C++ is a unique language in the way that it provides access to low-level details such as addresses of variables. We can take the address of any variable declared in the program using the & operator as shown:
int answer = 42;std::cout << &answer;
This code will output something similar to this:
0x7ffee1bd2adc
Notice the hexadecimal representation of the address. Although this value is just an integer, it is used to store in a special variable called a pointer. A pointer is just a variable that is able to store address values and supports the * operator (dereferencing), allowing us to find the actual value stored at the address.
For example, to store the address of the variable answer in the preceding example, we can declare a pointer ...
