Question

1. Instantiate pointers to various data types? How do you instantiate pointers to various data types?

Answer 1

   //a pointer of type int
   int * ptr1;
   //a pointer of type float
   float * ptr2;
   //a pointer of type char
   char *ptr3;
   int a=23;
   float b = 1.23;
   char c = 'P';
  
   //initialising pointer
   ptr1 = &a;
   ptr2 = &b;
   ptr3 = &c;
  
//Also we can use a void pointer

//a pointer of type void
   void * ptr;
   int a=23;
   float b = 1.23;
   char c = 'P';
  
   //initialising pointer
   ptr = &a;

printf("%d",(*(int*)ptr));
   ptr = &b;

printf("%f",(*(float*)ptr));
   ptr = &c;

printf("%c",(*(char*)ptr));