> Edit: I do think it's stupid to make the identity-equals operator overloadable. Identity-equals and value-equals are separate concepts. In C++ this isn't an issue because == is the value-equals operator.

In Ruby, == is value-equals at well (identity-equality being such a rarely needed concept in Ruby that it wouldn't make sense to privilege it with its own operator).

Identity equality in Ruby is provided by:

    a.object_id == b.object_id