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

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+/**************************************************************************
+ *
+ * widwork.h - header for widget works, from Chapter 6.3
+ *
+ ***************************************************************************
+ *
+ * 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 WIDWORK_H_INCLUDED
+#define WIDWORK_H_INCLUDED
+
+#include <list>
+#include <functional>
+#include <iostream>
+    
+class  Widget {
+public:
+    Widget (int a = 0) : id (a)
+        { }
+
+    void operator= (const Widget& rhs) {
+        id = rhs.id;
+    }
+
+    friend std::ostream& operator<< ( std::ostream&, const Widget& );
+    int id;
+};
+
+typedef std::list<Widget, std::allocator<Widget> > widgetList;
+typedef std::list<int, std::allocator<int> >       idList;
+
+struct WidgetTester : std::binary_function<Widget, int, bool> 
+{
+public:
+    bool operator () (const Widget & wid, int testid) const;
+};
+
+class inventory 
+{
+public:
+    void order (int wid);   // Process order for widget type wid.
+    void receive (int wid); // Receive widget of type wid in shipment.
+
+private:
+    widgetList on_hand;
+    idList     on_order;
+};
+
+
+#endif   // WIDWORK_H_INCLUDED