text: #include <string.h>
  #include <wchar.h>
  
  wchar_t *wmemmove(wchar_t *d, const wchar_t *s, size_t n)
  {
  	wchar_t *d0 = d;
  	if ((size_t)(d-s) < n)
  		while (n--) d[n] = s[n];
  	else
  		while (n--) *d++ = *s++;
  	return d0;
  }
  