Function pack_array

pub fn pack_array<Out, T>(
    val: &[T],
    sz: usize,
    out: &mut Out,
    defl: Option<&T>,
) -> Result<usize>
where
    Out: Write,
    T: Pack<Out>,

Pack a fixed-size array.

As the size is fixed, it doesn’t need to be encoded. sz is in units of array elements. If the val is too large, it is truncated; it is too small, then the array is padded out with default values (if provided). If the array is too small and there’s no pad/default value, then it fails with Error::InvalidLen.