X-Git-Url: https://git.ralfj.de/rust-101.git/blobdiff_plain/b60c82e9d3b03aa36484c1ff68f34f4e78862d46..38318e759c8aae48e68e413856289eb436a15b08:/src/part03.rs diff --git a/src/part03.rs b/src/part03.rs index ef8ab92..513148b 100644 --- a/src/part03.rs +++ b/src/part03.rs @@ -24,19 +24,19 @@ fn read_vec() -> Vec { let mut vec: Vec = Vec::::new(); // The central handle to the standard input is made available by the function `io::stdin`. let stdin = io::stdin(); - println!("Enter a list of numbers, one per line. End with Ctrl-D."); + println!("Enter a list of numbers, one per line. End with Ctrl-D (Linux) or Ctrl-Z (Windows)."); //@ We would now like to iterate over standard input line-by-line. We can use a `for` loop //@ for that, but there is a catch: What happens if there is some other piece of code running //@ concurrently, that also reads from standard input? The result would be a mess. Hence //@ Rust requires us to `lock` standard input if we want to perform large operations on - //@ it. (See [the documentation](http://doc.rust-lang.org/stable/std/io/struct.Stdin.html) for more + //@ it. (See [the documentation](https://doc.rust-lang.org/stable/std/io/struct.Stdin.html) for more //@ details.) for line in stdin.lock().lines() { // Rust's type for (dynamic, growable) strings is `String`. However, our variable `line` // here is not yet of that type: It has type `io::Result`. //@ The problem with I/O is that it can always go wrong. The type of `line` is a lot like `Option` ("a `String` or //@ nothing"), but in the case of "nothing", there is additional information about the error. - //@ Again, I recommend to check [the documentation](http://doc.rust-lang.org/stable/std/io/type.Result.html). + //@ Again, I recommend to check [the documentation](https://doc.rust-lang.org/stable/std/io/type.Result.html). //@ You will see that `io::Result` is actually just an alias for `Result`, so click on that to obtain //@ the list of all constructors and methods of the type. @@ -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) | [next](part04.html) +//@ [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)