Function writeBytePreserve [src]

When draining the buffer, ensures that at least preserve bytes remain buffered.

Prototype

pub fn writeBytePreserve(w: *Writer, preserve: usize, byte: u8) Error!void

Parameters

w: *Writerpreserve: usizebyte: u8

Possible Errors

WriteFailed

See the Writer implementation for detailed diagnostics.

Source

  pub fn writeBytePreserve(w: *Writer, preserve: usize, byte: u8) Error!void {
    if (w.buffer.len - w.end != 0) {
        @branchHint(.likely);
        w.buffer[w.end] = byte;
        w.end += 1;
        return;
    }
    try w.vtable.rebase(w, preserve, 1);
    w.buffer[w.end] = byte;
    w.end += 1;
}  