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                                                   RUST        
        About the Tutorial 
        Rust is a modern systems programming language developed by the Mozilla Corporation. 
        It is intended to be a language for highly concurrent and highly secure systems. It compiles 
        to native code; hence, it is blazingly fast like C and C++. 
        This tutorial adopts a simple and practical approach to describe the concepts of Rust 
        programming.   
        Audience 
        This tutorial has been prepared for beginners to help them understand the basic and 
        advanced concepts of Rust. 
        Prerequisites 
        We assume that the reader has an understanding of basic programming concepts is 
        necessary for this course. 
        Copyright & Disclaimer 
         Copyright 2019 by Tutorials Point (I) Pvt. Ltd.  
        All the content and graphics published in this e-book are the property of Tutorials Point (I) 
        Pvt. Ltd.  The user of this e-book is prohibited to reuse, retain, copy, distribute or republish 
        any contents or a part of contents of this e-book in any manner without written consent 
        of the publisher.   
        We strive to update the contents of our website and tutorials as timely and as precisely as 
        possible, however, the contents may contain inaccuracies or errors. Tutorials Point (I) Pvt. 
        Ltd. provides no guarantee regarding the accuracy, timeliness or completeness of our 
        website or its contents including this tutorial. If you discover any errors on our website or 
        in this tutorial, please notify us at contact@tutorialspoint.com 
         
         
         
         
         
         
                       
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                                                                                                                                                   RUST        
                      Table of Contents 
                           About the Tutorial ...................................................................................................................................... i 
                           Audience .................................................................................................................................................... i 
                           Prerequisites .............................................................................................................................................. i 
                           Copyright & Disclaimer ............................................................................................................................... i 
                           Table of Contents ...................................................................................................................................... ii 
                      1.   RUST — Introduction ................................................................................................................................ 1 
                           Application v/s Systems Programming Languages ...................................................................................... 1 
                           Why Rust? ................................................................................................................................................. 1 
                      2.   RUST — Environment Setup ...................................................................................................................... 3 
                           Installation on Windows ............................................................................................................................ 3 
                           Installation on Linux / Mac ......................................................................................................................... 5 
                           Using Tutorials Point Coding Ground for RUST ........................................................................................... 5 
                      3.   RUST — HelloWorld Example .................................................................................................................... 6 
                           What is a macro? ....................................................................................................................................... 7 
                      4.   RUST — Data Types ................................................................................................................................... 9 
                           Declare a Variable...................................................................................................................................... 9 
                           Scalar Types............................................................................................................................................. 10 
                           Integer .................................................................................................................................................... 10 
                           Float ........................................................................................................................................................ 12 
                           Boolean ................................................................................................................................................... 13 
                           Character ................................................................................................................................................ 14 
                      5.   RUST — Variables ................................................................................................................................... 15 
                           Rules for Naming a Variable ..................................................................................................................... 15 
                           Syntax ..................................................................................................................................................... 15 
                           Immutable ............................................................................................................................................... 15 
                           Mutable .................................................................................................................................................. 16 
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                                                                                                                                                   RUST        
                      6.   RUST — Constant .................................................................................................................................... 18 
                           Rust Constant Naming Convention ........................................................................................................... 18 
                           Constants v/s Variables............................................................................................................................ 18 
                           Shadowing of Variables and Constants ..................................................................................................... 19 
                      7.   RUST — String ......................................................................................................................................... 21 
                           String Literal ............................................................................................................................................ 21 
                           String Object ........................................................................................................................................... 22 
                           Illustration: new() .................................................................................................................................... 24 
                           Illustration: to_string() ............................................................................................................................. 24 
                           Illustration: replace() ............................................................................................................................... 24 
                           Illustration: as_str() ................................................................................................................................. 25 
                           Illustration: push() ................................................................................................................................... 25 
                           Illustration: push_str() ............................................................................................................................. 26 
                           Illustration: len() ...................................................................................................................................... 26 
                           Illustration: trim() .................................................................................................................................... 26 
                           Illustration:split_whitespace() .................................................................................................................. 27 
                           Illustration: split() string........................................................................................................................... 28 
                           Illustration: chars() .................................................................................................................................. 28 
                           Concatenation of Strings with + operator ................................................................................................. 29 
                           Illustration: Type Casting ......................................................................................................................... 30 
                           Illustration: Format! Macro ...................................................................................................................... 30 
                      8.   RUST — Operators .................................................................................................................................. 31 
                           Arithmetic Operators ............................................................................................................................... 31 
                           Relational Operators................................................................................................................................ 32 
                           Logical Operators .................................................................................................................................... 34 
                           Bitwise Operators .................................................................................................................................... 35 
                      9.   RUST — Decision Making ........................................................................................................................ 38 
                           If Statement ............................................................................................................................................ 39 
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