#![warn(clippy::mismatched_target_os)]
#![allow(unused)]

#[cfg(target_os = "linux")]
fn linux() {}

#[cfg(target_os = "freebsd")]
fn freebsd() {}

#[cfg(target_os = "dragonfly")]
fn dragonfly() {}

#[cfg(target_os = "openbsd")]
fn openbsd() {}

#[cfg(target_os = "netbsd")]
fn netbsd() {}

#[cfg(target_os = "macos")]
fn macos() {}

#[cfg(target_os = "ios")]
fn ios() {}

#[cfg(target_os = "android")]
fn android() {}

#[cfg(target_os = "emscripten")]
fn emscripten() {}

#[cfg(target_os = "fuchsia")]
fn fuchsia() {}

#[cfg(target_os = "haiku")]
fn haiku() {}

#[cfg(target_os = "illumos")]
fn illumos() {}

#[cfg(target_os = "l4re")]
fn l4re() {}

#[cfg(target_os = "redox")]
fn redox() {}

#[cfg(target_os = "solaris")]
fn solaris() {}

#[cfg(target_os = "vxworks")]
fn vxworks() {}

// list with conditions
#[cfg(all(not(any(target_os = "solaris", target_os = "linux")), target_os = "freebsd"))]
fn list() {}

// correct use, should be ignored
#[cfg(target_os = "freebsd")]
fn correct() {}

fn main() {}