libc-top-half/musl/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 #if defined(__wasm_bulk_memory__)
   7         return __builtin_wmemmove(d, s, n);
   8 #else
   9         wchar_t *d0 = d;
  10         if (d == s) return d;
  11         if ((uintptr_t)d-(uintptr_t)s < n * sizeof *d)
  12                 while (n--) d[n] = s[n];
  13         else
  14                 while (n--) *d++ = *s++;
  15         return d0;
  16 #endif // __wasm_bulk_memory__
  17 }