write code for part 03

[rust-101.git] / src / main.rs

diff --git a/src/main.rs b/src/main.rs
index e4108d44eea8f081c1d196e196526b3ca047972e..e89f2f145aa4aee757c3c2ce191c7468e3e3eb10 100644 (file)
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,25 +1,68 @@
 // Welcome to Rust-101
 // ===================
-//
-// This is Rust-101, a small tutorial to the [Rust language](http://www.rust-lang.org/).
-// This is intended to be an interactive, hands-on course: I believe the only way to
+// 
+// This is [Rust-101](https://www.ralfj.de/projects/rust-101/), a small *work-in-progress*
+// tutorial for the [Rust language](http://www.rust-lang.org/).
+// It is intended to be an interactive, hands-on course: I believe the only way to
 // *really* learn a language is to write code in it, so you should be coding during
-// the course. These documents mainly serve as a guide to the teacher, reminding me
-// what to explain in which order, and making sure I have sample code for all topics
-// I plan to cover. They may also be helpful as an offline resource, but you're on your
-// own then.
-
+// the course. I am writing this tutorial with a tutorial situation in mind, i.e.,
+// with a teacher being around to guide students through the course and answer
+// questions as they come up. However, I think they may also be useful if you
+// work through them on your own. Just make sure to actually play with the code.
+// If you have any questions, maybe the "Additional Resources" below are useful.
+// 
+// I will assume basic familiarity with programming, and hence not explain the basic
+// concepts common to most languages. Instead, I will focus on what makes Rust special.
+// 
+// Prerequisites
+// -------------
+// 
+// You will need to have Rust installed, of course. It is available for download on
+// [the Rust website](http://www.rust-lang.org/). At this point, I plan to restrict
+// myself to stable Rust, so "Recommended" version is just right.
+// You can find some more installation instructions in
+// [the second chapter of The Book](https://doc.rust-lang.org/stable/book/installing-rust.html).
+// When you are done, running `cargo build` in the root of Rust-101 should successfully compile
+// all the code.
+// 
+// Getting the source
+// ------------------
+// 
+// You are meant to play around with the source code of the course as you go on, so please
+// fetch it from the [git repository](http://www.ralfj.de/git/rust-101.git) (also available
+// [on GitHub](https://github.com/RalfJung/rust-101)).
+// 
+// Course Content
+// --------------
+// 
 // The actual course is in the partXX.rs files. I suggest you get started with
 // [the first part](part00.html), or jump directly to where you left off:
-
+// 
 // * [Part 00](part00.html)
 // * [Part 01](part01.html)
+// * [Part 02](part02.html)
+// * [Part 03](part03.html) (WIP)
+// * (to be continued)
+#![allow(dead_code, unused_imports, unused_variables)]
 mod part00;
 mod part01;
+mod part02;
+mod part03;
 
-// To actually run the code after filling in the blanks, simply edit the `main`
-// function below.
+// To actually run the code of some part (after filling in the blanks, if necessary), simply edit the `main`
+// function.
 
 fn main() {
     part00::part_main();
 }
+
+// Additional material
+// -------------------
+// 
+// There's tons of useful Rust stuff out there, so let me just put links to some
+// of the most interesting places here:
+// 
+// * [The Rust Book](https://doc.rust-lang.org/stable/book/)
+// * [Rust by Example](http://rustbyexample.com/)
+// * The [Rust Subreddit](https://www.reddit.com/r/rust/)
+// * For the IRC channel and other forums, see the "Community" section of the [Rust Documentation index](http://doc.rust-lang.org/index.html)