public int pointToSymbol(int midCount, ByteSet exclusions) {
	int sum = 0; 
	for (int mid = 0; ; ++mid) {
	    if (mid != EOF_INDEX && exclusions.contains(mid)) continue;
	    sum += _count[mid];
	    if (sum > midCount) return (mid == EOF_INDEX) ? ArithCodeModel.EOF : mid;
	}
    }