| // filesystem windows_file_codecvt.hpp -----------------------------------------------// |
| |
| // Copyright Beman Dawes 2009 |
| |
| // Distributed under the Boost Software License, Version 1.0. |
| // See http://www.boost.org/LICENSE_1_0.txt |
| |
| // Library home page: http://www.boost.org/libs/filesystem |
| |
| #ifndef BOOST_FILESYSTEM3_WIN_FILE_CODECVT_HPP |
| #define BOOST_FILESYSTEM3_WIN_FILE_CODECVT_HPP |
| |
| #include <boost/filesystem/v3/config.hpp> |
| #include <locale> |
| |
| //------------------------------------------------------------------------------------// |
| // // |
| // class windows_file_codecvt // |
| // // |
| // Warning: partial implementation; even do_in and do_out only partially meet the // |
| // standard library specifications as the "to" buffer must hold the entire result. // |
| // // |
| //------------------------------------------------------------------------------------// |
| |
| class BOOST_FILESYSTEM_DECL windows_file_codecvt |
| : public std::codecvt< wchar_t, char, std::mbstate_t > |
| { |
| public: |
| explicit windows_file_codecvt() |
| : std::codecvt<wchar_t, char, std::mbstate_t>() {} |
| protected: |
| |
| virtual bool do_always_noconv() const throw() { return false; } |
| |
| // seems safest to assume variable number of characters since we don't |
| // actually know what codepage is active |
| virtual int do_encoding() const throw() { return 0; } |
| |
| virtual std::codecvt_base::result do_in(std::mbstate_t& state, |
| const char* from, const char* from_end, const char*& from_next, |
| wchar_t* to, wchar_t* to_end, wchar_t*& to_next) const; |
| |
| virtual std::codecvt_base::result do_out(std::mbstate_t & state, |
| const wchar_t* from, const wchar_t* from_end, const wchar_t*& from_next, |
| char* to, char* to_end, char*& to_next) const; |
| |
| virtual std::codecvt_base::result do_unshift(std::mbstate_t&, |
| char* /*from*/, char* /*to*/, char* & /*next*/) const { return ok; } |
| |
| virtual int do_length(std::mbstate_t&, |
| const char* /*from*/, const char* /*from_end*/, std::size_t /*max*/) const { return 0; } |
| |
| virtual int do_max_length() const throw () { return 0; } |
| }; |
| |
| #endif // BOOST_FILESYSTEM3_WIN_FILE_CODECVT_HPP |
