Struct artifact_app::dev_prefix::io::Stderr 1.0.0
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pub struct Stderr { /* fields omitted */ }
A handle to the standard error stream of a process.
For more information, see the io::stderr
method.
Methods
impl Stderr
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fn lock(&self) -> StderrLock
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(()) }
Trait Implementations
impl Write for Stderr
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fn write(&mut self, buf: &[u8]) -> Result<usize, Error>
Write a buffer into this object, returning how many bytes were written. Read more
fn flush(&mut self) -> Result<(), Error>
Flush this output stream, ensuring that all intermediately buffered contents reach their destination. Read more
fn write_all(&mut self, buf: &[u8]) -> Result<(), Error>
Attempts to write an entire buffer into this write. Read more
fn write_fmt(&mut self, args: Arguments) -> Result<(), Error>
Writes a formatted string into this writer, returning any error encountered. Read more
fn by_ref(&mut self) -> &mut Self
Creates a "by reference" adaptor for this instance of Write
. Read more