Method rfind

ppcc/adlib/str.cc:251–257

}

Int Str::rfind(char ch) {
  for (Int i = _len - 1; i >= 0; i--) {
    if (_data[i] == ch)
      return i;
  }
  return NOWHERE;
}

Int Str::rfind(const char *s, Int n) {
  require(n >= 0, "empty string");