Ali Mohammad Pur 221ecf17d3 AK: Allow Optional<T&> to exist ...

This implements Optional<T&> as a T*, whose presence has been missing
since the early days of Optional.
As a lot of find_foo() APIs return an Optional<T> which imposes a
pointless copy on the underlying value, and can sometimes be very
misleading, with this change, those APIs can return Optional<T&>.

2022-04-04 12:48:31 +02:00

6.6 KiB

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