Pointer in C

The Pointer in C programming language is a variable which stores the address of other variables. The pointer variable is such as int, float, char, double, short etc.

The syntax for a pointer is as follows:

data_type*var_name;





The example of a pointer is as follows:

int*p; char*p;

Note: * denotes that p is the pointer variable, not a normal variable.

The example program for a pointer in the C  is the following:

#include <stdio.h>
 int main()
 {
         int*ptr, q;
         q =80;
         /* address of q is assigned to ptr */
         ptr =&q;
         /* display q's value using ptr variable */
         printf("%d", *ptr);
         return 0;
 }

Result:

80


 

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