October 2018
Beginner
180 pages
4h 48m
English
Content preview from Rust Quick Start Guide
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What's the point?
Okay, so what's this actually good for? We could have just used a mutable variable, and produced the same result with less overhead. Cell (and RefCell) are mostly for use with Rc and similar data types. The Rc type follows Rust's normal rules about mutability, and since it's meant to be a mechanism for accessing a shared data value in many places, that means that the shared value must be immutable.
Unless that value is a Cell or RefCell containing the real shared value.
The Cell or RefCell ensures that only one block of code at a time actually modifies the shared value, but any of the blocks that have access to it through a clone of the Rc have the ability to do so.
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.