when to use custom destructor in c++ code example
Example: destructor in c++
#include <iostream>
class Entity {
public:
float x, y;
Entity() {
x = 0.0f;
y = 0.0f;
// the above is not a good practice ,instead you can use constructor member initializer list to initialize variables
std::cout << "Created Entity" << std::endl;
std::cout << "x " << x << " y " << y << std::endl;
//This is a constructor and it gets called everytime we instantiate an object
}
~Entity() {
//This is a destructor object it gets called every time object is destroyed or its scope ends
//Note1:that this function can never return anything
//Note2:Followed by this ~ symbol the name of the function must be equal to class name
std::cout << "[Destroyed Entity]" << std::endl;
}
};
int main(){
{
Entity e1;
//here constructor is called and output => Created Entity
//here constructor is called and output => 0,0
}
//here Destructor is called and output => Destroyed Entity
// Destructor will get called here when compiler will get out of the end bracket and the lifetime of object ends
// have a graeater look in debug mode
std::cin.get();
}