pub unsafe extern "C" fn ion_reader_open(
p_hreader: *mut hREADER,
p_stream: *mut ION_STREAM,
p_options: *mut ION_READER_OPTIONS,
) -> iERRpub unsafe extern "C" fn ion_reader_open(
p_hreader: *mut hREADER,
p_stream: *mut ION_STREAM,
p_options: *mut ION_READER_OPTIONS,
) -> iERR