code: function mpn_one_p(n, l) {
  	if (l <= 0 || n[0] != 1) {
  		return false;
  	}
  	for (var i = 1; i < l; ++i) {
  		if (n[i] != 0) {
  			return false;
  		}
  	}
  	return true;
  }
docs: /*
  Returns whether the given multi-precision integer is equal to one.