INNER CODE UNIT · Rust

take

Barre/ZeroFS · zerofs/nbd-proto/src/lib.rs:219

    fn take<const N: usize>(&mut self) -> Result<[u8; N], CodecError> {
        let (bytes, rest) = self.0.split_first_chunk().ok_or(CodecError::Truncated)?;
        self.0 = rest;
        Ok(*bytes)
    }
}

struct Writer<'a> {
    output: &'a mut [u8],
    offset: usize,
}

impl Writer<'_> {
    fn put(&mut self, bytes: &[u8]) -> Result<(), CodecError> {
        let end = self
            .offset
            .checked_add(bytes.len())
            .ok_or(CodecError::BufferTooSmall)?;

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