How do I add resources such as text files or exe files into my application?

Question

I tried this code

static HOST_FILE: &'static [u8] = include_bytes!("C:\\Users\\Downloads\\cbimage.png");

fn main() {
     let host_str = std::str::from_utf8(HOST_FILE). unwrap();

     println!("Hosts are:\n{}", &host_str[..42]);
}

But it shows me an error: thread 'main' panicked at 'called Result::unwrap() on an Err value: Utf8Error { valid_up_to: 66, error_len: Some(1) }', src\main.rs:48:51 stack backtrace

Does this answer your question? [Is there any way to include binary or text files in a Rust library?](https://stackoverflow.com/questions/32748918/is-there-any-way-to-include-binary-or-text-files-in-a-rust-library) — Finomnis, Dec 04 '22 at 08:25
@Finomnis I tried it but it gives me an error Utf8Error { valid_up_to: 0, error_len: Some(1) }' — kcbbcn otfemb, Dec 04 '22 at 08:37
@Finomnis I tried the second example as well And the error appeared: byte index 42 is out of bounds of Code: static HOST_FILE: &'static str = include_str!("C:\\Users\\Desktop\\hello desktop. txt"); fn main() { println!("Hosts are:\n{}", &HOST_FILE[..42]); } The number 42 indicates what? — kcbbcn otfemb, Dec 04 '22 at 08:47
Your comments are turning the question into another question. Open a new one, with a [minimal, reproducible example](https://stackoverflow.com/help/minimal-reproducible-example), including your code, the error messages, and the text file. — kotatsuyaki, Dec 04 '22 at 08:54
@Finomnis I'm currently with a single example that only contains this code static HOST_FILE: &'static[u8] = include_bytes!("/etc/hosts"); fn main() { let host_str = std::str::from_utf8(HOST_FILE). unwrap(); println!("Hosts are:\n{}", &host_str[..42]); } But it gives me an error! — kcbbcn otfemb, Dec 04 '22 at 09:00
Please don't use comments to update your question, [edit] your question directly :) — Finomnis, Dec 04 '22 at 09:00
*"But it gives me an error!"* - Please don't make statements like this without actually showing the error. Just knowing that it fails on your machine gives us no information we could help you with. — Finomnis, Dec 04 '22 at 09:02
I guess .. don't use the `42`? I'm not sure why that's part of the other question, but **never** copy-paste code from the internet into your project that you don't understand! Thats one of the very basic rules of stackoverflow. **Always** understand and verify code you copy from the internet. There are trolls, and there were cases where people made other people `sudo rm -rf /`. — Finomnis, Dec 04 '22 at 09:04
Well now I've modified my question, I'll look into issue 42 and make sure — kcbbcn otfemb, Dec 04 '22 at 09:09
@cafce25 It's not utf8 but it wants to convert to pass include_bytes Am i right ? — kcbbcn otfemb, Dec 04 '22 at 10:15
If it's not then why do you call `std::str::from_utf8` on it? — cafce25, Dec 04 '22 at 10:19
@cafce25 I've modified it now and removed std::str::from_utf8 But he did not add the image to the application why ? fn main() { let bytes = include_bytes! ("C: \\ Users \\ Downloads \\ cbimage.png"); println! ("{:?}" Byte) ; } — kcbbcn otfemb, Dec 04 '22 at 10:24
If you want to add to your question, you can [edit] it and add a tag like **EDIT:** in front of it. Like in this question: https://stackoverflow.com/questions/74665076/visual-studio-code-distorts-ansi-characters — Finomnis, Dec 04 '22 at 11:19

score 0 · Accepted Answer · answered Dec 04 '22 at 11:13

static IMAGE: &'static [u8] = include_bytes!("C:\\Users\\Downloads\\cbimage.png");

fn main() {
    println!("Image: {:?}", IMAGE);
}

Although I recommend using a path relative to your source code, like

static IMAGE: &'static [u8] = include_bytes!("../cbimage.png");

fn main() {
    println!("Image: {:?}", IMAGE);
}

And place cbimage.png next to your Cargo.toml.

How do I add resources such as text files or exe files into my application?

1 Answers1