# Function std::io::stderr_locked
[−][src]

    pub fn stderr_locked() -> StderrLock<'static>ⓘNotable traits for StderrLock<'_>impl Write for StderrLock<'_>

🔬 This is a nightly-only experimental API. (`stdio_locked` #86845)
Expand description

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

This handle is not buffered.

#### Note: Windows Portability Consideration

When operating in a console, the Windows implementation of this stream does not support non-UTF-8 byte sequences. Attempting to write bytes that are not valid UTF-8 will return an error.

## Example

    #![feature(stdio_locked)]
    use std::io::{self, Write};

    fn main() -> io::Result<()> {
        let mut handle = io::stderr_locked();

        handle.write_all(b"hello world")?;

        Ok(())
    }

Run