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Re:Sub-10 ms Latency in Java: Concurrent GC with Green Threads by cogman10 on Wednesday August 05, 2020 @12:02PM (#24062305)
Certainly. However, both of those things (from what I've seen) are fairly rare.

The C++ copy constructor comes up fairly frequently.

Re:Sub-10 ms Latency in Java: Concurrent GC with Green Threads by pjmlp on Wednesday August 05, 2020 @12:10PM (#24062395)
Like unsafe Rust code, there is the theory and then there are the code bases that one finds out in the wild on crates.io and in-house, not necessarily using best practices.