swab(3) Library Functions Manual swab(3)NAME
swab - Swaps bytes
Standard C Library (libc.so, libc.a)
const void *src,
The following definition of the swab() function does not conform to current standards and is supported only for System V compatibility:
const char *from,
Interfaces documented on this reference page conform to industry standards as follows:
swab(): XPG4, XPG4-UNIX
Refer to the standards(5) reference page for more information about industry standards and associated tags.
Points to the location of the string to copy. Points to the location to which the resulting string is copied. Specifies the number of
bytes to be copied. The nbytes parameter should have an even value. When the nbytes parameter is odd, the swab() function uses nbytes-1
instead. For the System V version of the swab() function, nbytes must also be non-negative. If nbytes is negative, nothing is done.
The swab() function copies the number of bytes specified by the nbytes parameter from the location pointed to by the src parameter to the
array pointed to by the dest parameter, exchanging adjacent bytes. If copying takes place between objects that overlap, the behavior is
Standards: standards(5) delim off
Check Out this Related Man Page
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.
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 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)
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