Borrowing is entirely a compile-time analysis. There is no runtime impact (other than the fact that you can get away without a garbage collector - in a safe way).
The Learn Rust the Dangerous way article is very good, by the way! I heartily endorse it for the C-philes among GTALUG. If you haven’t read it, one of the things that might convince you is that the leaderboard for this highly-optimized n-body simulation has Rust in the first-place https://benchmarksgame-team.pages.debian.net/benchmarksgame/performance/nbody.html - faster than C, C++, Fortran or Ada. I’ve added it to my list of resources for Rust: https://cps506.scs.ryerson.ca/Resources/rust.html ../Dave On Dec 31, 2019, 4:22 PM -0500, Nicholas Krause via talk <[email protected]>, wrote: > > > On 12/31/19 11:57 AM, D. Hugh Redelmeier via talk wrote: > > | From: Tom Low-Shang via talk <[email protected]> > > > > | I'm interested in your thoughts on Rust if you attended the talk. > > > > The talk was mostly a guided creation of a program. So I don't think > > that it answered any of your questions. > > > > | I'm currently learning Rust the old fashioned hacker way (from books and > > | other people's code :)). My biggest mistake was trying to use Rust with > > | SDL2 to display some graphics. My head still hurts from banging it into > > | a wall called 'lifetimes'. :) > > > > The whole idea of borrowing etc. is fundamental to Rust and how it > > ensures safety. Without garbage collection. If you don't like or > > understand this approach, Rust isn't useful. > Hugh, > I've a question about how borrowing is implemented internally as it can lead > to a problem, if I allow lots of memory can my program stall because of this > at the end of a block. In addition due to this does borrow checking > limit or > not implement something like freelists or caching to get better usage of the > CPU cache as that's also a concern. > > Thanks, > Nick > > --- > > Post to this mailing list [email protected] > > Unsubscribe from this mailing list https://gtalug.org/mailman/listinfo/talk > > --- > Post to this mailing list [email protected] > Unsubscribe from this mailing list https://gtalug.org/mailman/listinfo/talk
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