February 2022
Intermediate to advanced
140 pages
2h 28m
English
Content preview from Rust Brain Teasers
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| Puzzle 18 | Mutable Immutables |
| | fn main() { |
| | let life_the_universe = &mut 41; |
| | *life_the_universe += 1; |
| | println!("Life, the Universe and Everything: {}", life_the_universe); |
| | } |
Guess the Output | |
|---|---|
|
Try to guess what the output is before moving to the next page. |
The program will display the following output:
| | Life, the Universe and Everything: 42 |
Discussion
The surprising part of this teaser is that the life_the_universe ...
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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.