// SPDX-License-Identifier: Apache-2.0 or CC0-1.0
#ifndef SENDFN_H
#define SENDFN_H

#include "hal.h"

__attribute__((unused))
static void send_unsigned(const char *s, unsigned int c) {
  int i = 0;
  char outs[11] = {0};
  if (c < 10) {
    outs[0] = '0' + c;
  } else {
    for (i = 9; c != 0; c /= 10, i -= 1) {
      unsigned d = c % 10;
      outs[i] = '0' + d;
    }
    i += 1;
  }
  hal_send_str(s);
  hal_send_str(outs + i);
}

__attribute__((unused))
static void send_unsignedll(const char *s, unsigned long long c) {
  int i = 0;
  char outs[21] = {0};
  if (c < 10) {
    outs[0] = '0' + c;
  } else {
    i = 19;
    while (c != 0) {
      /* Method adapted from ""hackers delight":
         Creates an approximation of q = (8/10) */
      unsigned long long q = (c >> 1) + (c >> 2);
      q = q + (q >> 4);
      q = q + (q >> 8);
      q = q + (q >> 16);
      q = q + (q >> 32);
      /* Now q = (1/10) */
      q = q >> 3;
      /* Since q contains an error due to the bits shifted out of the value, we
         only use it to determine the remainder.  */
      unsigned long long r = c - ((q << 3) + (q << 1));
      c = q;
      /* The remainder might be off by 10, so q may be off by 1 */
      if (r > 9) {
        c += 1;
        r -= 10;
      }
      outs[i] = '0' + (unsigned) r;
      i -= 1;
    }
    i += 1;
  }
  hal_send_str(s);
  hal_send_str(outs + i);
}


#endif /* SENDFN_H */