SingleSource/UnitTests/SignlessTypes/factor.c

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

#define PLANE_SIZE 50
static char plane[PLANE_SIZE];

void fill() {
  /* Fill the plane with the bit mask for remainders */
  unsigned i;
  for (i = 0; i < PLANE_SIZE; ++i ) {
    plane[i] = 0;
    if (i % 17 == 0)
      plane[i] |= 128;
    if (i % 13 == 0)
      plane[i] |= 64;
    if (i % 11 == 0)
      plane[i] |= 32;
    if (i % 7 == 0)
      plane[i] |= 16;
    if (i % 5 == 0)
      plane[i] |= 8;
    if (i % 3 == 0)
      plane[i] |= 4;
    if (i % 2 == 0)
      plane[i] |= 2;
    plane[i] |= 1;
  }
}

int
main(int argc, char **argv)
{
  unsigned i;

  fill();

  for (i = 0; i < PLANE_SIZE; i++) {
    if (plane[i] & 0x10)
        printf("%d ", i);
  }
  printf("\n");

  return 0;
}