Struct WriteTo 

pub struct WriteTo<'a> { /* private fields */ }

A struct representing a writer that appends formatted data to a byte buffer.

Implementations

impl<'a> WriteTo<'a>

pub fn new(buf: &'a mut [u8]) -> Self

Constructs a new WriteTo instance wrapping the provided byte buffer.

pub fn as_str(self) -> Option<&'a str>

Converts the written portion of the buffer into a string slice, if possible.

pub fn len(&self) -> usize

Get the number of bytes written to buffer.

pub fn is_empty(&self) -> bool

Returns true if self has a length of zero bytes

Trait Implementations

impl<'a> Write for WriteTo<'a>

fn write_str(&mut self, s: &str) -> Result

Writes a string slice into the buffer, updating the length accordingly.

fn write_char(&mut self, c: char) -> Result<(), Error>

Writes a char into this writer, returning whether the write succeeded.

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

Glue for usage of the write! macro with implementors of this trait.