How to Declare Pointer | Declaring Pointer in C Programming ?

How to Declare Pointer in C Programming ?

Syntax of Pointer in C :

data_type  *  pointer_name ;

Explanation :

data_type

• Type of variable that the pointer points to
•  OR data type whose address is stored in pointer_name

Asterisk(*)

• Asterisk is called as Indirection Operator
• It is also called as Value at address Operator
• It Indicates Variable declared is of Pointer type

Pointer name :

• Must be any Valid C identifier
• Must follow all Rules of Variable name declaration

Valid Writing Styles : * can appears anywhere between Pointer_name and Data Type

int *p;
int *        p;
int    *  p;

Example of Declaring Integer Pointer :

int n = 20;
int *ptr;

Example of Declaring Character Pointer :

char ch = 'A';
char *cptr;

Example of Declaring Float Pointer :

float fvar = 3.14;
float *fptr;

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