1SWAB(3)                    Linux Programmer's Manual                   SWAB(3)
2
3
4

NAME

6       swab - swap adjacent bytes
7

SYNOPSIS

9       #define _XOPEN_SOURCE
10       #include <unistd.h>
11
12       void swab(const void *from, void *to, ssize_t n);
13

DESCRIPTION

15       The swab() function copies n bytes from the array pointed to by from to
16       the array pointed to by to, exchanging adjacent  even  and  odd  bytes.
17       This  function is used to exchange data between machines that have dif‐
18       ferent low/high byte ordering.
19
20       This function does nothing when n is negative.  When n is positive  and
21       odd, it handles n-1 bytes as above, and does something unspecified with
22       the last byte.  (In other words, n should be even.)
23

RETURN VALUE

25       The swab() function returns no value.
26

CONFORMING TO

28       SVr4, 4.3BSD, POSIX.1-2001.
29

SEE ALSO

31       bstring(3), feature_test_macros(7)
32

COLOPHON

34       This page is part of release 3.22 of the Linux  man-pages  project.   A
35       description  of  the project, and information about reporting bugs, can
36       be found at http://www.kernel.org/doc/man-pages/.
37
38
39
40                                  2001-12-15                           SWAB(3)