C(WEOF)
{void *x=NULL;}
{wint_t(*p)(int) = btowc;}
-{wint_t(FILE*) = fgetwc;}
+{wint_t(*p)(FILE*) = fgetwc;}
{wchar_t*(*p)(wchar_t*restrict,int,FILE*restrict) = fgetws;}
{wint_t(*p)(wchar_t,FILE*) = fputwc;}
{int(*p)(const wchar_t*restrict,FILE*restrict) = fputws;}