<<"contiguous hashed value " << hex << hash3 << endl;
+            }
+        }
+        else if (listType == "labelListList")
+        {
+            List< List<label> > lst(is);
+
+            forAll(lst, i)
+            {
+                unsigned hash1 = Hasher
+                (
+                    lst[i].cdata(),
+                    lst[i].size() * sizeof(label)
+                );
+
+                Info<< hex << hash1
+                    << ": " << dec << lst[i] << endl;
+            }
+
+        }
+        else if (listType == "edgeList")
+        {
+            Info<<"contiguous = " << contiguous<edge>() << endl << endl;
+
+            edgeList lst(is);
+
+            forAll(lst, i)
+            {
+                unsigned hash1 = Hash<edge>()(lst[i]);
+
+                // as FixedList
+                unsigned hash2 = labelPair::Hash<>()(lst[i]);
+
+                Info<< hex << hash1 << " (as FixedList: " << hash2
+                    << "): " << dec << lst[i] << endl;
+            }
+        }
+        else if (listType == "triFaceList")
+        {
+            Info<<"contiguous = " << contiguous<triFace>() << endl << endl;
+
+            triFaceList lst(is);
+
+            forAll(lst, i)
+            {
+                // direct value
+                unsigned hash1 = Hash<triFace>()(lst[i]);
+                unsigned hash2 = FixedList<label, 3>::Hash<>()(lst[i]);
+
+                Info<< hex << hash1 << " (as FixedList: " << hash2
+                    << "): " << dec << lst[i] << endl;
+            }
+        }
+        else
+        {
+            Info<< "unknown type: " << listType << endl;
+        }
+
+    }
+
+    return 0;
+}
+
+
+// ************************************************************************* //