#include <stdio.h>

/* delay execution with some crude code,
   should use thrd_sleep, once we have that */
void delay(double secs) {
  double const magic = 4E8;  // works just on my machine
  unsigned long long const nano = secs * magic;
  for (unsigned long volatile count = 0;
       count < nano;
       ++count) {
    /* nothing here */
  }
}

int main(int argc, [[maybe_unused]] char* argv[argc+1]) {
  fputs("waiting 10 seconds for you to stop me", stdout);
  if (argc < 3) fflush(stdout);
  for (unsigned i = 0; i < 10; ++i) {
    fputc('.', stdout);
    if (argc < 2) fflush(stdout);
    delay(1.0);
  }
  fputs("\n", stdout);
  fputs("You did ignore me, so bye bye\n", stdout);
}