Can any explain about this pointer in c++.with an simple example

Question

this keyword

Answer 1

class Test {
int num;
Test(int num) {this->num = num;};
bool test(int n) {return num == n;};
};

Because the overloading of num, the usage of this was required in the constructor to store the argument into the new object. In the test function, num isn't overloaded so I can optionally drop the this ('return this->num == n;' would work as well.)

Answer 2

thanks...for answering