/* various helper functions */
/* ------------------------------------------------------------------------- */
-inline void swap_numbers(int *i1, int *i2)
+void swap_numbers(int *i1, int *i2)
{
int help = *i1;
*i2 = help;
}
-inline void swap_number_pairs(int *x1, int *y1, int *x2, int *y2)
+void swap_number_pairs(int *x1, int *y1, int *x2, int *y2)
{
int help_x = *x1;
int help_y = *y1;