CO311: Introduction to Modern Programming II

Lab Practical #11: April 17, 2000

Please read the entire problem before jumping into the code!

Using the in-class examples and practice test as a guide, continue to modify your Compass class by adding the following characteristics:

• An addition operator for adding two Compass objects together. It will leave the arguments unchanged, but will return a (correctly bounded) Compass object based on their sum.
• A stream-output operator (<<) for the Compass object that will output the date in the apropriate format.
• A static class data member that “remembers” whether your output should be d°m's" or d.ddd°(decimal degrees) format.

e.g.: If you have the following data: 45 degrees, 15 minutes and 0 seconds the output looks like this

decimal degree state	output
off	45°15'0"
on	45.25°

1 minute = 0.0166667 decimal degrees (or 1/60 degree)
1 second = 0.0166667 decimal minutes (or 1/60 minute) = 0.0002777777 decimal minutes (or 1/3600 minute)

Your output functions should use the value stored in the class data member to display output appropriately.

• A class function that can be used to turn decimal degree formatting on and off.
• Inspector functions that each return the degrees, minutes or seconds as an integer.

Update your a driver program to test all the permutations of your class, as you did in the practice test. Your class definition, implementation and driver program should all be in appropriately named, separate files. Submit your copies to the FTP site in a separate folder/directory called P11.

Submissions to the FTP site that are NOT saved in the separate P11 directory will be automatically docked 10 points for failing to follow instructions.