Question

Would someone please explain to me why I get an “Error: not declared in this scope?”

num and denom are private members of class Rationalnumber.

Thanks!

Rationalnumber::Rationalnumber(){
num = 0;
denom = 1;
int * n = new int;
int * d = new int;
*n = num;
*d = denom;
}

Rationalnumber::~Rationalnumber(){
delete n;
}

Answer 1

Rationalnumber::~Rationalnumber(){
delete n;
}

Is n a member of the class? If not, then it will give error, as n is neither declared in the destructor, nor is it a member of the class.

You’ve declared n in the constructor however, but that is local to the constructor only.The destructor (or any other function) cannot access that variable (which is declared in another function or constructor).