Struct std::io::Stderr 1.0.0[−][src]
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.
Implementations
impl Stderr
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impl Stderr
[src]pub fn lock(&self) -> StderrLock<'_>ⓘNotable traits for StderrLock<'_>
impl Write for StderrLock<'_>
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Notable traits for StderrLock<'_>
impl Write for 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_all(b"hello world")?; Ok(()) }Run
Trait Implementations
impl AsRawHandle for Stderr
1.21.0[src]
impl AsRawHandle for Stderr
1.21.0[src]This is supported on Windows only.
fn as_raw_handle(&self) -> RawHandle
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impl Write for Stderr
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impl Write for Stderr
[src]fn write(&mut self, buf: &[u8]) -> Result<usize>
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fn write_vectored(&mut self, bufs: &[IoSlice<'_>]) -> Result<usize>
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fn is_write_vectored(&self) -> bool
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fn flush(&mut self) -> Result<()>
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fn write_all(&mut self, buf: &[u8]) -> Result<()>
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fn write_all_vectored(&mut self, bufs: &mut [IoSlice<'_>]) -> Result<()>
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fn write_fmt(&mut self, args: Arguments<'_>) -> Result<()>
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fn by_ref(&mut self) -> &mut SelfⓘNotable traits for &'_ mut I
impl<'_, I> Iterator for &'_ mut I where
I: Iterator + ?Sized, type Item = <I as Iterator>::Item;impl<'_, F> Future for &'_ mut F where
F: Future + Unpin + ?Sized, type Output = <F as Future>::Output;impl<R: Read + ?Sized> Read for &mut Rimpl<W: Write + ?Sized> Write for &mut W
where
Self: Sized,
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Notable traits for &'_ mut I
impl<'_, I> Iterator for &'_ mut I where
I: Iterator + ?Sized, type Item = <I as Iterator>::Item;impl<'_, F> Future for &'_ mut F where
F: Future + Unpin + ?Sized, type Output = <F as Future>::Output;impl<R: Read + ?Sized> Read for &mut Rimpl<W: Write + ?Sized> Write for &mut W
Self: Sized,
impl Write for &Stderr
1.48.0[src]
impl Write for &Stderr
1.48.0[src]fn write(&mut self, buf: &[u8]) -> Result<usize>
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fn write_vectored(&mut self, bufs: &[IoSlice<'_>]) -> Result<usize>
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fn is_write_vectored(&self) -> bool
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fn flush(&mut self) -> Result<()>
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fn write_all(&mut self, buf: &[u8]) -> Result<()>
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fn write_all_vectored(&mut self, bufs: &mut [IoSlice<'_>]) -> Result<()>
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fn write_fmt(&mut self, args: Arguments<'_>) -> Result<()>
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fn by_ref(&mut self) -> &mut SelfⓘNotable traits for &'_ mut I
impl<'_, I> Iterator for &'_ mut I where
I: Iterator + ?Sized, type Item = <I as Iterator>::Item;impl<'_, F> Future for &'_ mut F where
F: Future + Unpin + ?Sized, type Output = <F as Future>::Output;impl<R: Read + ?Sized> Read for &mut Rimpl<W: Write + ?Sized> Write for &mut W
where
Self: Sized,
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Notable traits for &'_ mut I
impl<'_, I> Iterator for &'_ mut I where
I: Iterator + ?Sized, type Item = <I as Iterator>::Item;impl<'_, F> Future for &'_ mut F where
F: Future + Unpin + ?Sized, type Output = <F as Future>::Output;impl<R: Read + ?Sized> Read for &mut Rimpl<W: Write + ?Sized> Write for &mut W
Self: Sized,
Auto Trait Implementations
impl RefUnwindSafe for Stderr
impl Send for Stderr
impl Sync for Stderr
impl Unpin for Stderr
impl UnwindSafe for Stderr
Blanket Implementations
impl<T> Borrow<T> for T where
T: ?Sized,
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impl<T> Borrow<T> for T where
T: ?Sized,
[src]pub fn borrow(&self) -> &TⓘNotable traits for &'_ mut I
impl<'_, I> Iterator for &'_ mut I where
I: Iterator + ?Sized, type Item = <I as Iterator>::Item;impl<'_, F> Future for &'_ mut F where
F: Future + Unpin + ?Sized, type Output = <F as Future>::Output;impl<R: Read + ?Sized> Read for &mut Rimpl<W: Write + ?Sized> Write for &mut W
[src]
Notable traits for &'_ mut I
impl<'_, I> Iterator for &'_ mut I where
I: Iterator + ?Sized, type Item = <I as Iterator>::Item;impl<'_, F> Future for &'_ mut F where
F: Future + Unpin + ?Sized, type Output = <F as Future>::Output;impl<R: Read + ?Sized> Read for &mut Rimpl<W: Write + ?Sized> Write for &mut W
impl<T> BorrowMut<T> for T where
T: ?Sized,
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impl<T> BorrowMut<T> for T where
T: ?Sized,
[src]pub fn borrow_mut(&mut self) -> &mut TⓘNotable traits for &'_ mut I
impl<'_, I> Iterator for &'_ mut I where
I: Iterator + ?Sized, type Item = <I as Iterator>::Item;impl<'_, F> Future for &'_ mut F where
F: Future + Unpin + ?Sized, type Output = <F as Future>::Output;impl<R: Read + ?Sized> Read for &mut Rimpl<W: Write + ?Sized> Write for &mut W
[src]
Notable traits for &'_ mut I
impl<'_, I> Iterator for &'_ mut I where
I: Iterator + ?Sized, type Item = <I as Iterator>::Item;impl<'_, F> Future for &'_ mut F where
F: Future + Unpin + ?Sized, type Output = <F as Future>::Output;impl<R: Read + ?Sized> Read for &mut Rimpl<W: Write + ?Sized> Write for &mut W