Linux 2.6 - man page for swab (linux section 3posix)
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SWAB(P) POSIX Programmer's Manual SWAB(P)
swab - swap bytes
void swab(const void *restrict src, void *restrict dest,
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.
No errors are defined.
The following sections are informative.
The Base Definitions volume of IEEE Std 1003.1-2001, <unistd.h>
Portions of this text are reprinted and reproduced in electronic form from IEEE Std
1003.1, 2003 Edition, Standard for Information Technology -- 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 orig-
inal Standard can be obtained online at http://www.opengroup.org/unix/online.html .
IEEE/The Open Group 2003 SWAB(P)
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