Lab 2 - Exception Handling

Log into Helios and create a new directory for this lab. Copy genericlist.cpp and lab1main.cpp from last week's lab to this new directory. Add the following exception handling:

• bad_alloc detection in constructors - Take the current constructor bodies and put each body within a try block. Catch the bad_alloc exception if it occurs and set the pointer to NULL and the size to 0.
• Index [] operator with InvalidIndex exception - Add the index operator to the class. The index operator will throw an InvalidIndex object if the index given is less than 0 or greater than size - 1. You will also need to define the InvalidIndex class. To get the lab points, you only need to make an empty exception class. However, if you wish to try more complex exception classes, you can add an integer to the InvalidIndex class to record what the invalid index was and a string what() function to print a message about the exception.
• Call index operator from the main program - In run_tests, add a try block that attempts to print out a[0]. This should trigger the InvalidIndex exception since a is empty. Catch the InvalidIndex exception after the try block.