#include "byte.h"

unsigned int byte_rchr(s,n,c)

char *s;

register unsigned int n;

int c;

{

  register char ch;

  register char *t;

  register char *u;

  ch = c;

  t = s;

  u = 0;

  for (;;) {

    if (!n) break; if (*t == ch) u = t; ++t; --n;

    if (!n) break; if (*t == ch) u = t; ++t; --n;

    if (!n) break; if (*t == ch) u = t; ++t; --n;

    if (!n) break; if (*t == ch) u = t; ++t; --n;

  }

  if (!u) u = t;

  return u - s;

}