Rust] #[cfg(not(target_os = "linux"))] // configuration

 

 

 

// #[cfg(not(target_os = "linux"))] // configuration
// This function only gets compiled if the target OS is linux
#[cfg(target_os = "linux")]
fn are_you_on_linux() {
    println!("You are running linux!");
}

// And this function only gets compiled if the target OS is *not* linux
#[cfg(not(target_os = "linux"))]
fn are_you_on_linux() {
    println!("You are *not* running linux!");
}

fn main() {
    are_you_on_linux();

    println!("Are you sure?");
    if cfg!(target_os = "linux") {
        println!("Yes. It's definitely linux!");
    } else {
        println!("Yes. It's definitely *not* linux!");
    }
}

 

 

출처 : 

https://doc.rust-lang.org/rust-by-example/attribute/cfg.html

cfg - Rust By Example