Struct std::io::Chain1.0.0 [] [src]

pub struct Chain<T, U> { /* fields omitted */ }

Adaptor to chain together two readers.

This struct is generally created by calling chain on a reader. Please see the documentation of chain for more details.

Methods

impl<T, U> Chain<T, U>
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1.20.0
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Consumes the Chain, returning the wrapped readers.

Examples

use std::io::prelude::*;
use std::fs::File;

let mut foo_file = File::open("foo.txt")?;
let mut bar_file = File::open("bar.txt")?;

let chain = foo_file.chain(bar_file);
let (foo_file, bar_file) = chain.into_inner();Run

1.20.0
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Gets references to the underlying readers in this Chain.

Examples

use std::io::prelude::*;
use std::fs::File;

let mut foo_file = File::open("foo.txt")?;
let mut bar_file = File::open("bar.txt")?;

let chain = foo_file.chain(bar_file);
let (foo_file, bar_file) = chain.get_ref();Run

1.20.0
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Gets mutable references to the underlying readers in this Chain.

Care should be taken to avoid modifying the internal I/O state of the underlying readers as doing so may corrupt the internal state of this Chain.

Examples

use std::io::prelude::*;
use std::fs::File;

let mut foo_file = File::open("foo.txt")?;
let mut bar_file = File::open("bar.txt")?;

let mut chain = foo_file.chain(bar_file);
let (foo_file, bar_file) = chain.get_mut();Run

Trait Implementations

impl<T: Debug, U: Debug> Debug for Chain<T, U>
1.16.0
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Formats the value using the given formatter.

impl<T: Read, U: Read> Read for Chain<T, U>
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Pull some bytes from this source into the specified buffer, returning how many bytes were read. Read more

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

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

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

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

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

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

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

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🔬 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

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

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

impl<T: BufRead, U: BufRead> BufRead for Chain<T, U>
1.9.0
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Fills the internal buffer of this object, returning the buffer contents. Read more

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Tells this buffer that amt bytes have been consumed from the buffer, so they should no longer be returned in calls to read. Read more

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Read all bytes into buf until the delimiter byte or EOF is reached. Read more

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Read all bytes until a newline (the 0xA byte) is reached, and append them to the provided buffer. Read more

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Returns an iterator over the contents of this reader split on the byte byte. Read more

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Returns an iterator over the lines of this reader. Read more