What is the size of Pointer variable in C ?

What is the size of Pointer variable in C ?

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Pointer  : 

Pointer is the variable that stores the address of another variable .

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How to calculate size of Pointer ? 

1. Size of Pointer can be evaluated by using sizeof operator
2. Pointer stores the address of the Variable .
3. Address of variable is nothing but the integer value .
   
4. In C , for storing integer value 2 bytes are required .
5. So Pointer variable requires 2 bytes of memory.
   

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int main(void)
{
  int num = 0;
  int *ptr = NULL;
  num = 15;
  ptr = #
  /* Output the size   */
 printf("Size of Pointer : %d Bytes",sizeof(pointer));
  return 0;
}

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Output :

 Size of Pointer : 2 Bytes

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Tags / Keywords : | Pointer, Pointer : size, size of pointer

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