Listing 4 xstrxfrm.h — internal header

#include "xstate.h"
       /* type definitions */
typedef struct {
    unsigned char _State;
    unsigned short _Wchar;
    } _Cosave;
       /* declarations */
size_t _Strxfrm(char *, const unsigned char **, size_t,
             _Cosave *);
/* End of File */