Displays the memory alignment of each data type.

align.c

#include <stdio.h>

#define ALIGN_OF(t) ((int)(sizeof(struct{char c; t x;}) - sizeof(t)))

int main()
{
  printf("char: %d\n", ALIGN_OF(char));
  printf("short: %d\n", ALIGN_OF(short));
  printf("int: %d\n", ALIGN_OF(int));
  printf("long: %d\n", ALIGN_OF(long));
  printf("long long: %d\n", ALIGN_OF(long long));
  printf("void*: %d\n", ALIGN_OF(void*));
  printf("float: %d\n", ALIGN_OF(float));
  printf("double: %d\n", ALIGN_OF(double));
  printf("long double: %d\n", ALIGN_OF(long double));
  return 0;
}