Question

C++

1. How do functions facilitate modular programming? 2. What does a function prototype do? 3. What does "calling" a function mean? 4. If you have two or more functions with the same name, what has to be true of them? 5. How would you explain the difference between pass-by-value and pass-by-reference?

Answer 1

1. Modular programming means dividing our code or logic into small chunks. Functions facilitate this because each function can be used to divide the logic. So each function performs some particular operation.

2. Function prototype means declaring a function that includes the function name, it's signature.

3. Calling a function means telling a function to execute my passing required or no arguments to it.

4. If the arguments are different the function with particular arguments is called.

5. Pass-by-value does not change the value of the formal argument where the latter changes the argument values when the function call is made.

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