Value Model vs Reference Model

Value Model vs Reference Model

In programming languages, two different models are used for variables. 

These are: 

Value Model

 A variable contains a value. The name of the variable gives its value. 

Reference Model

A variable contains (say y) refers to another variable (say x) with a value. The variable ‘y’ is used to access the value of ‘x’ indirectly. 

The ‘C’ language is based on value model. However, by using pointers, we can implement the reference model. The pointer is used to access the value of a variable indirectly.

Also Read

1. Static and Dynamic Memory Allocation
2. Memory Leak and Dangling Pointer
3. Memory Allocation for 2D Array
4. Dynamic Memory Allocation
5. Pointer Constant and Constant Pointer
6. Pointer Declarations and their Meanings
7. Functions and Pointers
8. Initializing Pointer to Pointer
9. Pointer to Pointer Multiple Indirection
10. Relationship between Array and Pointer
11. Pointer to Array
12. Pointer Arithmetic
13. Types of Pointer
14. Illustrate Basic Pointer Use
15. Using Pointer
16. Intializing Pointer
17. Declaring Pointer
18. Applications of Pointer
19. What is Pointer