Index
References
In C++, a reference is an alias, or an alternative name, for an existing object. References provide a way to access an object using a different name. Unlike pointers, references cannot be reassigned to refer to a different object after initialization, making them safer and more convenient in many cases.
string food = "Burger"; // food variable
string &meal = food; // reference to food
Example:
#include <iostream>
#include <string>
using namespace std;
int main() {
string food = "Burger";
string &meal = food;
cout << food << "\n";
cout << meal << "\n";
return 0;
}
Output:
Burger
Burger
Memory Address
In C++, you can obtain the memory address of a variable using the address-of operator (&). This operator returns the memory address of the variable it precedes. Memory addresses are represented in hexadecimal format.
Example:
#include <iostream>
#include <string>
using namespace std;
int main() {
string food = "Burger";
cout << &food;
return 0;
}
Output:
0x7ffc188f66b0
