From 33613a85afc4b1481367fbe92a17ee59c240250b Mon Sep 17 00:00:00 2001
From: Sven Eisenhauer <sven@sven-eisenhauer.net>
Date: Fri, 10 Nov 2023 15:11:48 +0100
Subject: add new repo

---
 Bachelor/Prog1/examples/ch08/Fig08_03/Fig08_03.cpp | 89 ++++++++++++++++++++++
 1 file changed, 89 insertions(+)
 create mode 100644 Bachelor/Prog1/examples/ch08/Fig08_03/Fig08_03.cpp

(limited to 'Bachelor/Prog1/examples/ch08/Fig08_03/Fig08_03.cpp')

diff --git a/Bachelor/Prog1/examples/ch08/Fig08_03/Fig08_03.cpp b/Bachelor/Prog1/examples/ch08/Fig08_03/Fig08_03.cpp
new file mode 100644
index 0000000..ac5e434
--- /dev/null
+++ b/Bachelor/Prog1/examples/ch08/Fig08_03/Fig08_03.cpp
@@ -0,0 +1,89 @@
+// Fig. 8.3: fig08_03.cpp
+// Overloading the stream-insertion and 
+// stream-extraction operators.
+#include <iostream>
+
+using std::cout;
+using std::cin;
+using std::endl;
+using std::ostream;
+using std::istream;
+
+#include <iomanip>
+
+using std::setw;
+
+// PhoneNumber class definition
+class PhoneNumber {
+   friend ostream &operator<<( ostream&, const PhoneNumber & );
+   friend istream &operator>>( istream&, PhoneNumber & );
+
+private:
+   char areaCode[ 4 ];  // 3-digit area code and null
+   char exchange[ 4 ];  // 3-digit exchange and null
+   char line[ 5 ];      // 4-digit line and null
+
+}; // end class PhoneNumber
+
+// overloaded stream-insertion operator; cannot be 
+// a member function if we would like to invoke it with
+// cout << somePhoneNumber;
+ostream &operator<<( ostream &output, const PhoneNumber &num )
+{
+   output << "(" << num.areaCode << ") "
+          << num.exchange << "-" << num.line;
+
+   return output;     // enables cout << a << b << c;
+
+} // end function operator<< 
+
+// overloaded stream-extraction operator; cannot be 
+// a member function if we would like to invoke it with
+// cin >> somePhoneNumber;
+istream &operator>>( istream &input, PhoneNumber &num )
+{
+   input.ignore();                     // skip (
+   input >> setw( 4 ) >> num.areaCode; // input area code
+   input.ignore( 2 );                  // skip ) and space
+   input >> setw( 4 ) >> num.exchange; // input exchange
+   input.ignore();                     // skip dash (-)
+   input >> setw( 5 ) >> num.line;     // input line
+
+   return input;      // enables cin >> a >> b >> c;
+
+} // end function operator>> 
+
+int main()
+{
+   PhoneNumber phone; // create object phone
+
+   cout << "Enter phone number in the form (123) 456-7890:\n";
+
+   // cin >> phone invokes operator>> by implicitly issuing
+   // the non-member function call operator>>( cin, phone )
+   cin >> phone;
+
+   cout << "The phone number entered was: ";
+
+   // cout << phone invokes operator<< by implicitly issuing 
+   // the non-member function call operator<<( cout, phone )
+   cout << phone << endl;
+
+   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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