Initial Commit - Lesson 31 (Commit #1)

Plugins/GameLiftServerSDK/ThirdParty/concurrentqueue/benchmarks/dlib/interfaces/map_pair.h

@@ -0,0 +1,74 @@
+// Copyright (C) 2003  Davis E. King (davis@dlib.net)
+// License: Boost Software License   See LICENSE.txt for the full license.
+#ifndef DLIB_MAP_PAIr_INTERFACE_
+#define DLIB_MAP_PAIr_INTERFACE_
+
+namespace dlib
+{
+
+// ----------------------------------------------------------------------------------------
+    
+    template <
+        typename T1,
+        typename T2
+        >
+    class map_pair  
+    {
+        /*!
+            POINTERS AND REFERENCES TO INTERNAL DATA
+                None of the functions in map_pair will invalidate
+                pointers or references to internal data when called.
+
+            WHAT THIS OBJECT REPRESENTS
+                this object is used to return the key/value pair used in the 
+                map and hash_map containers when using the enumerable interface.
+
+                note that the enumerable interface is defined in
+                interfaces/enumerable.h
+        !*/
+
+    public:
+        typedef T1 key_type;
+        typedef T2 value_type;
+
+        virtual ~map_pair(
+        )=0;
+
+        virtual const T1& key( 
+        ) const =0;
+        /*!
+            ensures
+                - returns a const reference to the key
+        !*/
+
+        virtual const T2& value(
+        ) const =0;
+        /*!
+            ensures
+                - returns a const reference to the value associated with key
+        !*/
+
+        virtual T2& value(
+        )=0;
+        /*!
+            ensures
+                - returns a non-const reference to the value associated with key
+        !*/
+
+    protected:
+
+        // restricted functions
+        map_pair<T1,T2>& operator=(const map_pair<T1,T2>&) {return *this;} // no assignment operator
+
+    };
+
+    // destructor does nothing
+    template <typename T1,typename T2> 
+    map_pair<T1,T2>::~map_pair () {}
+
+// ----------------------------------------------------------------------------------------
+
+}
+
+#endif // DLIB_MAP_PAIr_INTERFACE_
+