include_bytes in std - Rust
Description: Includes a file as a reference to a byte array.

## include_bytes

# Macro include_bytes

1.38.0 · Source

    macro_rules! include_bytes {
        ($file:expr $(,)?) => { ... };
    }

Expand description

Includes a file as a reference to a byte array.

The file is located relative to the current file (similarly to how modules are found). The provided path is interpreted in a platform-specific way at compile time. So, for instance, an invocation with a Windows path containing backslashes `\` would not compile correctly on Unix.

This macro will yield an expression of type `&'static [u8; N]` which is the contents of the file.

## §Examples

Assume there are two files in the same directory with the following contents:

File ‘spanish.in’:

    adiós

File ‘main.rs’:

ⓘ

    fn main() {
        let bytes = include_bytes!("spanish.in");
        assert_eq!(bytes, b"adi\xc3\xb3s\n");
        print!("{}", String::from_utf8_lossy(bytes));
    }

Compiling ‘main.rs’ and running the resulting binary will print “adiós”.