Quiz on Function in C++

What is a function in C++?

Which of the following is the correct way to declare a function in C++?

What is the purpose of the return type in a function declaration?

What is the default return type if not specified in a function?

int add(int x, int y) {
return x + y;
}

cout << add(5, 3);

What does the void keyword indicate in a function declaration?

int add(int a, int b) {
return a + b;
}

What will happen if the return type is omitted in a function that is supposed to return a value?

Which keyword is used to pass arguments to a function by reference in C++?

What is the correct syntax to define a function that takes no parameters and returns no value in C++?