Why don't we add bitwise operators here?

Features for bitwise operation

1. bitwise opeartors

• bitwise OR ( | )
• bitwise AND ( & )
• bitwise XOR ( ^ )
• bitwise NOT ( ~ )
• bitwise LEFT SHIFT ( << )
• bitwise RIGHT SHIFT ( >> )

2. bitwise-assignment opeartors

• bitwise-assignment OR ( |= )
• bitwise-assignment AND ( &= )
• bitwise-assignment XOR ( ^= )
• bitwise-assignment LEFT SHIFT ( <<= )
• bitwise-assignment RIGHT SHIFT ( >>= )