Function std::io::stderr

pub fn stderr() -> Stderr

Constructs a new handle to the standard error of the current process.

This handle is not buffered.

Examples

Using implicit synchronization:

fn main() { use std::io::{self, Write}; fn foo() -> io::Result<()> { try!(io::stderr().write(b"hello world")); Ok(()) } }

use std::io::{self, Write};

try!(io::stderr().write(b"hello world"));

Using explicit synchronization:

fn main() { use std::io::{self, Write}; fn foo() -> io::Result<()> { let stderr = io::stderr(); let mut handle = stderr.lock(); try!(handle.write(b"hello world")); Ok(()) } }

use std::io::{self, Write};

let stderr = io::stderr();
let mut handle = stderr.lock();

try!(handle.write(b"hello world"));