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Linux 2.6 - man page for swab (linux section 3)

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SWAB(3) 			    Linux Programmer's Manual				  SWAB(3)

NAME
       swab - swap adjacent bytes

SYNOPSIS
       #define _XOPEN_SOURCE	   /* See feature_test_macros(7) */
       #include <unistd.h>

       void swab(const void *from, void *to, ssize_t n);

DESCRIPTION
       The  swab() function copies n bytes from the array pointed to by from to the array pointed
       to by to, exchanging adjacent even and odd bytes.  This function is used to exchange  data
       between machines that have different low/high byte ordering.

       This function does nothing when n is negative.  When n is positive and odd, it handles n-1
       bytes as above, and does something unspecified with the last byte.   (In  other	words,	n
       should be even.)

RETURN VALUE
       The swab() function returns no value.

CONFORMING TO
       SVr4, 4.3BSD, POSIX.1-2001.

SEE ALSO
       bstring(3)

COLOPHON
       This  page  is  part of release 3.55 of the Linux man-pages project.  A description of the
       project,    and	  information	 about	  reporting    bugs,	can    be    found     at
       http://www.kernel.org/doc/man-pages/.

					    2001-12-15					  SWAB(3)
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