Homework Answers

A function that returns an int can only use int parameters.

True

False

When a function ends, the local variable and parameter variables are destroyed.

True

False

Only one value may be returned from a function.

True

False

Look at the following code and identify what is wrong with it:

void multiply(int, int);

int main() {

  std::cout << "The answer is: " << multiply(num1, num2);

}

void multiply(int a, int b) {

  return a * b;

}

Prototype is missing variable names.

Int parameters should be doubles.

Void functions cannot return a value.

Value-returning functions must be called in a statement that stores the returned value in a variable.

A function with a(n) ___ return type can either return true or false values.

Void

Binary

Bool

Static

Which of the following is NOT one of the reasons why global variables may be a bad idea (according to your author)?

A variable in main() with the same name as a global variable causes compiler and runtime errors.

Global variables make a program hard to understand.

Global variables make debugging difficult.

If you want to use a function in another program and this function depends on a global variable, you will have to redesign it.

___ constants are declared outside all of the functions in a program.

scoped

local

global

parameter