">>>" operator is not supported

[arcticfox1919]

I see the ">>>" operator in the document, but I get an error when I use it. Is this an oversight of the document?

[kwalrath]

Oh interesting! I see the operator in the spec, but num, int, and double don't seem to implement it. I suspect it's available for specialized number classes.

/cc @lrhn for guidance on how to cover this in the language tour

[lrhn]

The >>> operator is not implemented yet. It's been specified since before 2.0, but implementing it hasn't been a priority yet.
So, nobody can use it. I hope it will be implemented real soon now.

When we introduce it into the implementations, then we will probably also add a >>> operator to the int class.

[kwalrath]

We might want to mention somewhere that >>> isn't implemented, probably in https://dart.dev/guides/language/language-tour#bitwise-and-shift-operators.

[RandalSchwartz]

One would wonder why there isn't a matching <<< then.

[lrhn]

There is an infinity of possible operators that we can add to the language. We can (and do) consider whether we should introduce larger regular families of operators, or just stick with the ones we have. Until such time, we'll probably only add specific operators that we actually need. The >>> is well-established and do we have an actual need for it. (Really, removing the >>> operator from the language when we removed it from int was completely uncalled for, we should just have left it in).
I'd probably accept ** as well, but that's about it.

[kwalrath]

dart-lang/language#1417 has a plan for implementing >>>.

[parlough]

For reference, the 2.14 dev builds now include the necessary implementation, with a changelog entry here: https://github.com/dart-lang/sdk/blob/master/CHANGELOG.md#language

[parlough]

Closing in favor of #3455 which will see the >>> operator as implemented in Dart 2.14 documented.

Thanks for opening the issue!