1/***********************************************************************
2*                                                                      *
3*               This software is part of the ast package               *
4*          Copyright (c) 1985-2011 AT&T Intellectual Property          *
5*                      and is licensed under the                       *
6*                  Common Public License, Version 1.0                  *
7*                    by AT&T Intellectual Property                     *
8*                                                                      *
9*                A copy of the License is available at                 *
10*            http://www.opensource.org/licenses/cpl1.0.txt             *
11*         (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9)         *
12*                                                                      *
13*              Information and Software Systems Research               *
14*                            AT&T Research                             *
15*                           Florham Park NJ                            *
16*                                                                      *
17*                 Glenn Fowler <gsf@research.att.com>                  *
18*                  David Korn <dgk@research.att.com>                   *
19*                   Phong Vo <kpv@research.att.com>                    *
20*                                                                      *
21***********************************************************************/
22#pragma prototyped
23/*
24 * swab implementation
25 */
26
27#if defined(__STDPP__directive) && defined(__STDPP__hide)
28__STDPP__directive pragma pp:hide swab
29#else
30#define swab		______swab
31#endif
32
33#include <ast.h>
34
35#if defined(__STDPP__directive) && defined(__STDPP__hide)
36__STDPP__directive pragma pp:nohide swab
37#else
38#undef	swab
39#endif
40
41#if _lib_swab
42
43NoN(swab)
44
45#else
46
47#include <swap.h>
48
49#if defined(__EXPORT__)
50#define extern	__EXPORT__
51#endif
52
53extern void
54swab(const void* src, void* dst, ssize_t n)
55{
56	if (n > 1)
57		swapmem(1, src, dst, n & ~1);
58}
59
60#endif
61