C++ Practicing some example problems and need help with these. Any help with exp

ID: 3811107 • Letter: C

Question

C++ Practicing some example problems and need help with these. Any help with explenations would be greatly appreciated!!

1- Given the function prototype void fun1(int &, double); is the following function call valid or invalid? Why or why not?

double x, y;

// initialization code of x and y //

fun1(x, y);

2- Given the function prototype void fun1(int &, double); is the following function call valid or invalid? Why or why not?

double x, y;

// initialization code of x and y //

fun1(static_cast<int>(x), 3);

3- Given the function prototype void fun1(int &, double); is the following function call valid or invalid? Why or why not?

int x, y;

// initialization code of x and y //

fun1(x, y);

4- Given the function prototype void fun1(int &, double); is the following function call valid or invalid? Why or why not?

int x, y;

double z;

// initialization code of x, y and z //

fun1(x + y, z);

5- Given the function prototype double fun2(int , double); is the following function call valid or invalid? Why or why not?

double x, y;

// initialization code of x and y //

fun2(x, fun2(x, y));

1) The function call is invalid. The function definition takes a integer pointer and a double, we cannot pass two double values to it.

2) Again the function call valid.

3) The function call is invalid. The function definition takes a integer pointer and a double, we cannot pass two integers to it.

4) The function call is invalid. The function definition takes a integer pointer and a double, we cannot pass two integers to it.

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