1 #include <wchar.h> 2 wcstok(wchar_t * restrict s,const wchar_t * restrict sep,wchar_t ** restrict p)3wchar_t *wcstok(wchar_t *restrict s, const wchar_t *restrict sep, wchar_t **restrict p) 4 { 5 if (!s && !(s = *p)) return NULL; 6 s += wcsspn(s, sep); 7 if (!*s) return *p = 0; 8 *p = s + wcscspn(s, sep); 9 if (**p) *(*p)++ = 0; 10 else *p = 0; 11 return s; 12 } 13