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Learning Rust

You're reading from   Learning Rust A comprehensive guide to writing Rust applications

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Product type Paperback
Published in Nov 2017
Publisher Packt
ISBN-13 9781785884306
Length 308 pages
Edition 1st Edition
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Author (1):
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Vesa Kaihlavirta Vesa Kaihlavirta
Author Profile Icon Vesa Kaihlavirta
Vesa Kaihlavirta
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Table of Contents (15) Chapters Close

Preface 1. Introducing and Installing Rust FREE CHAPTER 2. Variables 3. Input and Output 4. Conditions, Recursion, and Loops 5. Remember, Remember 6. Creating Your Own Rust Applications 7. Matching and Structures 8. The Rust Application Lifetime 9. Introducing Generics, Impl, and Traits 10. Creating Your Own Crate 11. Concurrency in Rust 12. Now It's Your Turn! 13. The Standard Library 14. Foreign Function Interfaces

Project 4 – memory


In this project, you are to perform the following:

  1. Reserve a 1024-byte block of memory.
  2. Fill that block of memory with random characters.
  3. Create an array, which is also 1,024 bytes in size.
  4. Copy the contents of the memory block into the array.
  5. Create a string that is limited to 1,024 bytes and is set using the capacity function.
  6. Copy the contents of the memory block into the string.

At this point, you may be wondering why we have three identical blocks of memory. The simple reason is that you will now create a piece of code that will rotate each member in turn 3 times using a simple left-bit rotation and then 3 times to the right.

Bitwise rotation

Bitwise rotation is performed in Rust using the << and >> operators.

For example, if we have a variable called x that is rotated 3 to the left, we will write x << 3 with 3 to the right being x >> 3.

Say we have x = 01101001, x << 3 will be 01001000 and x >> 3 will be 00001101.

Rotation caveat

While we can...

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