musl/src/string/wmemmove.c

#include <string.h>
#include <wchar.h>

wchar_t *wmemmove(wchar_t *d, const wchar_t *s, size_t n)
{
	if ((size_t)(d-s) < n)
		while (n--) d[n] = s[n];
	else
		while (n--) *d++ = *s++;
	return d;
}