De-Referencing Void Pointers in C Programming Language

Void Pointers are -

• General Purpose 
• Stores the address of any type of variable

Why to use Void Pointers ?

float *ptr;
int num;
ptr = &num ;  // Illegal Use of Pointer 

So in order to increase the re-usability of the Pointer it is declared as void Pointer.

De-Referencing void Pointer :

Suppose 

• ptr is Void Pointer 
• inum is integer
  
• cnum is character
  
• fnum is float

Whose Address is stored in Void Pointer ?	How to De-Reference it ?
Integer	*((int*)ptr)
Charcter	*((char*)ptr)
Floating	*((float*)ptr)

#include
main()
{
int inum = 8 , temp ;
float fnum = 67.7;
void *ptr;
ptr = &inum;    // Assign address of integer to void pointer
temp = *((int*)ptr); 

printf("\nThe valu of inum = ",temp);
}

Output :

8

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