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extern/stdcxx/4.2.1/examples/manual/map.cpp

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+/**************************************************************************
+ *
+ * map.cpp - Example program of map.
+ *
+ * $Id: map.cpp 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.
+ * 
+ **************************************************************************/
+
+#include <iostream>    // for cout
+#include <map>         // for map
+#include <string>      // for string
+#include <utility>     // for pair
+
+#include <examples.h>
+
+
+typedef std::map<std::string, int, std::less<std::string>,
+                 std::allocator<std::pair<const std::string, int> > >
+months_type;
+
+
+// Print out a map.
+inline std::ostream&
+operator<< (std::ostream &out, const months_type &m)
+{
+    for (months_type::const_iterator it = m.begin (); it != m.end (); ++it)
+        std::cout << (*it).first << " has " << (*it).second << " days\n";
+
+    return out;
+}
+
+
+int main ()
+{
+    // Create a map of months and the number of days in the month.
+    months_type months;
+
+    typedef months_type::value_type value_type;
+
+    // Put the months in the multimap.
+    months.insert (value_type (std::string ("January"),   31));
+    months.insert (value_type (std::string ("Febuary"),   28));
+    months.insert (value_type (std::string ("Febuary"),   29));
+    months.insert (value_type (std::string ("March"),     31));
+    months.insert (value_type (std::string ("April"),     30));
+    months.insert (value_type (std::string ("May"),       31));
+    months.insert (value_type (std::string ("June"),      30));
+    months.insert (value_type (std::string ("July"),      31));
+    months.insert (value_type (std::string ("August"),    31));
+    months.insert (value_type (std::string ("September"), 30));
+    months.insert (value_type (std::string ("October"),   31));
+    months.insert (value_type (std::string ("November"),  30));
+    months.insert (value_type (std::string ("December"),  31));
+
+    // Print out the months.  Second Febuary is not present.
+    std::cout << months << std::endl;
+
+    // Find the Number of days in June.
+    months_type::iterator p = months.find (std::string ("June"));
+
+    // Print out the number of days in June.
+    if (p != months.end ())
+        std::cout << std::endl << (*p).first << " has "
+                  << (*p).second << " days\n";
+  
+    return 0;
+}