| .\" Copyright 1993 David Metcalfe (david@prism.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| .\" manual page may be incorrect or out-of-date.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 (faith@cs.unc.edu) |
| .\" Modified 2001-12-15, aeb |
| .TH SWAB 3 2001-12-15 "" "Linux Programmer's Manual" |
| .SH NAME |
| swab \- swap adjacent bytes |
| .SH SYNOPSIS |
| .nf |
| .B #include <unistd.h> |
| .sp |
| .BI "void swab(const void *" from ", void *" to ", ssize_t " n ); |
| .fi |
| .SH DESCRIPTION |
| The \fBswab\fP() function copies \fIn\fP bytes from the array pointed |
| to by \fIfrom\fP to the array pointed to by \fIto\fP, exchanging |
| adjacent even and odd bytes. This function is used to exchange data |
| between machines that have different low/high byte ordering. |
| .LP |
| This function does nothing when \fIn\fP is negative. |
| When \fIn\fP is positive and odd, it handles \fIn\fP-1 bytes |
| as above, and does something unspecified with the last byte. |
| (In other words, \fIn\fP should be even.) |
| .SH "RETURN VALUE" |
| The \fBswab\fP() function returns no value. |
| .SH "CONFORMING TO" |
| SVID 3, 4.3BSD, POSIX 1003.1-2001 |
| .SH "SEE ALSO" |
| .BR bstring (3) |