- _CRTIMP wchar_t *__cdecl _i64tow(__int64 _Val,wchar_t *_DstBuf,int _Radix);
- _CRTIMP wchar_t *__cdecl _ui64tow(unsigned __int64 _Val,wchar_t *_DstBuf,int _Radix);
- _CRTIMP __int64 __cdecl _wtoi64(const wchar_t *_Str);
- _CRTIMP __int64 __cdecl _wtoi64_l(const wchar_t *_Str,_locale_t _Locale);
- _CRTIMP __int64 __cdecl _wcstoi64(const wchar_t *_Str,wchar_t **_EndPtr,int _Radix);
- _CRTIMP __int64 __cdecl _wcstoi64_l(const wchar_t *_Str,wchar_t **_EndPtr,int _Radix,_locale_t _Locale);
- _CRTIMP unsigned __int64 __cdecl _wcstoui64(const wchar_t *_Str,wchar_t **_EndPtr,int _Radix);
- _CRTIMP unsigned __int64 __cdecl _wcstoui64_l(const wchar_t *_Str ,wchar_t **_EndPtr,int _Radix,_locale_t _Locale);
+ __MINGW_EXTENSION _CRTIMP wchar_t *__cdecl _i64tow(__int64 _Val,wchar_t *_DstBuf,int _Radix);
+ __MINGW_EXTENSION _CRTIMP wchar_t *__cdecl _ui64tow(unsigned __int64 _Val,wchar_t *_DstBuf,int _Radix);
+ __MINGW_EXTENSION _CRTIMP __int64 __cdecl _wtoi64(const wchar_t *_Str);
+ __MINGW_EXTENSION _CRTIMP __int64 __cdecl _wtoi64_l(const wchar_t *_Str,_locale_t _Locale);
+ __MINGW_EXTENSION _CRTIMP __int64 __cdecl _wcstoi64(const wchar_t *_Str,wchar_t **_EndPtr,int _Radix);
+ __MINGW_EXTENSION _CRTIMP __int64 __cdecl _wcstoi64_l(const wchar_t *_Str,wchar_t **_EndPtr,int _Radix,_locale_t _Locale);
+ __MINGW_EXTENSION _CRTIMP unsigned __int64 __cdecl _wcstoui64(const wchar_t *_Str,wchar_t **_EndPtr,int _Radix);
+ __MINGW_EXTENSION _CRTIMP unsigned __int64 __cdecl _wcstoui64_l(const wchar_t *_Str ,wchar_t **_EndPtr,int _Radix,_locale_t _Locale);