Answers for "cpp operator <"

c++ .* operator

The .* operator is used to dereference pointers to class members.

operators c++

// Operators are simply functions but cooler
// E.g: The + sign is an operator, [] is an operator, you get the point
// Which is even cooler is you can overload them
// Means you can change their behavior
// I can make + actually decrement (dont do this)
int operator+(int other){
	return *this - other;
}
// And make - return always 0
int operator-(int other){ return 0; }
// (THIS IS ANOTHER PROGRAM SO + AND - ARE NOT BROKEN ANYMORE)
#include <iostream>
#include <string>
#include <stdio.h>
#include <vector>
// And then im gonna make a class
class UselessClass{
private:
  	// And have a vector of integers with a bunch of numbers
  	std::vector<int> numbers = {1, 2, 3};
public:
  	// Then im gonna make the array index operator return the int at the index but with 5 added to the int
  	int operator[](int index){
    	return this->numbers[index] + 5;
    }
};
int main(){
    // And then
    UselessClass a;
    std::cout << a[0] << "n";
    // It will print 6
}