Function asdf_ndarray_read_all 

#[unsafe(no_mangle)]
pub unsafe extern "C" fn asdf_ndarray_read_all(
    ndarray: *mut asdf_ndarray_t,
    dst_t: ScalarTypeAbi,
    dst: *mut *mut c_void,
) -> NdarrayErr

Read the whole array, converting to dst_t.

With dst pointing at a null pointer, a buffer is allocated and the caller frees it with free. Passing ASDF_DATATYPE_SOURCE (which is UNKNOWN) keeps the array’s own type.

Safety

ndarray must be a valid asdf_ndarray_t; dst must be writable.