Struct kvarn::prelude::utils::prelude::io::Cursor

1.0.0 · source ·
pub struct Cursor<T> { /* private fields */ }
Expand description

A Cursor wraps an in-memory buffer and provides it with a Seek implementation.

Cursors are used with in-memory buffers, anything implementing AsRef<[u8]>, to allow them to implement Read and/or Write, allowing these buffers to be used anywhere you might use a reader or writer that does actual I/O.

The standard library implements some I/O traits on various types which are commonly used as a buffer, like Cursor<Vec<u8>> and Cursor<&[u8]>.

§Examples

We may want to write bytes to a File in our production code, but use an in-memory buffer in our tests. We can do this with Cursor:

use std::io::prelude::*;
use std::io::{self, SeekFrom};
use std::fs::File;

// a library function we've written
fn write_ten_bytes_at_end<W: Write + Seek>(mut writer: W) -> io::Result<()> {
    writer.seek(SeekFrom::End(-10))?;

    for i in 0..10 {
        writer.write(&[i])?;
    }

    // all went well
    Ok(())
}

// Here's some code that uses this library function.
//
// We might want to use a BufReader here for efficiency, but let's
// keep this example focused.
let mut file = File::create("foo.txt")?;
// First, we need to allocate 10 bytes to be able to write into.
file.set_len(10)?;

write_ten_bytes_at_end(&mut file)?;

// now let's write a test
#[test]
fn test_writes_bytes() {
    // setting up a real File is much slower than an in-memory buffer,
    // let's use a cursor instead
    use std::io::Cursor;
    let mut buff = Cursor::new(vec![0; 15]);

    write_ten_bytes_at_end(&mut buff).unwrap();

    assert_eq!(&buff.get_ref()[5..15], &[0, 1, 2, 3, 4, 5, 6, 7, 8, 9]);
}

Implementations§

source§

impl<T> Cursor<T>

1.0.0 (const: 1.79.0) · source

pub const fn new(inner: T) -> Cursor<T>

Creates a new cursor wrapping the provided underlying in-memory buffer.

Cursor initial position is 0 even if underlying buffer (e.g., Vec) is not empty. So writing to cursor starts with overwriting Vec content, not with appending to it.

§Examples
use std::io::Cursor;

let buff = Cursor::new(Vec::new());
1.0.0 · source

pub fn into_inner(self) -> T

Consumes this cursor, returning the underlying value.

§Examples
use std::io::Cursor;

let buff = Cursor::new(Vec::new());

let vec = buff.into_inner();
1.0.0 (const: 1.79.0) · source

pub const fn get_ref(&self) -> &T

Gets a reference to the underlying value in this cursor.

§Examples
use std::io::Cursor;

let buff = Cursor::new(Vec::new());

let reference = buff.get_ref();
1.0.0 · source

pub fn get_mut(&mut self) -> &mut T

Gets a mutable reference to the underlying value in this cursor.

Care should be taken to avoid modifying the internal I/O state of the underlying value as it may corrupt this cursor’s position.

§Examples
use std::io::Cursor;

let mut buff = Cursor::new(Vec::new());

let reference = buff.get_mut();
1.0.0 (const: 1.79.0) · source

pub const fn position(&self) -> u64

Returns the current position of this cursor.

§Examples
use std::io::Cursor;
use std::io::prelude::*;
use std::io::SeekFrom;

let mut buff = Cursor::new(vec![1, 2, 3, 4, 5]);

assert_eq!(buff.position(), 0);

buff.seek(SeekFrom::Current(2)).unwrap();
assert_eq!(buff.position(), 2);

buff.seek(SeekFrom::Current(-1)).unwrap();
assert_eq!(buff.position(), 1);
1.0.0 · source

pub fn set_position(&mut self, pos: u64)

Sets the position of this cursor.

§Examples
use std::io::Cursor;

let mut buff = Cursor::new(vec![1, 2, 3, 4, 5]);

assert_eq!(buff.position(), 0);

buff.set_position(2);
assert_eq!(buff.position(), 2);

buff.set_position(4);
assert_eq!(buff.position(), 4);
source§

impl<T> Cursor<T>
where T: AsRef<[u8]>,

source

pub fn remaining_slice(&self) -> &[u8]

🔬This is a nightly-only experimental API. (cursor_remaining)

Returns the remaining slice.

§Examples
#![feature(cursor_remaining)]
use std::io::Cursor;

let mut buff = Cursor::new(vec![1, 2, 3, 4, 5]);

assert_eq!(buff.remaining_slice(), &[1, 2, 3, 4, 5]);

buff.set_position(2);
assert_eq!(buff.remaining_slice(), &[3, 4, 5]);

buff.set_position(4);
assert_eq!(buff.remaining_slice(), &[5]);

buff.set_position(6);
assert_eq!(buff.remaining_slice(), &[]);
source

pub fn is_empty(&self) -> bool

🔬This is a nightly-only experimental API. (cursor_remaining)

Returns true if the remaining slice is empty.

§Examples
#![feature(cursor_remaining)]
use std::io::Cursor;

let mut buff = Cursor::new(vec![1, 2, 3, 4, 5]);

buff.set_position(2);
assert!(!buff.is_empty());

buff.set_position(5);
assert!(buff.is_empty());

buff.set_position(10);
assert!(buff.is_empty());

Trait Implementations§

§

impl<T> AsyncBufRead for Cursor<T>
where T: AsRef<[u8]> + Unpin,

§

fn poll_fill_buf( self: Pin<&mut Cursor<T>>, _cx: &mut Context<'_> ) -> Poll<Result<&[u8], Error>>

Attempts to return the contents of the internal buffer, filling it with more data from the inner reader if it is empty. Read more
§

fn consume(self: Pin<&mut Cursor<T>>, amt: usize)

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

impl<T> AsyncRead for Cursor<T>
where T: AsRef<[u8]> + Unpin,

§

fn poll_read( self: Pin<&mut Cursor<T>>, _cx: &mut Context<'_>, buf: &mut ReadBuf<'_> ) -> Poll<Result<(), Error>>

Attempts to read from the AsyncRead into buf. Read more
§

impl<T> AsyncSeek for Cursor<T>
where T: AsRef<[u8]> + Unpin,

§

fn start_seek(self: Pin<&mut Cursor<T>>, pos: SeekFrom) -> Result<(), Error>

Attempts to seek to an offset, in bytes, in a stream. Read more
§

fn poll_complete( self: Pin<&mut Cursor<T>>, _: &mut Context<'_> ) -> Poll<Result<u64, Error>>

Waits for a seek operation to complete. Read more
§

impl AsyncWrite for Cursor<&mut [u8]>

§

fn poll_write( self: Pin<&mut Cursor<&mut [u8]>>, _: &mut Context<'_>, buf: &[u8] ) -> Poll<Result<usize, Error>>

Attempt to write bytes from buf into the object. Read more
§

fn poll_write_vectored( self: Pin<&mut Cursor<&mut [u8]>>, _: &mut Context<'_>, bufs: &[IoSlice<'_>] ) -> Poll<Result<usize, Error>>

Like poll_write, except that it writes from a slice of buffers. Read more
§

fn is_write_vectored(&self) -> bool

Determines if this writer has an efficient poll_write_vectored implementation. Read more
§

fn poll_flush( self: Pin<&mut Cursor<&mut [u8]>>, _: &mut Context<'_> ) -> Poll<Result<(), Error>>

Attempts to flush the object, ensuring that any buffered data reach their destination. Read more
§

fn poll_shutdown( self: Pin<&mut Cursor<&mut [u8]>>, cx: &mut Context<'_> ) -> Poll<Result<(), Error>>

Initiates or attempts to shut down this writer, returning success when the I/O connection has completely shut down. Read more
§

impl AsyncWrite for Cursor<&mut Vec<u8>>

§

fn poll_write( self: Pin<&mut Cursor<&mut Vec<u8>>>, _: &mut Context<'_>, buf: &[u8] ) -> Poll<Result<usize, Error>>

Attempt to write bytes from buf into the object. Read more
§

fn poll_write_vectored( self: Pin<&mut Cursor<&mut Vec<u8>>>, _: &mut Context<'_>, bufs: &[IoSlice<'_>] ) -> Poll<Result<usize, Error>>

Like poll_write, except that it writes from a slice of buffers. Read more
§

fn is_write_vectored(&self) -> bool

Determines if this writer has an efficient poll_write_vectored implementation. Read more
§

fn poll_flush( self: Pin<&mut Cursor<&mut Vec<u8>>>, _: &mut Context<'_> ) -> Poll<Result<(), Error>>

Attempts to flush the object, ensuring that any buffered data reach their destination. Read more
§

fn poll_shutdown( self: Pin<&mut Cursor<&mut Vec<u8>>>, cx: &mut Context<'_> ) -> Poll<Result<(), Error>>

Initiates or attempts to shut down this writer, returning success when the I/O connection has completely shut down. Read more
§

impl AsyncWrite for Cursor<Box<[u8]>>

§

fn poll_write( self: Pin<&mut Cursor<Box<[u8]>>>, _: &mut Context<'_>, buf: &[u8] ) -> Poll<Result<usize, Error>>

Attempt to write bytes from buf into the object. Read more
§

fn poll_write_vectored( self: Pin<&mut Cursor<Box<[u8]>>>, _: &mut Context<'_>, bufs: &[IoSlice<'_>] ) -> Poll<Result<usize, Error>>

Like poll_write, except that it writes from a slice of buffers. Read more
§

fn is_write_vectored(&self) -> bool

Determines if this writer has an efficient poll_write_vectored implementation. Read more
§

fn poll_flush( self: Pin<&mut Cursor<Box<[u8]>>>, _: &mut Context<'_> ) -> Poll<Result<(), Error>>

Attempts to flush the object, ensuring that any buffered data reach their destination. Read more
§

fn poll_shutdown( self: Pin<&mut Cursor<Box<[u8]>>>, cx: &mut Context<'_> ) -> Poll<Result<(), Error>>

Initiates or attempts to shut down this writer, returning success when the I/O connection has completely shut down. Read more
§

impl AsyncWrite for Cursor<Vec<u8>>

§

fn poll_write( self: Pin<&mut Cursor<Vec<u8>>>, _: &mut Context<'_>, buf: &[u8] ) -> Poll<Result<usize, Error>>

Attempt to write bytes from buf into the object. Read more
§

fn poll_write_vectored( self: Pin<&mut Cursor<Vec<u8>>>, _: &mut Context<'_>, bufs: &[IoSlice<'_>] ) -> Poll<Result<usize, Error>>

Like poll_write, except that it writes from a slice of buffers. Read more
§

fn is_write_vectored(&self) -> bool

Determines if this writer has an efficient poll_write_vectored implementation. Read more
§

fn poll_flush( self: Pin<&mut Cursor<Vec<u8>>>, _: &mut Context<'_> ) -> Poll<Result<(), Error>>

Attempts to flush the object, ensuring that any buffered data reach their destination. Read more
§

fn poll_shutdown( self: Pin<&mut Cursor<Vec<u8>>>, cx: &mut Context<'_> ) -> Poll<Result<(), Error>>

Initiates or attempts to shut down this writer, returning success when the I/O connection has completely shut down. Read more
§

impl<T> Buf for Cursor<T>
where T: AsRef<[u8]>,

Available on crate feature std only.
§

fn remaining(&self) -> usize

Returns the number of bytes between the current position and the end of the buffer. Read more
§

fn chunk(&self) -> &[u8]

Returns a slice starting at the current position and of length between 0 and Buf::remaining(). Note that this can return shorter slice (this allows non-continuous internal representation). Read more
§

fn advance(&mut self, cnt: usize)

Advance the internal cursor of the Buf Read more
§

fn chunks_vectored<'a>(&'a self, dst: &mut [IoSlice<'a>]) -> usize

Fills dst with potentially multiple slices starting at self’s current position. Read more
§

fn has_remaining(&self) -> bool

Returns true if there are any more bytes to consume Read more
§

fn copy_to_slice(&mut self, dst: &mut [u8])

Copies bytes from self into dst. Read more
§

fn get_u8(&mut self) -> u8

Gets an unsigned 8 bit integer from self. Read more
§

fn get_i8(&mut self) -> i8

Gets a signed 8 bit integer from self. Read more
§

fn get_u16(&mut self) -> u16

Gets an unsigned 16 bit integer from self in big-endian byte order. Read more
§

fn get_u16_le(&mut self) -> u16

Gets an unsigned 16 bit integer from self in little-endian byte order. Read more
§

fn get_u16_ne(&mut self) -> u16

Gets an unsigned 16 bit integer from self in native-endian byte order. Read more
§

fn get_i16(&mut self) -> i16

Gets a signed 16 bit integer from self in big-endian byte order. Read more
§

fn get_i16_le(&mut self) -> i16

Gets a signed 16 bit integer from self in little-endian byte order. Read more
§

fn get_i16_ne(&mut self) -> i16

Gets a signed 16 bit integer from self in native-endian byte order. Read more
§

fn get_u32(&mut self) -> u32

Gets an unsigned 32 bit integer from self in the big-endian byte order. Read more
§

fn get_u32_le(&mut self) -> u32

Gets an unsigned 32 bit integer from self in the little-endian byte order. Read more
§

fn get_u32_ne(&mut self) -> u32

Gets an unsigned 32 bit integer from self in native-endian byte order. Read more
§

fn get_i32(&mut self) -> i32

Gets a signed 32 bit integer from self in big-endian byte order. Read more
§

fn get_i32_le(&mut self) -> i32

Gets a signed 32 bit integer from self in little-endian byte order. Read more
§

fn get_i32_ne(&mut self) -> i32

Gets a signed 32 bit integer from self in native-endian byte order. Read more
§

fn get_u64(&mut self) -> u64

Gets an unsigned 64 bit integer from self in big-endian byte order. Read more
§

fn get_u64_le(&mut self) -> u64

Gets an unsigned 64 bit integer from self in little-endian byte order. Read more
§

fn get_u64_ne(&mut self) -> u64

Gets an unsigned 64 bit integer from self in native-endian byte order. Read more
§

fn get_i64(&mut self) -> i64

Gets a signed 64 bit integer from self in big-endian byte order. Read more
§

fn get_i64_le(&mut self) -> i64

Gets a signed 64 bit integer from self in little-endian byte order. Read more
§

fn get_i64_ne(&mut self) -> i64

Gets a signed 64 bit integer from self in native-endian byte order. Read more
§

fn get_u128(&mut self) -> u128

Gets an unsigned 128 bit integer from self in big-endian byte order. Read more
§

fn get_u128_le(&mut self) -> u128

Gets an unsigned 128 bit integer from self in little-endian byte order. Read more
§

fn get_u128_ne(&mut self) -> u128

Gets an unsigned 128 bit integer from self in native-endian byte order. Read more
§

fn get_i128(&mut self) -> i128

Gets a signed 128 bit integer from self in big-endian byte order. Read more
§

fn get_i128_le(&mut self) -> i128

Gets a signed 128 bit integer from self in little-endian byte order. Read more
§

fn get_i128_ne(&mut self) -> i128

Gets a signed 128 bit integer from self in native-endian byte order. Read more
§

fn get_uint(&mut self, nbytes: usize) -> u64

Gets an unsigned n-byte integer from self in big-endian byte order. Read more
§

fn get_uint_le(&mut self, nbytes: usize) -> u64

Gets an unsigned n-byte integer from self in little-endian byte order. Read more
§

fn get_uint_ne(&mut self, nbytes: usize) -> u64

Gets an unsigned n-byte integer from self in native-endian byte order. Read more
§

fn get_int(&mut self, nbytes: usize) -> i64

Gets a signed n-byte integer from self in big-endian byte order. Read more
§

fn get_int_le(&mut self, nbytes: usize) -> i64

Gets a signed n-byte integer from self in little-endian byte order. Read more
§

fn get_int_ne(&mut self, nbytes: usize) -> i64

Gets a signed n-byte integer from self in native-endian byte order. Read more
§

fn get_f32(&mut self) -> f32

Gets an IEEE754 single-precision (4 bytes) floating point number from self in big-endian byte order. Read more
§

fn get_f32_le(&mut self) -> f32

Gets an IEEE754 single-precision (4 bytes) floating point number from self in little-endian byte order. Read more
§

fn get_f32_ne(&mut self) -> f32

Gets an IEEE754 single-precision (4 bytes) floating point number from self in native-endian byte order. Read more
§

fn get_f64(&mut self) -> f64

Gets an IEEE754 double-precision (8 bytes) floating point number from self in big-endian byte order. Read more
§

fn get_f64_le(&mut self) -> f64

Gets an IEEE754 double-precision (8 bytes) floating point number from self in little-endian byte order. Read more
§

fn get_f64_ne(&mut self) -> f64

Gets an IEEE754 double-precision (8 bytes) floating point number from self in native-endian byte order. Read more
§

fn copy_to_bytes(&mut self, len: usize) -> Bytes

Consumes len bytes inside self and returns new instance of Bytes with this data. Read more
§

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

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

fn chain<U>(self, next: U) -> Chain<Self, U>
where U: Buf, Self: Sized,

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

fn reader(self) -> Reader<Self>
where Self: Sized,

Creates an adaptor which implements the Read trait for self. Read more
1.0.0 · source§

impl<T> BufRead for Cursor<T>
where T: AsRef<[u8]>,

source§

fn fill_buf(&mut self) -> Result<&[u8], Error>

Returns the contents of the internal buffer, filling it with more data from the inner reader if it is empty. Read more
source§

fn consume(&mut self, amt: usize)

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
source§

fn has_data_left(&mut self) -> Result<bool, Error>

🔬This is a nightly-only experimental API. (buf_read_has_data_left)
Check if the underlying Read has any data left to be read. Read more
1.0.0 · source§

fn read_until(&mut self, byte: u8, buf: &mut Vec<u8>) -> Result<usize, Error>

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

fn skip_until(&mut self, byte: u8) -> Result<usize, Error>

🔬This is a nightly-only experimental API. (bufread_skip_until)
Skip all bytes until the delimiter byte or EOF is reached. Read more
1.0.0 · source§

fn read_line(&mut self, buf: &mut String) -> Result<usize, Error>

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

fn split(self, byte: u8) -> Split<Self>
where Self: Sized,

Returns an iterator over the contents of this reader split on the byte byte. Read more
1.0.0 · source§

fn lines(self) -> Lines<Self>
where Self: Sized,

Returns an iterator over the lines of this reader. Read more
1.0.0 · source§

impl<T> Clone for Cursor<T>
where T: Clone,

source§

fn clone(&self) -> Cursor<T>

Returns a copy of the value. Read more
source§

fn clone_from(&mut self, other: &Cursor<T>)

Performs copy-assignment from source. Read more
1.0.0 · source§

impl<T> Debug for Cursor<T>
where T: Debug,

source§

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter. Read more
1.0.0 · source§

impl<T> Default for Cursor<T>
where T: Default,

source§

fn default() -> Cursor<T>

Returns the “default value” for a type. Read more
1.0.0 · source§

impl<T> PartialEq for Cursor<T>
where T: PartialEq,

source§

fn eq(&self, other: &Cursor<T>) -> bool

This method tests for self and other values to be equal, and is used by ==.
1.0.0 · source§

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
1.0.0 · source§

impl<T> Read for Cursor<T>
where T: AsRef<[u8]>,

source§

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

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

fn read_buf(&mut self, cursor: BorrowedCursor<'_>) -> Result<(), Error>

🔬This is a nightly-only experimental API. (read_buf)
Pull some bytes from this source into the specified buffer. Read more
source§

fn read_vectored(&mut self, bufs: &mut [IoSliceMut<'_>]) -> Result<usize, Error>

Like read, except that it reads into a slice of buffers. Read more
source§

fn is_read_vectored(&self) -> bool

🔬This is a nightly-only experimental API. (can_vector)
Determines if this Reader has an efficient read_vectored implementation. Read more
source§

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

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

fn read_buf_exact(&mut self, cursor: BorrowedCursor<'_>) -> Result<(), Error>

🔬This is a nightly-only experimental API. (read_buf)
Read the exact number of bytes required to fill cursor. Read more
source§

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

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

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

Read all bytes until EOF in this source, appending them to buf. Read more
1.0.0 · source§

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

Creates a “by reference” adaptor for this instance of Read. Read more
1.0.0 · source§

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

Transforms this Read instance to an Iterator over its bytes. Read more
1.0.0 · source§

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

Creates an adapter which will chain this stream with another. Read more
1.0.0 · source§

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

Creates an adapter which will read at most limit bytes from it. Read more
1.0.0 · source§

impl<T> Seek for Cursor<T>
where T: AsRef<[u8]>,

source§

fn seek(&mut self, style: SeekFrom) -> Result<u64, Error>

Seek to an offset, in bytes, in a stream. Read more
source§

fn stream_len(&mut self) -> Result<u64, Error>

🔬This is a nightly-only experimental API. (seek_stream_len)
Returns the length of this stream (in bytes). Read more
source§

fn stream_position(&mut self) -> Result<u64, Error>

Returns the current seek position from the start of the stream. Read more
1.55.0 · source§

fn rewind(&mut self) -> Result<(), Error>

Rewind to the beginning of a stream. Read more
1.80.0 · source§

fn seek_relative(&mut self, offset: i64) -> Result<(), Error>

Seeks relative to the current position. Read more
1.0.0 · source§

impl Write for Cursor<&mut [u8]>

source§

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

Write a buffer into this writer, returning how many bytes were written. Read more
source§

fn write_vectored(&mut self, bufs: &[IoSlice<'_>]) -> Result<usize, Error>

Like write, except that it writes from a slice of buffers. Read more
source§

fn is_write_vectored(&self) -> bool

🔬This is a nightly-only experimental API. (can_vector)
Determines if this Writer has an efficient write_vectored implementation. Read more
source§

fn flush(&mut self) -> Result<(), Error>

Flush this output stream, ensuring that all intermediately buffered contents reach their destination. Read more
1.0.0 · source§

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

Attempts to write an entire buffer into this writer. Read more
source§

fn write_all_vectored(&mut self, bufs: &mut [IoSlice<'_>]) -> Result<(), Error>

🔬This is a nightly-only experimental API. (write_all_vectored)
Attempts to write multiple buffers into this writer. Read more
1.0.0 · source§

fn write_fmt(&mut self, fmt: Arguments<'_>) -> Result<(), Error>

Writes a formatted string into this writer, returning any error encountered. Read more
1.0.0 · source§

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

Creates a “by reference” adapter for this instance of Write. Read more
1.25.0 · source§

impl<A> Write for Cursor<&mut Vec<u8, A>>
where A: Allocator,

source§

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

Write a buffer into this writer, returning how many bytes were written. Read more
source§

fn write_vectored(&mut self, bufs: &[IoSlice<'_>]) -> Result<usize, Error>

Like write, except that it writes from a slice of buffers. Read more
source§

fn is_write_vectored(&self) -> bool

🔬This is a nightly-only experimental API. (can_vector)
Determines if this Writer has an efficient write_vectored implementation. Read more
source§

fn flush(&mut self) -> Result<(), Error>

Flush this output stream, ensuring that all intermediately buffered contents reach their destination. Read more
1.0.0 · source§

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

Attempts to write an entire buffer into this writer. Read more
source§

fn write_all_vectored(&mut self, bufs: &mut [IoSlice<'_>]) -> Result<(), Error>

🔬This is a nightly-only experimental API. (write_all_vectored)
Attempts to write multiple buffers into this writer. Read more
1.0.0 · source§

fn write_fmt(&mut self, fmt: Arguments<'_>) -> Result<(), Error>

Writes a formatted string into this writer, returning any error encountered. Read more
1.0.0 · source§

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

Creates a “by reference” adapter for this instance of Write. Read more
1.61.0 · source§

impl<const N: usize> Write for Cursor<[u8; N]>

source§

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

Write a buffer into this writer, returning how many bytes were written. Read more
source§

fn write_vectored(&mut self, bufs: &[IoSlice<'_>]) -> Result<usize, Error>

Like write, except that it writes from a slice of buffers. Read more
source§

fn is_write_vectored(&self) -> bool

🔬This is a nightly-only experimental API. (can_vector)
Determines if this Writer has an efficient write_vectored implementation. Read more
source§

fn flush(&mut self) -> Result<(), Error>

Flush this output stream, ensuring that all intermediately buffered contents reach their destination. Read more
1.0.0 · source§

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

Attempts to write an entire buffer into this writer. Read more
source§

fn write_all_vectored(&mut self, bufs: &mut [IoSlice<'_>]) -> Result<(), Error>

🔬This is a nightly-only experimental API. (write_all_vectored)
Attempts to write multiple buffers into this writer. Read more
1.0.0 · source§

fn write_fmt(&mut self, fmt: Arguments<'_>) -> Result<(), Error>

Writes a formatted string into this writer, returning any error encountered. Read more
1.0.0 · source§

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

Creates a “by reference” adapter for this instance of Write. Read more
1.5.0 · source§

impl<A> Write for Cursor<Box<[u8], A>>
where A: Allocator,

source§

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

Write a buffer into this writer, returning how many bytes were written. Read more
source§

fn write_vectored(&mut self, bufs: &[IoSlice<'_>]) -> Result<usize, Error>

Like write, except that it writes from a slice of buffers. Read more
source§

fn is_write_vectored(&self) -> bool

🔬This is a nightly-only experimental API. (can_vector)
Determines if this Writer has an efficient write_vectored implementation. Read more
source§

fn flush(&mut self) -> Result<(), Error>

Flush this output stream, ensuring that all intermediately buffered contents reach their destination. Read more
1.0.0 · source§

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

Attempts to write an entire buffer into this writer. Read more
source§

fn write_all_vectored(&mut self, bufs: &mut [IoSlice<'_>]) -> Result<(), Error>

🔬This is a nightly-only experimental API. (write_all_vectored)
Attempts to write multiple buffers into this writer. Read more
1.0.0 · source§

fn write_fmt(&mut self, fmt: Arguments<'_>) -> Result<(), Error>

Writes a formatted string into this writer, returning any error encountered. Read more
1.0.0 · source§

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

Creates a “by reference” adapter for this instance of Write. Read more
1.0.0 · source§

impl<A> Write for Cursor<Vec<u8, A>>
where A: Allocator,

source§

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

Write a buffer into this writer, returning how many bytes were written. Read more
source§

fn write_vectored(&mut self, bufs: &[IoSlice<'_>]) -> Result<usize, Error>

Like write, except that it writes from a slice of buffers. Read more
source§

fn is_write_vectored(&self) -> bool

🔬This is a nightly-only experimental API. (can_vector)
Determines if this Writer has an efficient write_vectored implementation. Read more
source§

fn flush(&mut self) -> Result<(), Error>

Flush this output stream, ensuring that all intermediately buffered contents reach their destination. Read more
1.0.0 · source§

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

Attempts to write an entire buffer into this writer. Read more
source§

fn write_all_vectored(&mut self, bufs: &mut [IoSlice<'_>]) -> Result<(), Error>

🔬This is a nightly-only experimental API. (write_all_vectored)
Attempts to write multiple buffers into this writer. Read more
1.0.0 · source§

fn write_fmt(&mut self, fmt: Arguments<'_>) -> Result<(), Error>

Writes a formatted string into this writer, returning any error encountered. Read more
1.0.0 · source§

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

Creates a “by reference” adapter for this instance of Write. Read more
§

impl<T> WriteBuf for Cursor<T>
where T: WriteBuf,

Available on crate feature std only.
§

fn as_slice(&self) -> &[u8]

Returns the valid data part of this container. Should only cover initialized data.
§

fn capacity(&self) -> usize

Returns the full capacity of this container. May include uninitialized data.
§

fn as_mut_ptr(&mut self) -> *mut u8

Returns a pointer to the start of the data.
§

unsafe fn filled_until(&mut self, n: usize)

Indicates that the first n bytes of the container have been written. Read more
§

unsafe fn write_from<F>(&mut self, f: F) -> Result<usize, usize>

Call the given closure using the pointer and capacity from self. Read more
1.0.0 · source§

impl<T> Eq for Cursor<T>
where T: Eq,

1.0.0 · source§

impl<T> StructuralPartialEq for Cursor<T>

Auto Trait Implementations§

§

impl<T> Freeze for Cursor<T>
where T: Freeze,

§

impl<T> RefUnwindSafe for Cursor<T>
where T: RefUnwindSafe,

§

impl<T> Send for Cursor<T>
where T: Send,

§

impl<T> Sync for Cursor<T>
where T: Sync,

§

impl<T> Unpin for Cursor<T>
where T: Unpin,

§

impl<T> UnwindSafe for Cursor<T>
where T: UnwindSafe,

Blanket Implementations§

source§

impl<T> Any for T
where T: 'static + ?Sized,

source§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
§

impl<R> AsyncBufReadExt for R
where R: AsyncBufRead + ?Sized,

§

fn read_until<'a>( &'a mut self, byte: u8, buf: &'a mut Vec<u8> ) -> ReadUntil<'a, Self>
where Self: Unpin,

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

fn read_line<'a>(&'a mut self, buf: &'a mut String) -> ReadLine<'a, Self>
where Self: Unpin,

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

fn split(self, byte: u8) -> Split<Self>
where Self: Sized + Unpin,

Returns a stream of the contents of this reader split on the byte byte. Read more
§

fn fill_buf(&mut self) -> FillBuf<'_, Self>
where Self: Unpin,

Returns the contents of the internal buffer, filling it with more data from the inner reader if it is empty. Read more
§

fn consume(&mut self, amt: usize)
where Self: Unpin,

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
§

fn lines(self) -> Lines<Self>
where Self: Sized,

Returns a stream over the lines of this reader. This method is the async equivalent to BufRead::lines. Read more
§

impl<R> AsyncReadExt for R
where R: AsyncRead + ?Sized,

§

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

Creates a new AsyncRead instance that chains this stream with next. Read more
§

fn read<'a>(&'a mut self, buf: &'a mut [u8]) -> Read<'a, Self>
where Self: Unpin,

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

fn read_buf<'a, B>(&'a mut self, buf: &'a mut B) -> ReadBuf<'a, Self, B>
where Self: Unpin, B: BufMut + ?Sized,

Pulls some bytes from this source into the specified buffer, advancing the buffer’s internal cursor. Read more
§

fn read_exact<'a>(&'a mut self, buf: &'a mut [u8]) -> ReadExact<'a, Self>
where Self: Unpin,

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

fn read_u8(&mut self) -> ReadU8<&mut Self>
where Self: Unpin,

Reads an unsigned 8 bit integer from the underlying reader. Read more
§

fn read_i8(&mut self) -> ReadI8<&mut Self>
where Self: Unpin,

Reads a signed 8 bit integer from the underlying reader. Read more
§

fn read_u16(&mut self) -> ReadU16<&mut Self>
where Self: Unpin,

Reads an unsigned 16-bit integer in big-endian order from the underlying reader. Read more
§

fn read_i16(&mut self) -> ReadI16<&mut Self>
where Self: Unpin,

Reads a signed 16-bit integer in big-endian order from the underlying reader. Read more
§

fn read_u32(&mut self) -> ReadU32<&mut Self>
where Self: Unpin,

Reads an unsigned 32-bit integer in big-endian order from the underlying reader. Read more
§

fn read_i32(&mut self) -> ReadI32<&mut Self>
where Self: Unpin,

Reads a signed 32-bit integer in big-endian order from the underlying reader. Read more
§

fn read_u64(&mut self) -> ReadU64<&mut Self>
where Self: Unpin,

Reads an unsigned 64-bit integer in big-endian order from the underlying reader. Read more
§

fn read_i64(&mut self) -> ReadI64<&mut Self>
where Self: Unpin,

Reads an signed 64-bit integer in big-endian order from the underlying reader. Read more
§

fn read_u128(&mut self) -> ReadU128<&mut Self>
where Self: Unpin,

Reads an unsigned 128-bit integer in big-endian order from the underlying reader. Read more
§

fn read_i128(&mut self) -> ReadI128<&mut Self>
where Self: Unpin,

Reads an signed 128-bit integer in big-endian order from the underlying reader. Read more
§

fn read_f32(&mut self) -> ReadF32<&mut Self>
where Self: Unpin,

Reads an 32-bit floating point type in big-endian order from the underlying reader. Read more
§

fn read_f64(&mut self) -> ReadF64<&mut Self>
where Self: Unpin,

Reads an 64-bit floating point type in big-endian order from the underlying reader. Read more
§

fn read_u16_le(&mut self) -> ReadU16Le<&mut Self>
where Self: Unpin,

Reads an unsigned 16-bit integer in little-endian order from the underlying reader. Read more
§

fn read_i16_le(&mut self) -> ReadI16Le<&mut Self>
where Self: Unpin,

Reads a signed 16-bit integer in little-endian order from the underlying reader. Read more
§

fn read_u32_le(&mut self) -> ReadU32Le<&mut Self>
where Self: Unpin,

Reads an unsigned 32-bit integer in little-endian order from the underlying reader. Read more
§

fn read_i32_le(&mut self) -> ReadI32Le<&mut Self>
where Self: Unpin,

Reads a signed 32-bit integer in little-endian order from the underlying reader. Read more
§

fn read_u64_le(&mut self) -> ReadU64Le<&mut Self>
where Self: Unpin,

Reads an unsigned 64-bit integer in little-endian order from the underlying reader. Read more
§

fn read_i64_le(&mut self) -> ReadI64Le<&mut Self>
where Self: Unpin,

Reads an signed 64-bit integer in little-endian order from the underlying reader. Read more
§

fn read_u128_le(&mut self) -> ReadU128Le<&mut Self>
where Self: Unpin,

Reads an unsigned 128-bit integer in little-endian order from the underlying reader. Read more
§

fn read_i128_le(&mut self) -> ReadI128Le<&mut Self>
where Self: Unpin,

Reads an signed 128-bit integer in little-endian order from the underlying reader. Read more
§

fn read_f32_le(&mut self) -> ReadF32Le<&mut Self>
where Self: Unpin,

Reads an 32-bit floating point type in little-endian order from the underlying reader. Read more
§

fn read_f64_le(&mut self) -> ReadF64Le<&mut Self>
where Self: Unpin,

Reads an 64-bit floating point type in little-endian order from the underlying reader. Read more
§

fn read_to_end<'a>(&'a mut self, buf: &'a mut Vec<u8>) -> ReadToEnd<'a, Self>
where Self: Unpin,

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

fn read_to_string<'a>( &'a mut self, dst: &'a mut String ) -> ReadToString<'a, Self>
where Self: Unpin,

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

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

Creates an adaptor which reads at most limit bytes from it. Read more
§

impl<S> AsyncSeekExt for S
where S: AsyncSeek + ?Sized,

§

fn seek(&mut self, pos: SeekFrom) -> Seek<'_, Self>
where Self: Unpin,

Creates a future which will seek an IO object, and then yield the new position in the object and the object itself. Read more
§

fn rewind(&mut self) -> Seek<'_, Self>
where Self: Unpin,

Creates a future which will rewind to the beginning of the stream. Read more
§

fn stream_position(&mut self) -> Seek<'_, Self>
where Self: Unpin,

Creates a future which will return the current seek position from the start of the stream. Read more
§

impl<W> AsyncWriteExt for W
where W: AsyncWrite + ?Sized,

§

fn write<'a>(&'a mut self, src: &'a [u8]) -> Write<'a, Self>
where Self: Unpin,

Writes a buffer into this writer, returning how many bytes were written. Read more
§

fn write_vectored<'a, 'b>( &'a mut self, bufs: &'a [IoSlice<'b>] ) -> WriteVectored<'a, 'b, Self>
where Self: Unpin,

Like write, except that it writes from a slice of buffers. Read more
§

fn write_buf<'a, B>(&'a mut self, src: &'a mut B) -> WriteBuf<'a, Self, B>
where Self: Sized + Unpin, B: Buf,

Writes a buffer into this writer, advancing the buffer’s internal cursor. Read more
§

fn write_all_buf<'a, B>( &'a mut self, src: &'a mut B ) -> WriteAllBuf<'a, Self, B>
where Self: Sized + Unpin, B: Buf,

Attempts to write an entire buffer into this writer. Read more
§

fn write_all<'a>(&'a mut self, src: &'a [u8]) -> WriteAll<'a, Self>
where Self: Unpin,

Attempts to write an entire buffer into this writer. Read more
§

fn write_u8(&mut self, n: u8) -> WriteU8<&mut Self>
where Self: Unpin,

Writes an unsigned 8-bit integer to the underlying writer. Read more
§

fn write_i8(&mut self, n: i8) -> WriteI8<&mut Self>
where Self: Unpin,

Writes a signed 8-bit integer to the underlying writer. Read more
§

fn write_u16(&mut self, n: u16) -> WriteU16<&mut Self>
where Self: Unpin,

Writes an unsigned 16-bit integer in big-endian order to the underlying writer. Read more
§

fn write_i16(&mut self, n: i16) -> WriteI16<&mut Self>
where Self: Unpin,

Writes a signed 16-bit integer in big-endian order to the underlying writer. Read more
§

fn write_u32(&mut self, n: u32) -> WriteU32<&mut Self>
where Self: Unpin,

Writes an unsigned 32-bit integer in big-endian order to the underlying writer. Read more
§

fn write_i32(&mut self, n: i32) -> WriteI32<&mut Self>
where Self: Unpin,

Writes a signed 32-bit integer in big-endian order to the underlying writer. Read more
§

fn write_u64(&mut self, n: u64) -> WriteU64<&mut Self>
where Self: Unpin,

Writes an unsigned 64-bit integer in big-endian order to the underlying writer. Read more
§

fn write_i64(&mut self, n: i64) -> WriteI64<&mut Self>
where Self: Unpin,

Writes an signed 64-bit integer in big-endian order to the underlying writer. Read more
§

fn write_u128(&mut self, n: u128) -> WriteU128<&mut Self>
where Self: Unpin,

Writes an unsigned 128-bit integer in big-endian order to the underlying writer. Read more
§

fn write_i128(&mut self, n: i128) -> WriteI128<&mut Self>
where Self: Unpin,

Writes an signed 128-bit integer in big-endian order to the underlying writer. Read more
§

fn write_f32(&mut self, n: f32) -> WriteF32<&mut Self>
where Self: Unpin,

Writes an 32-bit floating point type in big-endian order to the underlying writer. Read more
§

fn write_f64(&mut self, n: f64) -> WriteF64<&mut Self>
where Self: Unpin,

Writes an 64-bit floating point type in big-endian order to the underlying writer. Read more
§

fn write_u16_le(&mut self, n: u16) -> WriteU16Le<&mut Self>
where Self: Unpin,

Writes an unsigned 16-bit integer in little-endian order to the underlying writer. Read more
§

fn write_i16_le(&mut self, n: i16) -> WriteI16Le<&mut Self>
where Self: Unpin,

Writes a signed 16-bit integer in little-endian order to the underlying writer. Read more
§

fn write_u32_le(&mut self, n: u32) -> WriteU32Le<&mut Self>
where Self: Unpin,

Writes an unsigned 32-bit integer in little-endian order to the underlying writer. Read more
§

fn write_i32_le(&mut self, n: i32) -> WriteI32Le<&mut Self>
where Self: Unpin,

Writes a signed 32-bit integer in little-endian order to the underlying writer. Read more
§

fn write_u64_le(&mut self, n: u64) -> WriteU64Le<&mut Self>
where Self: Unpin,

Writes an unsigned 64-bit integer in little-endian order to the underlying writer. Read more
§

fn write_i64_le(&mut self, n: i64) -> WriteI64Le<&mut Self>
where Self: Unpin,

Writes an signed 64-bit integer in little-endian order to the underlying writer. Read more
§

fn write_u128_le(&mut self, n: u128) -> WriteU128Le<&mut Self>
where Self: Unpin,

Writes an unsigned 128-bit integer in little-endian order to the underlying writer. Read more
§

fn write_i128_le(&mut self, n: i128) -> WriteI128Le<&mut Self>
where Self: Unpin,

Writes an signed 128-bit integer in little-endian order to the underlying writer. Read more
§

fn write_f32_le(&mut self, n: f32) -> WriteF32Le<&mut Self>
where Self: Unpin,

Writes an 32-bit floating point type in little-endian order to the underlying writer. Read more
§

fn write_f64_le(&mut self, n: f64) -> WriteF64Le<&mut Self>
where Self: Unpin,

Writes an 64-bit floating point type in little-endian order to the underlying writer. Read more
§

fn flush(&mut self) -> Flush<'_, Self>
where Self: Unpin,

Flushes this output stream, ensuring that all intermediately buffered contents reach their destination. Read more
§

fn shutdown(&mut self) -> Shutdown<'_, Self>
where Self: Unpin,

Shuts down the output stream, ensuring that the value can be dropped cleanly. Read more
source§

impl<T> Borrow<T> for T
where T: ?Sized,

source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
source§

impl<T> BorrowMut<T> for T
where T: ?Sized,

source§

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
§

impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

§

fn equivalent(&self, key: &K) -> bool

Checks if this value is equivalent to the given key. Read more
§

impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

§

fn equivalent(&self, key: &K) -> bool

Compare self to key and return true if they are equal.
source§

impl<T> From<T> for T

source§

fn from(t: T) -> T

Returns the argument unchanged.

§

impl<T> Instrument for T

§

fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided [Span], returning an Instrumented wrapper. Read more
§

fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
source§

impl<T, U> Into<U> for T
where U: From<T>,

source§

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

§

impl<T> Pointable for T

§

const ALIGN: usize = _

The alignment of pointer.
§

type Init = T

The type for initializers.
§

unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
§

unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
§

unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
§

unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
§

impl<R> ReadBytesExt for R
where R: Read + ?Sized,

§

fn read_u8(&mut self) -> Result<u8, Error>

Reads an unsigned 8 bit integer from the underlying reader. Read more
§

fn read_i8(&mut self) -> Result<i8, Error>

Reads a signed 8 bit integer from the underlying reader. Read more
§

fn read_u16<T>(&mut self) -> Result<u16, Error>
where T: ByteOrder,

Reads an unsigned 16 bit integer from the underlying reader. Read more
§

fn read_i16<T>(&mut self) -> Result<i16, Error>
where T: ByteOrder,

Reads a signed 16 bit integer from the underlying reader. Read more
§

fn read_u24<T>(&mut self) -> Result<u32, Error>
where T: ByteOrder,

Reads an unsigned 24 bit integer from the underlying reader. Read more
§

fn read_i24<T>(&mut self) -> Result<i32, Error>
where T: ByteOrder,

Reads a signed 24 bit integer from the underlying reader. Read more
§

fn read_u32<T>(&mut self) -> Result<u32, Error>
where T: ByteOrder,

Reads an unsigned 32 bit integer from the underlying reader. Read more
§

fn read_i32<T>(&mut self) -> Result<i32, Error>
where T: ByteOrder,

Reads a signed 32 bit integer from the underlying reader. Read more
§

fn read_u48<T>(&mut self) -> Result<u64, Error>
where T: ByteOrder,

Reads an unsigned 48 bit integer from the underlying reader. Read more
§

fn read_i48<T>(&mut self) -> Result<i64, Error>
where T: ByteOrder,

Reads a signed 48 bit integer from the underlying reader. Read more
§

fn read_u64<T>(&mut self) -> Result<u64, Error>
where T: ByteOrder,

Reads an unsigned 64 bit integer from the underlying reader. Read more
§

fn read_i64<T>(&mut self) -> Result<i64, Error>
where T: ByteOrder,

Reads a signed 64 bit integer from the underlying reader. Read more
§

fn read_u128<T>(&mut self) -> Result<u128, Error>
where T: ByteOrder,

Reads an unsigned 128 bit integer from the underlying reader. Read more
§

fn read_i128<T>(&mut self) -> Result<i128, Error>
where T: ByteOrder,

Reads a signed 128 bit integer from the underlying reader. Read more
§

fn read_uint<T>(&mut self, nbytes: usize) -> Result<u64, Error>
where T: ByteOrder,

Reads an unsigned n-bytes integer from the underlying reader. Read more
§

fn read_int<T>(&mut self, nbytes: usize) -> Result<i64, Error>
where T: ByteOrder,

Reads a signed n-bytes integer from the underlying reader. Read more
§

fn read_uint128<T>(&mut self, nbytes: usize) -> Result<u128, Error>
where T: ByteOrder,

Reads an unsigned n-bytes integer from the underlying reader.
§

fn read_int128<T>(&mut self, nbytes: usize) -> Result<i128, Error>
where T: ByteOrder,

Reads a signed n-bytes integer from the underlying reader.
§

fn read_f32<T>(&mut self) -> Result<f32, Error>
where T: ByteOrder,

Reads a IEEE754 single-precision (4 bytes) floating point number from the underlying reader. Read more
§

fn read_f64<T>(&mut self) -> Result<f64, Error>
where T: ByteOrder,

Reads a IEEE754 double-precision (8 bytes) floating point number from the underlying reader. Read more
§

fn read_u16_into<T>(&mut self, dst: &mut [u16]) -> Result<(), Error>
where T: ByteOrder,

Reads a sequence of unsigned 16 bit integers from the underlying reader. Read more
§

fn read_u32_into<T>(&mut self, dst: &mut [u32]) -> Result<(), Error>
where T: ByteOrder,

Reads a sequence of unsigned 32 bit integers from the underlying reader. Read more
§

fn read_u64_into<T>(&mut self, dst: &mut [u64]) -> Result<(), Error>
where T: ByteOrder,

Reads a sequence of unsigned 64 bit integers from the underlying reader. Read more
§

fn read_u128_into<T>(&mut self, dst: &mut [u128]) -> Result<(), Error>
where T: ByteOrder,

Reads a sequence of unsigned 128 bit integers from the underlying reader. Read more
§

fn read_i8_into(&mut self, dst: &mut [i8]) -> Result<(), Error>

Reads a sequence of signed 8 bit integers from the underlying reader. Read more
§

fn read_i16_into<T>(&mut self, dst: &mut [i16]) -> Result<(), Error>
where T: ByteOrder,

Reads a sequence of signed 16 bit integers from the underlying reader. Read more
§

fn read_i32_into<T>(&mut self, dst: &mut [i32]) -> Result<(), Error>
where T: ByteOrder,

Reads a sequence of signed 32 bit integers from the underlying reader. Read more
§

fn read_i64_into<T>(&mut self, dst: &mut [i64]) -> Result<(), Error>
where T: ByteOrder,

Reads a sequence of signed 64 bit integers from the underlying reader. Read more
§

fn read_i128_into<T>(&mut self, dst: &mut [i128]) -> Result<(), Error>
where T: ByteOrder,

Reads a sequence of signed 128 bit integers from the underlying reader. Read more
§

fn read_f32_into<T>(&mut self, dst: &mut [f32]) -> Result<(), Error>
where T: ByteOrder,

Reads a sequence of IEEE754 single-precision (4 bytes) floating point numbers from the underlying reader. Read more
§

fn read_f32_into_unchecked<T>(&mut self, dst: &mut [f32]) -> Result<(), Error>
where T: ByteOrder,

👎Deprecated since 1.2.0: please use read_f32_into instead
DEPRECATED. Read more
§

fn read_f64_into<T>(&mut self, dst: &mut [f64]) -> Result<(), Error>
where T: ByteOrder,

Reads a sequence of IEEE754 double-precision (8 bytes) floating point numbers from the underlying reader. Read more
§

fn read_f64_into_unchecked<T>(&mut self, dst: &mut [f64]) -> Result<(), Error>
where T: ByteOrder,

👎Deprecated since 1.2.0: please use read_f64_into instead
DEPRECATED. Read more
source§

impl<T> Same for T

§

type Output = T

Should always be Self
source§

impl<T> ToOwned for T
where T: Clone,

§

type Owned = T

The resulting type after obtaining ownership.
source§

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
source§

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
source§

impl<T, U> TryFrom<U> for T
where U: Into<T>,

§

type Error = Infallible

The type returned in the event of a conversion error.
source§

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
source§

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

§

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
§

impl<V, T> VZip<V> for T
where V: MultiLane<T>,

§

fn vzip(self) -> V

§

impl<T> WithSubscriber for T

§

fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a [WithDispatch] wrapper. Read more
§

fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a [WithDispatch] wrapper. Read more
§

impl<W> WriteBytesExt for W
where W: Write + ?Sized,

§

fn write_u8(&mut self, n: u8) -> Result<(), Error>

Writes an unsigned 8 bit integer to the underlying writer. Read more
§

fn write_i8(&mut self, n: i8) -> Result<(), Error>

Writes a signed 8 bit integer to the underlying writer. Read more
§

fn write_u16<T>(&mut self, n: u16) -> Result<(), Error>
where T: ByteOrder,

Writes an unsigned 16 bit integer to the underlying writer. Read more
§

fn write_i16<T>(&mut self, n: i16) -> Result<(), Error>
where T: ByteOrder,

Writes a signed 16 bit integer to the underlying writer. Read more
§

fn write_u24<T>(&mut self, n: u32) -> Result<(), Error>
where T: ByteOrder,

Writes an unsigned 24 bit integer to the underlying writer. Read more
§

fn write_i24<T>(&mut self, n: i32) -> Result<(), Error>
where T: ByteOrder,

Writes a signed 24 bit integer to the underlying writer. Read more
§

fn write_u32<T>(&mut self, n: u32) -> Result<(), Error>
where T: ByteOrder,

Writes an unsigned 32 bit integer to the underlying writer. Read more
§

fn write_i32<T>(&mut self, n: i32) -> Result<(), Error>
where T: ByteOrder,

Writes a signed 32 bit integer to the underlying writer. Read more
§

fn write_u48<T>(&mut self, n: u64) -> Result<(), Error>
where T: ByteOrder,

Writes an unsigned 48 bit integer to the underlying writer. Read more
§

fn write_i48<T>(&mut self, n: i64) -> Result<(), Error>
where T: ByteOrder,

Writes a signed 48 bit integer to the underlying writer. Read more
§

fn write_u64<T>(&mut self, n: u64) -> Result<(), Error>
where T: ByteOrder,

Writes an unsigned 64 bit integer to the underlying writer. Read more
§

fn write_i64<T>(&mut self, n: i64) -> Result<(), Error>
where T: ByteOrder,

Writes a signed 64 bit integer to the underlying writer. Read more
§

fn write_u128<T>(&mut self, n: u128) -> Result<(), Error>
where T: ByteOrder,

Writes an unsigned 128 bit integer to the underlying writer.
§

fn write_i128<T>(&mut self, n: i128) -> Result<(), Error>
where T: ByteOrder,

Writes a signed 128 bit integer to the underlying writer.
§

fn write_uint<T>(&mut self, n: u64, nbytes: usize) -> Result<(), Error>
where T: ByteOrder,

Writes an unsigned n-bytes integer to the underlying writer. Read more
§

fn write_int<T>(&mut self, n: i64, nbytes: usize) -> Result<(), Error>
where T: ByteOrder,

Writes a signed n-bytes integer to the underlying writer. Read more
§

fn write_uint128<T>(&mut self, n: u128, nbytes: usize) -> Result<(), Error>
where T: ByteOrder,

Writes an unsigned n-bytes integer to the underlying writer. Read more
§

fn write_int128<T>(&mut self, n: i128, nbytes: usize) -> Result<(), Error>
where T: ByteOrder,

Writes a signed n-bytes integer to the underlying writer. Read more
§

fn write_f32<T>(&mut self, n: f32) -> Result<(), Error>
where T: ByteOrder,

Writes a IEEE754 single-precision (4 bytes) floating point number to the underlying writer. Read more
§

fn write_f64<T>(&mut self, n: f64) -> Result<(), Error>
where T: ByteOrder,

Writes a IEEE754 double-precision (8 bytes) floating point number to the underlying writer. Read more