Lab 3 - Simple Calculator

PART 1

Define your Calculator class here, the class should have at least the following attribute value, a private member that holds the current result of the calculator add two methods in public

• clear() - will zero the value of the calculator
• display() - will return the current result stored in the calculator

PART 2

the following methods must also be included, all in public

• add()
• subtract()
• multiply()
• divide()
  • make sure that the divide() function can handle errors. Specifically, if a user tries to divide by zero, print an error message and set the result value to zero.

PART 3

create a constructor to give newly declared calculator objects a value

• add a default value of 0 to the constructor.

Setup command

N/A

Run command

make test

In order to test functions individually, you can use the following: make test try={functionName}

For example, to try the subtract() function, you can run: make test try=subtract

*Note that you will need your display() function working before being able to test other functions!

Notes

• g++ can be used to compile and link C++ applications for use with existing test harnesses or other C++ testing frameworks.
• If students push a.out files, the autograder may attempt to run that version instead of a newly compiled binary. If this happens, and your student isn't on Linux, the script will crash. To fix this issue, it's recommended to clean before building.