Macro progress 

macro_rules! progress {
    ($bar:ident, $($fmt_args:tt)*) => { ... };
    ($bar:ident += $inc:expr) => { ... };
    ($bar:ident += $inc:expr, $($fmt_args:tt)*) => { ... };
    ($bar:ident = $x:expr) => { ... };
    ($bar:ident = $x:expr, $($fmt_args:tt)*) => { ... };
}

Available on crate feature print only.

Update a progress bar

The macro takes 2 parts separated by comma ,:

• An expression for updating the progress:
• Optional format args for updating the message.

The progress update expression can be one of:

• bar = i: set the progress to i
• bar += i: increment the steps by i
• bar: don’t update the progress

, where bar is an ident

The format args can be omitted to update the progress without updating the message

Examples

let bar = cu::progress("10 steps").total(10).spawn();
// update the current count and message
let i = 1;
cu::progress!(bar = i, "doing step {i}");
// update the current count without changing message
cu::progress!(bar += 2);
// update the message without changing current step
cu::progress!(bar, "doing the thing");