swab(3c) [opensolaris man page]

swab(3C)						   Standard C Library Functions 						  swab(3C)

NAME

       swab - swap bytes

SYNOPSIS

       #include <stdlib.h>

       void swab(const char *src, char *dest, ssize_t nbytes);

   XPG4, SUS, SUSv2, SUSv3
       #include <unistd.h>

       void swab(const void *restrict src, void *restrict dest, ssize_t nbytes);

DESCRIPTION

       The  swab()  function  copies  nbytes bytes, which are pointed to by src, to the object pointed to by dest, exchanging adjacent bytes.  The
       nbytes argument should be even. If nbytes is odd swab() copies and exchanges nbytes-1 bytes and the disposition of the last byte is unspec-
       ified. If copying takes place between objects that overlap, the behavior is undefined. If nbytes is negative, swab() does nothing.

ERRORS

       No errors are defined.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Standard			   |
       +-----------------------------+-----------------------------+
       |MT-Level		     |MT-Safe			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       attributes(5), standards(5)

SunOS 5.11							    1 Nov 2003								  swab(3C)

SWAB(3P)						     POSIX Programmer's Manual							  SWAB(3P)

PROLOG

       This  manual page is part of the POSIX Programmer's Manual.  The Linux implementation of this interface may differ (consult the correspond-
       ing Linux manual page for details of Linux behavior), or the interface may not be implemented on Linux.

NAME

       swab - swap bytes

SYNOPSIS

       #include <unistd.h>

       void swab(const void *restrict src, void *restrict dest,
	      ssize_t nbytes);

DESCRIPTION

       The swab() function shall copy nbytes bytes, which are pointed to by src, to the object pointed to by dest, exchanging adjacent bytes.  The
       nbytes  argument  should  be  even.  If	nbytes	is odd, swab() copies and exchanges nbytes-1 bytes and the disposition of the last byte is
       unspecified. If copying takes place between objects that overlap, the behavior is undefined. If nbytes is negative, swab() does nothing.

RETURN VALUE

       None.

ERRORS

       No errors are defined.

       The following sections are informative.

EXAMPLES

       None.

APPLICATION USAGE

       None.

RATIONALE

       None.

FUTURE DIRECTIONS

       None.

SEE ALSO

       The Base Definitions volume of IEEE Std 1003.1-2001, <unistd.h>

COPYRIGHT

       Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2003 Edition, Standard for Information Technol-
       ogy -- Portable Operating System Interface (POSIX), The Open Group Base Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of
       Electrical and Electronics Engineers, Inc and The Open Group. In the event of any discrepancy between this version and  the  original  IEEE
       and  The  Open Group Standard, the original IEEE and The Open Group Standard is the referee document. The original Standard can be obtained
       online at http://www.opengroup.org/unix/online.html .

IEEE
/The Open Group						       2003								  SWAB(3P)