#ifndef __WIDESTRING_H__
#define __WIDESTRING_H__

#ifndef WCHAR
/* I don't know why require this header now. */
#include <wchar.h>
#define WCHAR wchar_t
#endif

extern int primStringToWide(char *str, unsigned int len, WCHAR *wstr, unsigned int wlen);
extern int wideToString(WCHAR *wstr, char **pstr);

extern unsigned int wideStringLen(char *str);

extern int lenWideString(WCHAR *str);

#endif