# Struct std::process::ChildStderr 1.0.0[−][src]

    pub struct ChildStderr { /* fields omitted */ }

A handle to a child process's stderr.

This struct is used in the `stderr` field on `Child`.

When an instance of `ChildStderr` is dropped, the `ChildStderr`'s underlying file handle will be closed.

## Trait Implementations

###

`impl Read for ChildStderr`

[src]

####

`fn read(&mut self, buf: &mut [u8]) -> Result<usize>`

[src]

Pull some bytes from this source into the specified buffer, returning how many bytes were read. Read more

####

`unsafe fn initializer(&self) -> Initializer`

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🔬 This is a nightly-only experimental API. (`read_initializer` #42788)

Determines if this `Read`er can work with buffers of uninitialized memory. Read more

####

`fn read_to_end(&mut self, buf: &mut Vec<u8>) -> Result<usize>`

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Read all bytes until EOF in this source, placing them into `buf`. Read more

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`fn read_to_string(&mut self, buf: &mut String) -> Result<usize>`

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Read all bytes until EOF in this source, appending them to `buf`. Read more

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`fn read_exact(&mut self, buf: &mut [u8]) -> Result<()>`

1.6.0
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Read the exact number of bytes required to fill `buf`. Read more

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ⓘImportant traits for &'a mut I

### Important traits for &'a mut I

`impl<'a, I> Iterator for &'a mut I where
I: Iterator + ?Sized, type Item = <I as Iterator>::Item;impl<'a, R: Read + ?Sized> Read for &'a mut Rimpl<'a, W: Write + ?Sized> Write for &'a mut W`

`fn by_ref(&mut self) -> &mut Self where Self: Sized,`

[src]

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

####
ⓘImportant traits for Bytes<R>

### Important traits for Bytes<R>

`impl<R: Read> Iterator for Bytes<R> type Item = Result<u8>;`

`fn bytes(self) -> Bytes<Self> where Self: Sized,`

[src]

Transforms this `Read` instance to an [`Iterator`] over its bytes. Read more

####
ⓘImportant traits for Chars<R>

### Important traits for Chars<R>

`impl<R: Read> Iterator for Chars<R> type Item = Result<char, CharsError>;`

`fn chars(self) -> Chars<Self> where Self: Sized,`

[src]

Deprecated since 1.27.0

: Use str::from_utf8 instead: https://doc.rust-lang.org/nightly/std/str/struct.Utf8Error.html#examples

🔬 This is a nightly-only experimental API. (`io` #27802)

the semantics of a partial read/write of where errors happen is currently unclear and may change

Transforms this `Read` instance to an [`Iterator`] over [`char`]s. Read more

####
ⓘImportant traits for Chain<T, U>

### Important traits for Chain<T, U>

`impl<T: Read, U: Read> Read for Chain<T, U>`

`fn chain<R: Read>(self, next: R) -> Chain<Self, R> where Self: Sized,`

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Creates an adaptor which will chain this stream with another. Read more

####
ⓘImportant traits for Take<T>

### Important traits for Take<T>

`impl<T: Read> Read for Take<T>`

`fn take(self, limit: u64) -> Take<Self> where Self: Sized,`

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Creates an adaptor which will read at most `limit` bytes from it. Read more

###

`impl Debug for ChildStderr`

1.16.0
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`fn fmt(&self, f: &mut Formatter) -> Result`

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Formats the value using the given formatter. Read more

###

`impl From<ChildStderr> for Stdio`

1.20.0
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`fn from(child: ChildStderr) -> Stdio`

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Performs the conversion.

###

`impl AsRawFd for ChildStderr`

1.2.0
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`fn as_raw_fd(&self) -> RawFd`

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This is supported on Unix only.

Extracts the raw file descriptor. Read more

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`impl IntoRawFd for ChildStderr`

1.4.0
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####

`fn into_raw_fd(self) -> RawFd`

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This is supported on Unix only.

Consumes this object, returning the raw underlying file descriptor. Read more

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`impl AsRawHandle for ChildStderr`

1.2.0
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####

`fn as_raw_handle(&self) -> RawHandle`

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This is supported on Windows only.

Extracts the raw handle, without taking any ownership.

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`impl IntoRawHandle for ChildStderr`

1.4.0
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`fn into_raw_handle(self) -> RawHandle`

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This is supported on Windows only.

Consumes this object, returning the raw underlying handle. Read more

## Auto Trait Implementations

###

`impl Send for ChildStderr`

###

`impl Sync for ChildStderr`

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