pub struct Stderr { /* fields omitted */ }
A handle to the standard error stream of a process.
For more information, see the io::stderr
method.
impl Stderr
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pub fn lock(&self) -> StderrLock
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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.
use std::io::{self, Write}; fn foo() -> io::Result<()> { let stderr = io::stderr(); let mut handle = stderr.lock(); handle.write(b"hello world")?; Ok(()) }
impl Debug for Stderr
fn fmt(&self, f: &mut Formatter) -> Result
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Formats the value using the given formatter. Read more
impl Write for Stderr
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fn write(&mut self, buf: &[u8]) -> Result<usize>
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Write a buffer into this object, returning how many bytes were written. Read more
fn flush(&mut self) -> Result<()>
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Flush this output stream, ensuring that all intermediately buffered contents reach their destination. Read more
fn write_all(&mut self, buf: &[u8]) -> Result<()>
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Attempts to write an entire buffer into this write. Read more
fn write_fmt(&mut self, args: Arguments) -> Result<()>
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Writes a formatted string into this writer, returning any error encountered. Read more
fn by_ref(&mut self) -> &mut Self where
Self: Sized,
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Creates a "by reference" adaptor for this instance of Write
. Read more
impl AsRawFd for Stderr
fn as_raw_fd(&self) -> RawFd
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Extracts the raw file descriptor. Read more
impl AsRawHandle for Stderr
fn as_raw_handle(&self) -> RawHandle
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Extracts the raw handle, without taking any ownership.
© 2010 The Rust Project Developers
Licensed under the Apache License, Version 2.0 or the MIT license, at your option.
https://doc.rust-lang.org/std/io/struct.Stderr.html