19 lines
444 B
Rust
19 lines
444 B
Rust
use std::error::Error;
|
|
use std::io::{self, Write};
|
|
|
|
use bstr::{io::BufReadExt, ByteSlice};
|
|
|
|
fn main() -> Result<(), Box<dyn Error>> {
|
|
let stdin = io::stdin();
|
|
let mut stdout = io::BufWriter::new(io::stdout());
|
|
|
|
let mut upper = vec![];
|
|
stdin.lock().for_byte_line_with_terminator(|line| {
|
|
upper.clear();
|
|
line.to_uppercase_into(&mut upper);
|
|
stdout.write_all(&upper)?;
|
|
Ok(true)
|
|
})?;
|
|
Ok(())
|
|
}
|