Is there any language that treats the zeros as unequal? That would seem like the...

dnautics · on March 5, 2021

in the specific case of erlang, and the erlang beam vms,

0 !== 0.0

Of course 0 == 0.0

I imagine if they had chosen to follow IEEE, it would have been that 0.0 !== -0.0 and 0.0 == 0.0.

recursive · on March 5, 2021

I don't know erlang, but it looks to me like that's a difference between types. (integer vs float)

Is there a language that treats different float values of zero as unequal? That would be surprising to me. And possibly silly.

dnautics · on March 5, 2021

In Julia 0.0 == -0.0 but 0.0 === -0.0 evaluates to false.

Note that -0.0 and 0.0 are different at the binary representation level, which is what === checks for.