vendor/indicatif/examples/fastbar.rs

   1 use indicatif::ProgressBar;
   2
   3 fn many_units_of_easy_work(n: u64, label: &str) {
   4     let pb = ProgressBar::new(n);
   5
   6     let mut sum = 0;
   7     for i in 0..n {
   8         // Any quick computation, followed by an update to the progress bar.
   9         sum += 2 * i + 3;
  10         pb.inc(1);
  11     }
  12     pb.finish();
  13
  14     println!("[{}] Sum ({}) calculated in {:?}", label, sum, pb.elapsed());
  15 }
  16
  17 fn main() {
  18     const N: u64 = 1 << 20;
  19
  20     // Perform a long sequence of many simple computations monitored by a
  21     // default progress bar.
  22     many_units_of_easy_work(N, "Default progress bar ");
  23 }