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1.0.0[][src]Struct std::io::Stderr

pub struct Stderr { /* fields omitted */ }

A handle to the standard error stream of a process.

For more information, see the io::stderr method.

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.

Methods

impl Stderr[src]

Important traits for StderrLock<'_>
pub fn lock(&self) -> StderrLock[src]

Locks this handle to the standard error stream, returning a writable guard.

The lock is released when the returned lock goes out of scope. The returned guard also implements the Write trait for writing data.

Examples

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

fn foo() -> io::Result<()> {
    let stderr = io::stderr();
    let mut handle = stderr.lock();

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

    Ok(())
}Run

Trait Implementations

impl Write for Stderr[src]

fn write_vectored(&mut self, bufs: &[IoVec]) -> Result<usize>[src]

🔬 This is a nightly-only experimental API. (iovec #58452)

Like write, except that it writes from a slice of buffers. Read more

Important traits for &'_ mut I
fn by_ref(&mut self) -> &mut Self where
    Self: Sized
[src]

Creates a "by reference" adaptor for this instance of Write. Read more

impl AsRawFd for Stderr
1.21.0
[src]

impl AsRawHandle for Stderr
1.21.0
[src]

impl Debug for Stderr
1.16.0
[src]

Auto Trait Implementations

impl Send for Stderr

impl Sync for Stderr

Blanket Implementations

impl<T> From for T[src]

impl<T, U> TryFrom for T where
    U: Into<T>, 
[src]

type Error = Infallible

The type returned in the event of a conversion error.

impl<T, U> TryInto for T where
    U: TryFrom<T>, 
[src]

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

impl<T, U> Into for T where
    U: From<T>, 
[src]

impl<T> Borrow for T where
    T: ?Sized
[src]

impl<T> BorrowMut for T where
    T: ?Sized
[src]

impl<T> Any for T where
    T: 'static + ?Sized
[src]