Method append_vectored

src/fs/file_io_ext.rs:278–285

Is to `append` what `write_vectored` is to `write`.

(&self, bufs: &[IoSlice])

    /// Is to `append` what `write_vectored` is to `write`.
    fn append_vectored(&self, bufs: &[IoSlice]) -> io::Result<usize> {
        // By default, just append the first non-empty slice.
        let buf = bufs
            .iter()
            .find(|b| !b.is_empty())
            .map_or(&[][..], |b| &**b);
        self.append(buf)
    }

    /// Is to `append_all` what `write_all_vectored` is to `write_all`.
    fn append_all_vectored(&self, mut bufs: &mut [IoSlice]) -> io::Result<()> {