[nottorp]

By the name i'd say Arc is reference counting, which isn't exactly garbage collection...

[rc00]

Reference counting is quite literally a subset of garbage collection.

[pod_krad]

Garbage Collector acts mainly in unpredictable way. I mean it is possible it won't free memory even if counter is zero already. This is not true if we are talking about Rust.

[rc00]

https://news.ycombinator.com/item?id=43614013

[nottorp]

Then malloc/free are quite literally a subset of the borrow checker :)