Macro log::warn

macro_rules! warn {
    (target : $target : expr, $($arg : tt) +) => { ... };
    ($($arg : tt) +) => { ... };
}

Logs a message at the warn level.

Examples

use log::warn;

let warn_description = "Invalid Input";

warn!("Warning! {}!", warn_description);
warn!(target: "input_events", "App received warning: {}", warn_description);