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c++/Others/FindMax.cpp - Function template FindMax (Figs 1.17 and 1.18).cpp

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+FindMax.cpp - Function template FindMax (Figs 1.17 and 1.18)
+	
+	#include <iostream.h>
+        #include "mystring.h"
+        #include "vector.h"
+        #include "IntCell.h"
+        // Figures 1.17 and 1.18, but with illegalities commented out
+
+
+        /**
+         * Return the maximum item in array a.
+         * Assumes a.size( ) > 0.
+         * Comparable objects must provide
+         *   copy constructor, operator<, operator=
+         */
+        template <class Comparable>
+        const Comparable & findMax( const vector<Comparable> & a )
+        {
+/* 1*/      int maxIndex = 0;
+
+/* 2*/      for( int i = 1; i < a.size( ); i++ )
+/* 3*/          if( a[ maxIndex ] < a[ i ] )
+/* 4*/              maxIndex = i;
+/* 5*/      return a[ maxIndex ];
+        }
+
+        int main( )
+        {
+            vector<int>     v1( 37 );
+            vector<double>  v2( 40 );
+            vector<string>  v3( 80 );
+//          vector<IntCell> v4( 75 );
+
+            // Additional code to fill in the vectors
+
+            cout << findMax( v1 ) << endl;  // OK: Comparable = int
+            cout << findMax( v2 ) << endl;  // OK: Comparable = double
+            cout << findMax( v3 ) << endl;  // OK: Comparable = string
+//          cout << findMax( v4 ) << endl;  // Illegal; operator< undefined
+
+            return 0;
+        };