Operator overloading is great, I'm not against it per se.

But it's a two-edged sword which should be handled with care.

Overloading an operator because it looks like another syntax is not a good idea ( here >> )

A good example for overloading are set operations, because the logic is "compatible".

• X * Y intersection
• X + Y join
• X - Y difference
• - X complement

I could also attempt to use the logical && family but short circuiting could sabotage it.

Bitwise ~ | & ^ etc. might be another option tho ... and the analogy between sets and bit vectors might help.

update

Found Set::Scalar which has a good set of overloaded operators.