1 #include <wchar.h>
2 
wcsncpy(wchar_t * restrict d,const wchar_t * restrict s,size_t n)3 wchar_t* wcsncpy(wchar_t* restrict d, const wchar_t* restrict s, size_t n) {
4     wchar_t* a = d;
5     while (n && *s)
6         n--, *d++ = *s++;
7     wmemset(d, 0, n);
8     return a;
9 }
10