X-Git-Url: https://git.ralfj.de/rust-101.git/blobdiff_plain/fb470b22751497032d97accad2ef5850d520a589..e8cb1a8966a7662eeb9fc19173a5498f7cd815b6:/src/part03.rs?ds=inline diff --git a/src/part03.rs b/src/part03.rs index 513148b..81f8714 100644 --- a/src/part03.rs +++ b/src/part03.rs @@ -6,7 +6,7 @@ //@ I/O is a complicated topic, so the code to do that is not exactly pretty - but well, //@ let's get that behind us. -// I/O is provided by the module `std::io`, so we first have import that with `use`. +// I/O is provided by the module `std::io`, so we first have to import that with `use`. // We also import the I/O *prelude*, which makes a bunch of commonly used I/O stuff // directly available. use std::io::prelude::*; @@ -51,7 +51,7 @@ fn read_vec() -> Vec { let line = line.unwrap(); // Now that we have our `String`, we want to make it an `i32`. //@ We first `trim` the `line` to remove leading and trailing whitespace. - //@ `parse` is a method on `String` that can convert a string to anything. Try finding it's documentation! + //@ `parse` is a method on `String` that can convert a string to anything. Try finding its documentation! //@ In this case, Rust *could* figure out automatically that we need an `i32` (because of the return type //@ of the function), but that's a bit too much magic for my taste. We are being more explicit here: @@ -104,7 +104,7 @@ pub fn main() { // Notice that I called the function on `SomethingOrNothing` `print2` to disambiguate from the `print` defined previously. // // *Hint*: There is a macro `print!` for printing without appending a newline. -trait Print { +pub trait Print { /* Add things here */ } impl SomethingOrNothing { @@ -116,4 +116,4 @@ impl SomethingOrNothing { // **Exercise 03.2**: Building on exercise 02.2, implement all the things you need on `f32` to make your // program work with floating-point numbers. -//@ [index](main.html) | [previous](part02.html) | [raw source](https://www.ralfj.de/git/rust-101.git/blob_plain/HEAD:/workspace/src/part03.rs) | [next](part04.html) +//@ [index](main.html) | [previous](part02.html) | [raw source](workspace/src/part03.rs) | [next](part04.html)