1 #include <wchar.h> 2 wcsncat(wchar_t * restrict d,const wchar_t * restrict s,size_t n)3 wchar_t *wcsncat(wchar_t *restrict d, const wchar_t *restrict s, size_t n) 4 { 5 wchar_t *a = d; 6 d += wcslen(d); 7 while (n && *s) n--, *d++ = *s++; 8 *d++ = 0; 9 return a; 10 } 11