# [−] [src] Macro log::trace

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

Logs a message at the trace level.

# Examples

ⓘThis code runs with edition 2018

    use log::trace;

    let pos = Position { x: 3.234, y: -1.223 };

    trace!("Position is: x: {}, y: {}", pos.x, pos.y);
    trace!(target: "app_events", "x is {} and y is {}",
           if pos.x >= 0.0 { "positive" } else { "negative" },
           if pos.y >= 0.0 { "positive" } else { "negative" });