Question

What does it mean when a pointer is used in an if statement?

Answer 1

It is good habits to check the pointer in if condition before using it. It prevents code crashing. A pointer can be used in an if, while, for, or do/while statement, or in any conditional expression.

Let see an example code,

if ( p )

{

/*Run when valid address */

}

else

{

/*When NULL pointer*/

}