Pointer In C

Pointer in C

Some C programming tasks are performed more easily with pointers, and other tasks, such as dynamic memory allocation, cannot be performed without using pointers. So it becomes necessary to learn pointers to become a perfect C programmer. Let's start learning them in simple and easy steps.

What is Pointer in C?

A data type for containing an address rather than a data value.In a generic sense, a “pointer” is anything that tells us where something can be found.

Declaration of Pointer Variables

Example

   

int *ptr1;

float *ptr2;

ptr1 is a pointer to an int value i.e., it can have the address of the memory location (or the first of more than one memory locations) allocated to an int value

ptr2 is a pointer to a float value i.e., it can have the address of the memory location (or the first of more than one memory locations) allocated to a float value