Example what different types of pointer does with the underlaying addresses

pointer_aritmetic_1.c

#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>

struct myStruct {
  uint32_t a;
  uint32_t b;
  uint32_t c;
  uint32_t d;
};

int main(void) {
  // this only gives us some data to play with,
  // since we are in userspace we cannot simply use address how we like...
  //void* data = malloc(1000);


  uint8_t* ptr1 = (uint8_t*)0x100;
  uint16_t* ptr2 = (uint16_t*)0x100;
  uint32_t* ptr3 = (uint32_t*)0x100;
  struct myStruct* ptr4 = (struct myStruct*)0x100;
  void* ptr5 = (void*)0x100;


  printf("start addresses:\n");
  printf("ptr1 = %p\n", ptr1);
  printf("ptr2 = %p\n", ptr2);
  printf("ptr3 = %p\n", ptr3);
  printf("ptr4 = %p\n", ptr4);
  printf("ptr5 = %p\n", ptr5);

  ptr1 += 1;
  ptr2 += 1;
  ptr3 += 1;
  ptr4 += 1;
  ptr5 += 1;

  printf("addresses after we add 1:\n");
  printf("ptr1 = %p\n", ptr1);
  printf("ptr2 = %p\n", ptr2);
  printf("ptr3 = %p\n", ptr3);
  printf("ptr4 = %p\n", ptr4);
  printf("ptr5 = %p\n", ptr5);

  return 0;
}