Function: assume_external_byte_order (<byte_order_flag>) Tells
numericalio the byte order for reading and writing binary data. Two values of <byte_order_flag> are recognized:
lsb which indicates least-significant byte first, also called little-endian byte order; and
msb which indicates most-significant byte first, also called big-endian byte order.
If not specified,
numericalio assumes the external byte order is most-significant byte first.
(%o1) true (%i2)