mingw-w64-crt/misc/wmemmove.c

/**
 * This file has no copyright assigned and is placed in the Public Domain.
 * This file is part of the w64 mingw-runtime package.
 * No warranty is given; refer to the file DISCLAIMER within this package.
 */
#include	<errno.h>
#include	<stdio.h>
#include	<stdlib.h>
#include	<wchar.h>

#if 0
wchar_t *
wmemmove(s1, s2, n)
	register wchar_t		*s1;
	register const wchar_t	*s2;
	register size_t			n;
	{
	wchar_t				*orig_s1 = s1;

	if ( s1 == NULL || s2 == NULL || n == 0 )
		return orig_s1;		/* robust */

	/* XXX -- The following test works only within a flat address space! */
	if ( s2 >= s1 )
		for ( ; n > 0; --n )
			*s1++ = *s2++;
	else	{
		s1 += n;
		s2 += n;

		for ( ; n > 0; --n )
			*--s1 = *--s2;
		}

	return orig_s1;
	}

#endif