RE: [boost] Unicode and filesystem

From: Adrian Michel (michel_at_[hidden])
Date: 2003-09-17 09:08:00

> -----Original Message-----
> From: Ehsan Akhgari [mailto:ehsan_at_[hidden]]
> Sent: Wednesday, September 17, 2003 1:41 AM
> To: 'Boost mailing list'
> Subject: RE: [boost] Unicode and filesystem
>
>
> > This constructor for the class std::fstream is documented in the help,
>
> > but it doesn't seem to be actually implemented. Any idea what's going
> > on? I am using VC++ 6.0.
>
> Try compiling the following:
>
> #include <fstream>
> #include <tchar.h>
>
> int main()
> {
>  std::basic_fstream< TCHAR > stream(
>   _tfopen( _T("myfile.txt"),  _T("r") ) );
> }
>

The std::basic_fstream does not have this constructor, and the code does not
compile. Again, I am using VC++ 6.

Here is std::basic_fstream from my <fstream> :

template<class _E, class _Tr = char_traits<_E> >
        class basic_fstream : public basic_iostream<_E, _Tr> {
public:
        basic_fstream()
                : basic_iostream<_E, _Tr>(&_Fb) {}
        explicit basic_fstream(const char *_S,
                ios_base::openmode _M = in | out)
                : basic_iostream<_E, _Tr>(&_Fb)
                {if (_Fb.open(_S, _M) == 0)
                        setstate(failbit); }
        virtual ~basic_fstream()
                {}
        basic_filebuf<_E, _Tr> *rdbuf() const
                {return ((basic_filebuf<_E, _Tr> *)&_Fb); }
        bool is_open() const
                {return (_Fb.is_open()); }
        void open(const char *_S, ios_base::openmode _M = in | out)
                {if (_Fb.open(_S, _M) == 0)
                         setstate(failbit); }
        void open(const char *_S, ios_base::open_mode _M)
                {open(_S, (openmode)_M); }
        void close()
                {if (_Fb.close() == 0)
                         setstate(failbit); }
private:
        basic_filebuf<_E, _Tr> _Fb;
        };