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extern/stdcxx/4.2.1/examples/include/alg3.h

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+/**************************************************************************
+ *
+ * alg3.h - Header for sample programs for STL generic algorihtms
+ *          that modify their arguments in place.
+ *
+ * $Id: alg3.h 550991 2007-06-26 23:58:07Z sebor $
+ *
+ ***************************************************************************
+ *
+ * Licensed to the Apache Software  Foundation (ASF) under one or more
+ * contributor  license agreements.  See  the NOTICE  file distributed
+ * with  this  work  for  additional information  regarding  copyright
+ * ownership.   The ASF  licenses this  file to  you under  the Apache
+ * License, Version  2.0 (the  "License"); you may  not use  this file
+ * except in  compliance with the License.   You may obtain  a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the  License is distributed on an  "AS IS" BASIS,
+ * WITHOUT  WARRANTIES OR CONDITIONS  OF ANY  KIND, either  express or
+ * implied.   See  the License  for  the  specific language  governing
+ * permissions and limitations under the License.
+ *
+ * Copyright 1994-2006 Rogue Wave Software.
+ * 
+ **************************************************************************/
+
+#ifndef ALG3_H_INCLUDED
+#define ALG3_H_INCLUDED
+
+#include <rw/_random.h>
+
+class iotaGenerator
+{
+public:
+    iotaGenerator (int iv) : current (iv)
+        { }
+    int operator () () {
+        return current++;
+    }
+private:
+    int current;
+};
+
+
+struct RandomInteger
+{
+    int operator () (int m) {
+        // using a proprietary algorithm
+        return _RW::__rw_random (m);
+    }
+};
+
+#endif   // ALG3_H_INCLUDED