Swift's GC is really a lot closer to modern C++ style memory management than the... | Hacker News

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		biggestdecision on Oct 4, 2019 \| parent \| context \| favorite \| on: Parsing C++ is literally undecidable (2013) Swift's GC is really a lot closer to modern C++ style memory management than the other languages you mentioned. If you use RAII & shared_ptr in C++ you are using the exact same techniques that Swift's "GC" uses.

pjmlp on Oct 4, 2019 | [–]

And as proven by the ixy paper, quite slow versus tracing GCs.

biggestdecision on Oct 5, 2019 | | [–]

I assume this is what you are talking about? https://www.net.in.tum.de/fileadmin/bibtex/publications/pape...

>A total of 76% of the CPU time is spent incrementing and decrementing reference counters.

ouch

pjmlp on Oct 5, 2019 | | | [–]

Yep, that one.

im3w1l on Oct 4, 2019 | [–]

Maybe. But shared_ptr should only be used very sparingly. Almost all objects should be stack or unique_ptr.

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