How can I permanently change a class's member?

Question

I have a class, Hero, with a public health member and a takeHit function, like this:

class Hero {
public:
Hero(int hp) :
health(hp)
{
}

int takeHit(int damage) {
health = health - damage;
return health;
}
};

int main() {

Hero superhero(120);
superhero.takeHit(20);

cout << superhero.health << endl;

return 0;
}

The problem is, the value returned by the function is correct, but when I cout superhero.health, it outputs the initial value of health. How can I permanently change the health member?

Answer 1

Sorry, I thought that example would behave the same way my real problem code does. Here is the code that's actually causing the problem
https://code.sololearn.com/c2596vrjm5c8/?ref=app

Answer 2

jacksonofgames 28 , with your code, I expected to health to be 100 (120-20) and it does print 100 when I checked on code playground.... what is issue I don't get... it is not printing initial value 120...

Answer 3

class Hero {
public:

int health;

Hero(int hp){
(*this).health=hp;
}

void takeHit(int damage) {
(*this).health = (*this).health - damage;
}
};

#include <iostream>
using namespace std;

int main() {

Hero superhero(120);
superhero.takeHit(20);

cout << superhero.health << endl;

return 0;
}

Changed it a bit, prints out 100 for me :P