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//! Echoes lines read on stdin to stdout.
use async_std::io;
use async_std::prelude::*;
use async_std::task;
fn main() -> io::Result<()> {
task::block_on(async {
let stdin = io::stdin();
let mut stdout = io::stdout();
let mut line = String::new();
loop {
// Read a line from stdin.
let n = stdin.read_line(&mut line).await?;
// If this is the end of stdin, return.
if n == 0 {
return Ok(());
}
// Write the line to stdout.
stdout.write_all(line.as_bytes()).await?;
stdout.flush().await?;
line.clear();
}
})
}
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