src/ExpressionParser.php
private function validateBitTable(int $flags, string $message)
    {
        if (! ($flags && !($flags & ($flags-1)))) throw new \Exception($message);
    }
private function validateBitTable(int $flags, string $message)
    {
        if (! ($flags && !($flags & ($flags-1)))) throw new \Exception($message);
    }
private function validateBitTable ( int $ flags , string $ message ) { if ( ! ( $ flags && ! ( $ flags & ( $ flags - 1 ) ) ) ) throw new \ Exception ( $ message ) ; }
Checks if at least one and only one single bit is active or fails
Checks if at least one and only one single bit is active or fails