ultrix man page for swaplwbytes

swap_lw_bytes(3)					     Library Functions Manual						  swap_lw_bytes(3)

Name
       swap_lw_bytes, swap_word_bytes, swap_words - perform byte swapping operations

Syntax
       unsigned int swap_lw_bytes(buffer)
       unsigned int buffer;

       unsigned int swap_word_bytes(buffer)
       unsigned int buffer;

       unsigned int swap_words(buffer)
       unsigned int buffer;

Arguments
       buffer	 Specifies a 32-bit (4 bytes) quantity.

Description
       The  routine performs a long word byte swap.  The routine performs a short word byte swap.  The routine performs a word byte swap.  Because
       Digital devices support the little endian model of byte ordering, there is a need for these byte swapping routines.

       For the purposes of the following discussion, a long word is equal to 4 bytes; a short word is equal to 2 bytes; and 1 byte is equal  to  8
       bits.  The routine takes the 32-bit quantity specified by the buffer argument and swaps all four bytes.	The routine takes the 32-bit quan-
       tity specified by the buffer argument and swaps the individual bytes that make up each byte of the 32-bit quantity.  The routine takes  the
       32-bit quantity specified by the buffer argument and swaps the two words.

Return Values
       These routines return the result of the byte swapping.

																  swap_lw_bytes(3)