swab — swap adjacent bytes
#define _XOPEN_SOURCE /* See feature_test_macros(7) */ #include <unistd.h>
void
swab( |
const void *from, |
| void *to, | |
ssize_t n); |
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.)
This page is part of release 3.33 of the Linux man-pages project. A
description of the project, and information about reporting
bugs, can be found at http://man7.org/linux/man-pages/.
|
Copyright 1993 David Metcalfe (davidprism.demon.co.uk) Permission is granted to make and distribute verbatim copies of this manual provided the copyright notice and this permission notice are preserved on all copies. Permission is granted to copy and distribute modified versions of this manual under the conditions for verbatim copying, provided that the entire resulting derived work is distributed under the terms of a permission notice identical to this one. Since the Linux kernel and libraries are constantly changing, this manual page may be incorrect or out-of-date. The author(s) assume no responsibility for errors or omissions, or for damages resulting from the use of the information contained herein. The author(s) may not have taken the same level of care in the production of this manual, which is licensed free of charge, as they might when working professionally. Formatted or processed versions of this manual, if unaccompanied by the source, must acknowledge the copyright and authors of this work. References consulted: Linux libc source code Lewine's _POSIX Programmer's Guide_ (O'Reilly & Associates, 1991) 386BSD man pages Modified Sat Jul 24 17:52:15 1993 by Rik Faith (faithcs.unc.edu) Modified 2001-12-15, aeb |