Struct MemOutfile 

pub struct MemOutfile { /* private fields */ }

In-memory output stream that grows as data is written — port of mem_outfile.

Implementations

impl MemOutfile

pub fn new() -> Self

Creates a new, empty memory output stream.

pub fn with_capacity(cap: usize) -> Self

Creates a memory output stream with pre-allocated capacity.

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

Returns a reference to all data written so far.

pub fn len(&self) -> usize

Returns the total number of bytes written.

pub fn is_empty(&self) -> bool

Returns true if no data has been written.

Trait Implementations

impl Default for MemOutfile

fn default() -> Self

Returns the “default value” for a type.

impl OutfileBase for MemOutfile

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

Writes data and returns the number of bytes written.

fn tell(&self) -> i64

Returns the current byte position in the stream.

fn seek(&mut self, offset: i64, whence: SeekFrom) -> Result<()>

Seeks to the given offset from whence.

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

Flushes any buffered data.