diff options
Diffstat (limited to 'Bachelor/Prog1/examples/ch07/Fig07_05/Fig07_05.cpp')
| -rw-r--r-- | Bachelor/Prog1/examples/ch07/Fig07_05/Fig07_05.cpp | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/Bachelor/Prog1/examples/ch07/Fig07_05/Fig07_05.cpp b/Bachelor/Prog1/examples/ch07/Fig07_05/Fig07_05.cpp new file mode 100644 index 0000000..f7945b4 --- /dev/null +++ b/Bachelor/Prog1/examples/ch07/Fig07_05/Fig07_05.cpp @@ -0,0 +1,74 @@ +// Fig. 7.5: fig07_05.cpp
+// Attempting to initialize a constant of
+// a built-in data type with an assignment.
+#include <iostream>
+
+using std::cout;
+using std::endl;
+
+class Increment {
+
+public:
+ Increment( int c = 0, int i = 1 ); // default constructor
+
+ void addIncrement()
+ {
+ count += increment;
+
+ } // end function addIncrement
+
+ void print() const; // prints count and increment
+
+private:
+ int count;
+ const int increment; // const data member
+
+}; // end class Increment
+
+// constructor
+Increment::Increment( int c, int i )
+{ // Constant member 'increment' is not initialized
+ count = c; // allowed because count is not constant
+ increment = i; // ERROR: Cannot modify a const object
+
+} // end constructor Increment
+
+// print count and increment values
+void Increment::print() const
+{
+ cout << "count = " << count
+ << ", increment = " << increment << endl;
+
+} // end function print
+
+int main()
+{
+ Increment value( 10, 5 );
+
+ cout << "Before incrementing: ";
+ value.print();
+
+ for ( int j = 0; j < 3; j++ ) {
+ value.addIncrement();
+ cout << "After increment " << j + 1 << ": ";
+ value.print();
+ }
+
+ return 0;
+
+} // end main
+
+/**************************************************************************
+ * (C) Copyright 1992-2003 by Deitel & Associates, Inc. and Prentice *
+ * Hall. All Rights Reserved. *
+ * *
+ * DISCLAIMER: The authors and publisher of this book have used their *
+ * best efforts in preparing the book. These efforts include the *
+ * development, research, and testing of the theories and programs *
+ * to determine their effectiveness. The authors and publisher make *
+ * no warranty of any kind, expressed or implied, with regard to these *
+ * programs or to the documentation contained in these books. The authors *
+ * and publisher shall not be liable in any event for incidental or *
+ * consequential damages in connection with, or arising out of, the *
+ * furnishing, performance, or use of these programs. *
+ *************************************************************************/
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