Declaring pointers

Declaring Pointers 

Pointer is a variable it has to be declared before it can be used. 

Syntax: data_type* pointer_name; 

data_type is any ‘C’ data type and it indicates the type of the variable that the pointer points to. 

 (*) is indirection operator 

pointer_name is a valid C identifier 

Examples: 

char *p_ch1,*p_ch2 ; /*p_ch1 and *p_ch2 are pointer to type char */ 

int *ptr_num; /*ptr_num is a pointer to an integer*/

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. Application of Pointers
18. Value Model VS Reference Model
19. What is Pointer