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Hello, for iron-gcd, the crate urlencoded has the version 0.5.0 which is not compatible with rustc 1.40. But iron-gcd can be compiled with the urlencoded crate in the version v0.6.0.

I don't see any license information for this code anywhere. Maybe I'm just missing it?

Hello,

It seems that there is no source code for the quickreplace program.
Could you upload the quickreplace 's code, please?

The heading: "Chapter 22: Foreign Functions"
should be: "Chapter 23: Foreign Functions"

In the first edition of the book, there is no "Foreign Functions" chapter.

In the second edition of the book, "Foreign Functions" is chapter 23.

Hi, firstly very thanks for your awesome examples :-D

I have a little question about this example: https://github.com/ProgrammingRust/examples/blob/master/cheapo-request/src/main.rs#L11

Can you please tell me why this shutdown is required? I have uncomment this line, but it seems that I can never get response from server.

I found a small typo in this code, page 317 :

impl<K,V> Hashmap<K,V> where K: Eq + Hash {
  fn get<Q: ?Sized>(&self,key: &Q) -> Option<&V>
  Where K:Borrow<Q>,
  Q: Eq+Hash
  {...}
}

The problem is in Where K: Borrow<Q> it should be Where key: Borrow<Q>
Instead of K it should be key.

Running the code around page 18 gives me the following error:

error[E0277]: cannot subtract `chrono::Duration` from `Tm`
cookie.set_expires(time::now() - Duration::days(365));
| ^ no implementation for `Tm - chrono::Duration`
|
= help: the trait `Sub<chrono::Duration>` is not implemented for `Tm`
= help: the following other types implement trait `Sub<Rhs>`:
<Tm as Sub<time::Duration>>
<Tm as Sub>

The compiler doesn't even reach my code, so it must be an issue with dependencies.
Based on this Reddit post, other people are getting the same error:
https://www.reddit.com/r/rust/comments/17djgjd/working_through_programming_rust_2nd_edition_got/

Adding this dependency fixes the issue:
chrono = { version = "= 0.4.29" }

the code from P.520:

$( fields.insert($crate::ToString::to_string($key), json!($value)); )*

the code in this repository is:

$( fields.insert($crate::macros::ToString::to_string($key), json!($value)); )*

It should use the second version $crate::macros::ToString because ToString is private, just like HashMap?

😄

Hello, I'm having a compiler problem, running on windows 10 with C++ build tools 2017.
Book's Pages: 18-19.

Terminal Output:

$ cargo run
Compiling iron-gdc v0.1.0 (file:///C:/Users/Simone%20Romano/Desktop/git/rust/iron-gdc)
error: cannot find macro mime! in this scope
--> src\main.rs:21:22
|
21 | response.set_mut(mime!(Text/Html; Charset=Utf8));
| ^^^^

error: aborting due to previous error

error: Could not compile iron-gdc.

To learn more, run the command again with --verbose.

Code:

extern crate iron;
#[macro_use] extern crate mime;

use iron::prelude::*;
use iron::status;

fn main() 
{
    let port = 3000;
    let hostname = "localhost:" + port.to_string();
    println!("Serving on http://{}...", hostname);

    Iron::new(get_form).http(hostname).unwrap;
}

fn get_form(_request: &mut Request) -> IronResult<Response>
{
    let mut response = Response::new();

    response.set_mut(status::Ok);
    response.set_mut(mime!(Text/Html; Charset=Utf8));
    response.set_mut(r#"
        <title> GDC Calculator </title>
        <form action="/gdc" method="post">
            <input type="text" name="n">
            <input type="text" name="n">
            <button type="submit"> Compute GDC </button>
        </form>
    "#);

    Ok(response)
}

Had to run 'Cargo update' for the iron-gcd to run without errors using the cloned repository. Attached is the resulting Cargo.lock file.

Cargo.zip