src/string/wmemmove.c

   1 #include <wchar.h>
   2 #include <stdint.h>
   3
   4 wchar_t *wmemmove(wchar_t *d, const wchar_t *s, size_t n)
   5 {
   6         wchar_t *d0 = d;
   7         if (d == s) return d;
   8         if ((uintptr_t)d-(uintptr_t)s < n * sizeof *d)
   9                 while (n--) d[n] = s[n];
  10         else
  11                 while (n--) *d++ = *s++;
  12         return d0;
  13 }