diff options
Diffstat (limited to 'Bachelor/Prog1/examples/ch07/Fig07_06_10')
5 files changed, 278 insertions, 0 deletions
diff --git a/Bachelor/Prog1/examples/ch07/Fig07_06_10/Date1.cpp b/Bachelor/Prog1/examples/ch07/Fig07_06_10/Date1.cpp new file mode 100644 index 0000000..ef3818b --- /dev/null +++ b/Bachelor/Prog1/examples/ch07/Fig07_06_10/Date1.cpp @@ -0,0 +1,85 @@ +// Fig. 7.7: date1.cpp
+// Member-function definitions for class Date.
+#include <iostream>
+
+using std::cout;
+using std::endl;
+
+// include Date class definition from date1.h
+#include "date1.h"
+
+// constructor confirms proper value for month; calls
+// utility function checkDay to confirm proper value for day
+Date::Date( int mn, int dy, int yr )
+{
+ if ( mn > 0 && mn <= 12 ) // validate the month
+ month = mn;
+
+ else { // invalid month set to 1
+ month = 1;
+ cout << "Month " << mn << " invalid. Set to month 1.\n";
+ }
+
+ year = yr; // should validate yr
+ day = checkDay( dy ); // validate the day
+
+ // output Date object to show when its constructor is called
+ cout << "Date object constructor for date ";
+ print();
+ cout << endl;
+
+} // end Date constructor
+
+// print Date object in form month/day/year
+void Date::print() const
+{
+ cout << month << '/' << day << '/' << year;
+
+} // end function print
+
+// output Date object to show when its destructor is called
+Date::~Date()
+{
+ cout << "Date object destructor for date ";
+ print();
+ cout << endl;
+
+} // end ~Date destructor
+
+// utility function to confirm proper day value based on
+// month and year; handles leap years, too
+int Date::checkDay( int testDay ) const
+{
+ static const int daysPerMonth[ 13 ] =
+ { 0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };
+
+ // determine whether testDay is valid for specified month
+ if ( testDay > 0 && testDay <= daysPerMonth[ month ] )
+ return testDay;
+
+ // February 29 check for leap year
+ if ( month == 2 && testDay == 29 &&
+ ( year % 400 == 0 ||
+ ( year % 4 == 0 && year % 100 != 0 ) ) )
+ return testDay;
+
+ cout << "Day " << testDay << " invalid. Set to day 1.\n";
+
+ return 1; // leave object in consistent state if bad value
+
+} // end function checkDay
+
+/**************************************************************************
+ * (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. *
+ *************************************************************************/
diff --git a/Bachelor/Prog1/examples/ch07/Fig07_06_10/Date1.h b/Bachelor/Prog1/examples/ch07/Fig07_06_10/Date1.h new file mode 100644 index 0000000..5829c71 --- /dev/null +++ b/Bachelor/Prog1/examples/ch07/Fig07_06_10/Date1.h @@ -0,0 +1,39 @@ +// Fig. 7.6: date1.h
+// Date class definition.
+// Member functions defined in date1.cpp
+#ifndef DATE1_H
+#define DATE1_H
+
+class Date {
+
+public:
+ Date( int = 1, int = 1, int = 1900 ); // default constructor
+ void print() const; // print date in month/day/year format
+ ~Date(); // provided to confirm destruction order
+
+private:
+ int month; // 1-12 (January-December)
+ int day; // 1-31 based on month
+ int year; // any year
+
+ // utility function to test proper day for month and year
+ int checkDay( int ) const;
+
+}; // end class Date
+
+#endif
+
+/**************************************************************************
+ * (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. *
+ *************************************************************************/
diff --git a/Bachelor/Prog1/examples/ch07/Fig07_06_10/Employee1.cpp b/Bachelor/Prog1/examples/ch07/Fig07_06_10/Employee1.cpp new file mode 100644 index 0000000..6cc742a --- /dev/null +++ b/Bachelor/Prog1/examples/ch07/Fig07_06_10/Employee1.cpp @@ -0,0 +1,72 @@ +// Fig. 7.9: employee1.cpp
+// Member-function definitions for class Employee.
+#include <iostream>
+
+using std::cout;
+using std::endl;
+
+#include <cstring> // strcpy and strlen prototypes
+
+#include "employee1.h" // Employee class definition
+#include "date1.h" // Date class definition
+
+// constructor uses member initializer list to pass initializer
+// values to constructors of member objects birthDate and
+// hireDate [Note: This invokes the so-called "default copy
+// constructor" which the C++ compiler provides implicitly.]
+Employee::Employee( const char *first, const char *last,
+ const Date &dateOfBirth, const Date &dateOfHire )
+ : birthDate( dateOfBirth ), // initialize birthDate
+ hireDate( dateOfHire ) // initialize hireDateba
+{
+ // copy first into firstName and be sure that it fits
+ int length = strlen( first );
+ length = ( length < 25 ? length : 24 );
+ strncpy( firstName, first, length );
+ firstName[ length ] = '\0';
+
+ // copy last into lastName and be sure that it fits
+ length = strlen( last );
+ length = ( length < 25 ? length : 24 );
+ strncpy( lastName, last, length );
+ lastName[ length ] = '\0';
+
+ // output Employee object to show when constructor is called
+ cout << "Employee object constructor: "
+ << firstName << ' ' << lastName << endl;
+
+} // end Employee constructor
+
+// print Employee object
+void Employee::print() const
+{
+ cout << lastName << ", " << firstName << "\nHired: ";
+ hireDate.print();
+ cout << " Birth date: ";
+ birthDate.print();
+ cout << endl;
+
+} // end function print
+
+// output Employee object to show when its destructor is called
+Employee::~Employee()
+{
+ cout << "Employee object destructor: "
+ << lastName << ", " << firstName << endl;
+
+} // end ~Employee destructor
+
+/**************************************************************************
+ * (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. *
+ *************************************************************************/
diff --git a/Bachelor/Prog1/examples/ch07/Fig07_06_10/Employee1.h b/Bachelor/Prog1/examples/ch07/Fig07_06_10/Employee1.h new file mode 100644 index 0000000..cfc294a --- /dev/null +++ b/Bachelor/Prog1/examples/ch07/Fig07_06_10/Employee1.h @@ -0,0 +1,42 @@ +// Fig. 7.8: employee1.h
+// Employee class definition.
+// Member functions defined in employee1.cpp.
+#ifndef EMPLY1_H
+#define EMPLY1_H
+
+// include Date class definition from date1.h
+#include "date1.h"
+
+class Employee {
+
+public:
+ Employee(
+ const char *, const char *, const Date &, const Date & );
+
+ void print() const;
+ ~Employee(); // provided to confirm destruction order
+
+private:
+ char firstName[ 25 ];
+ char lastName[ 25 ];
+ const Date birthDate; // composition: member object
+ const Date hireDate; // composition: member object
+
+}; // end class Employee
+
+#endif
+
+/**************************************************************************
+ * (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. *
+ *************************************************************************/
diff --git a/Bachelor/Prog1/examples/ch07/Fig07_06_10/Fig07_10.cpp b/Bachelor/Prog1/examples/ch07/Fig07_06_10/Fig07_10.cpp new file mode 100644 index 0000000..90dfc9b --- /dev/null +++ b/Bachelor/Prog1/examples/ch07/Fig07_06_10/Fig07_10.cpp @@ -0,0 +1,40 @@ +// Fig. 7.10: fig07_10.cpp
+// Demonstrating composition--an object with member objects.
+#include <iostream>
+
+using std::cout;
+using std::endl;
+
+#include "employee1.h" // Employee class definition
+
+int main()
+{
+ Date birth( 7, 24, 1949 );
+ Date hire( 3, 12, 1988 );
+ Employee manager( "Bob", "Jones", birth, hire );
+
+ cout << '\n';
+ manager.print();
+
+ cout << "\nTest Date constructor with invalid values:\n";
+ Date lastDayOff( 14, 35, 1994 ); // invalid month and day
+ cout << 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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