May 2019
Intermediate to advanced
698 pages
17h 21m
English
Content preview from The Complete Rust Programming Reference Guide
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Vec<T> and VecDeque<T>
Just like the dynamic array in Chapter 14, Lists, Lists, More Lists, Vec<T> and VecDeque<T> are growable, list-like data structures with support for indexing and based on a heap-allocated array. Other than the previously implemented dynamic array, it is generic by default without any constraints for the generic type, allowing literally any type to be used.
Vec<T> aims to have as little overhead as possible, while providing a few guarantees. At its core, it is a triple of (pointer, length, capacity) that provides an API to modify these elements. The capacity is the amount of memory that is allocated to hold items, which means that it fundamentally differs from length, the number of elements currently held. In case a ...
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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.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
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.