Trait Write 

pub trait Write {
    // Required methods
    fn write(&mut self, buf: &[u8]) -> Result<usize>;
    fn flush(&mut self) -> Result<()>;

    // Provided methods
    fn write_all(&mut self, buf: &[u8]) -> Result<()> { ... }
    fn write_fmt(&mut self, args: Arguments<'_>) -> Result<()> { ... }
    fn by_ref(&mut self) -> &mut Self
       where Self: Sized { ... }
}

A trait for objects which are byte-oriented sinks.

See std::io::Write for more details.

Required Methods

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

Write a buffer into this writer, returning how many bytes were written.

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

Flush this output stream, ensuring that all intermediately buffered contents reach their destination.

Provided Methods

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

Attempts to write an entire buffer into this writer.

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

Writes a formatted string into this writer, returning any error encountered.

fn by_ref(&mut self) -> &mut Self

where Self: Sized,

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

The returned adapter also implements Write and will simply borrow this current writer.

Implementations on Foreign Types

impl Write for &mut [u8]

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

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

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

impl Write for BorrowedCursor<'_>

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

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

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

impl<W: Write + ?Sized> Write for &mut W

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

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

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

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

Implementors

impl Write for &Empty

impl Write for &Sink

impl Write for Cursor<&mut [u8]>

impl Write for Empty

impl Write for Sink

impl<W> Write for WriteFn<W>

where W: FnMut(&[u8]) -> Result<usize>,

impl<W: ?Sized + Write> Write for BufWriter<W>

impl<W: ?Sized + Write> Write for LineWriter<W>

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