Basic pointer behavior in C

gistfile1.txt

Basic pointer behavior in C

pointers.c

#include <stdio.h>
#include <math.h>

int main(void)
{

  float x;
  int y;
  float *ptr_x = &x;

  x = 2;

  printf("x=%f\n", x);
  printf("&x=%p\n", &x);

  printf("*ptr_x=%f\n", *ptr_x);
  printf("ptr_x=%p\n", ptr_x);
  printf("&ptr_x=%p\n", &ptr_x);

  //Can also do assignment through dereference:
  *ptr_x = 5;
  printf("*ptr_x = 5; Now *ptr_x=%f\n", *ptr_x);
  printf("ptr_x=%p\n", ptr_x);
  printf("&ptr_x=%p\n", &ptr_x);

  //What is a void pointer?

  return 0;
}