public boolean containsNone ( int start , int end ) { if ( start < MIN_VALUE || start > MAX_VALUE ) { throw new IllegalArgumentException ( "Invalid code point U+" + Utility . hex ( start , 6 ) ) ; } if ( end < MIN_VALUE || end > MAX_VALUE ) { throw new IllegalArgumentException ( "Invalid code point U+" + Utility . hex ( end , 6 ) ) ; } int i = - 1 ; while ( true ) { if ( start < list [ ++ i ] ) break ; } return ( ( i & 1 ) == 0 && end < list [ i ] ) ; }
Returns true if this set contains none of the characters of the given range .