operations.hpp

support vector clustering for vc++

    }

    BOOST_FS_FUNC(space_info) space( const Path & ph )
    {
      detail::space_pair result
        = detail::space_api( ph.external_file_string() );
      if ( result.first != 0 )
        boost::throw_exception( basic_filesystem_error<Path>(
          "boost::filesystem::space", ph, result.first ) );
      return result.second;
    }

    BOOST_FS_FUNC(std::time_t) last_write_time( const Path & ph )
    {
      detail::time_pair result
        = detail::last_write_time_api( ph.external_file_string() );
      if ( result.first != 0 )
        boost::throw_exception( basic_filesystem_error<Path>(
          "boost::filesystem::last_write_time", ph, result.first ) );
      return result.second;
    }


//  operations  --------------------------------------------------------------//

    BOOST_FS_FUNC(bool) create_directory( const Path & dir_ph )
    {
      detail::query_pair result(
        detail::create_directory_api( dir_ph.external_directory_string() ) );
      if ( result.first != 0 )
        boost::throw_exception( basic_filesystem_error<Path>(
          "boost::filesystem::create_directory",
          dir_ph, result.first ) );
      return result.second;
    }

#if !defined(BOOST_WINDOWS_API) || defined(BOOST_FS_HARD_LINK)
    BOOST_FS_FUNC(void)
    create_hard_link( const Path & to_ph, const Path & from_ph )
    {
      system_error_type result( 
        detail::create_hard_link_api(
          to_ph.external_file_string(),
          from_ph.external_file_string() ) );
      if ( result != 0 )
        boost::throw_exception( basic_filesystem_error<Path>(
          "boost::filesystem::create_hard_link",
          to_ph, from_ph, result ) );
    }

    BOOST_FS_FUNC(system_error_type)
    create_hard_link( const Path & to_ph, const Path & from_ph,
      system_error_type & ec )
    {
      ec = detail::create_hard_link_api(
            to_ph.external_file_string(),
            from_ph.external_file_string() );
      return ec;
    }
#endif

    BOOST_FS_FUNC(void)
    create_symlink( const Path & to_ph, const Path & from_ph )
    {
      system_error_type result( 
        detail::create_symlink_api(
          to_ph.external_file_string(),
          from_ph.external_file_string() ) );
      if ( result )
        boost::throw_exception( basic_filesystem_error<Path>(
          "boost::filesystem::create_symlink",
          to_ph, from_ph, result ) );
    }

    BOOST_FS_FUNC(system_error_type)
    create_symlink( const Path & to_ph, const Path & from_ph,
      system_error_type & ec )
    {
      ec = detail::create_symlink_api(
             to_ph.external_file_string(),
             from_ph.external_file_string() );
      return ec;
    }

    BOOST_FS_FUNC(bool) remove( const Path & ph )
    {
      if ( exists( ph )
        || is_symlink( ph ) ) // handle dangling symbolic links
        // note that the POSIX behavior for symbolic links is what we want;
        // the link rather than what it points to is deleted. Windows behavior
        // doesn't matter; is_symlink() is always false on Windows.
      {
        system_error_type result = detail::remove_api( ph.external_file_string() );
        if ( result != 0 )
          boost::throw_exception( basic_filesystem_error<Path>(
            "boost::filesystem::remove",
            ph, result ) );
        return true;
      }
      return false;
    }

    BOOST_FS_FUNC(unsigned long) remove_all( const Path & ph )
    {
      return exists( ph )|| is_symlink( ph )
        ? detail::remove_all_aux( ph ) : 0;
    }

    BOOST_FS_FUNC(void) rename( const Path & from_path, const Path & to_path )
    {
      system_error_type result = detail::rename_api(
        from_path.external_directory_string(),
        to_path.external_directory_string() );
      if ( result != 0 )
        boost::throw_exception( basic_filesystem_error<Path>(
          "boost::filesystem::rename",
          from_path, to_path, result ) );
    }

    BOOST_FS_FUNC(void) copy_file( const Path & from_path, const Path & to_path )
    {
      system_error_type result = detail::copy_file_api(
        from_path.external_directory_string(),
        to_path.external_directory_string() );
      if ( result != 0 )
        boost::throw_exception( basic_filesystem_error<Path>(
          "boost::filesystem::copy_file",
          from_path, to_path, result ) );
    }

    template< class Path >
    Path current_path()
    {
      typename Path::external_string_type ph;
      boost::filesystem::system_error_type result;
      if ( (result = detail::get_current_path_api( ph )) != 0 )
          boost::throw_exception( basic_filesystem_error<Path>(
            "boost::filesystem::current_path", result ) );
      return Path( Path::traits_type::to_internal( ph ) );
    }

    template< class Path >
    const Path & initial_path()
    {
      static Path init_path;
      if ( init_path.empty() ) init_path = current_path<Path>();
      return init_path;
    }

# ifndef BOOST_FILESYSTEM_NO_DEPRECATED
    // legacy support
    inline path current_path()  // overload supports pre-i18n apps
      { return current_path<boost::filesystem::path>(); }
    inline const path & initial_path() // overload supports pre-i18n apps
      { return initial_path<boost::filesystem::path>(); }
# endif

    BOOST_FS_FUNC(Path) system_complete( const Path & ph )
    {
# ifdef BOOST_WINDOWS_API
      if ( ph.empty() ) return ph;
      BOOST_FS_TYPENAME Path::external_string_type sys_ph;
      boost::filesystem::system_error_type result;
      if ( (result = detail::get_full_path_name_api( ph.external_file_string(),
              sys_ph )) != 0 )
          boost::throw_exception( basic_filesystem_error<Path>(
            "boost::filesystem::system_complete", ph, result ) );
      return Path( Path::traits_type::to_internal( sys_ph ) );
# else
      return (ph.empty() || ph.is_complete())
        ? ph : current_path<Path>() / ph;
# endif
    }

    BOOST_FS_FUNC(Path)
    complete( const Path & ph,
      const Path & base/* = initial_path<Path>() */)
    {
      BOOST_ASSERT( base.is_complete()
        && (ph.is_complete() || !ph.has_root_name())
        && "boost::filesystem::complete() precondition not met" );
#   ifdef BOOST_WINDOWS_PATH
      if (ph.empty() || ph.is_complete()) return ph;
      if ( !ph.has_root_name() )
        return ph.has_root_directory()
          ? Path( base.root_name() ) / ph
          : base / ph;
      return base / ph;
#   else
      return (ph.empty() || ph.is_complete()) ? ph : base / ph;
#   endif
    }

    // VC++ 7.1 had trouble with default arguments, so separate one argument
    // signatures are provided as workarounds; the effect is the same.
    BOOST_FS_FUNC(Path) complete( const Path & ph )
      { return complete( ph, initial_path<Path>() ); }

    BOOST_FS_FUNC(void)
    last_write_time( const Path & ph, const std::time_t new_time )
    {
      boost::filesystem::system_error_type result;
      if ( (result = detail::last_write_time_api( ph.external_file_string(),
          new_time )) != 0 )
        boost::throw_exception( basic_filesystem_error<Path>(
          "boost::filesystem::last_write_time", ph, result ) );
    }

# ifndef BOOST_FILESYSTEM_NARROW_ONLY

    // "do-the-right-thing" overloads  ---------------------------------------//

    inline file_status status( const path & ph )
      { return status<path>( ph ); }
    inline file_status status( const wpath & ph )
      { return status<wpath>( ph ); }

    inline file_status status( const path & ph, system_error_type & ec )
      { return status<path>( ph, ec ); }
    inline file_status status( const wpath & ph, system_error_type & ec )
      { return status<wpath>( ph, ec ); }

    inline file_status symlink_status( const path & ph )
      { return symlink_status<path>( ph ); }
    inline file_status symlink_status( const wpath & ph )
      { return symlink_status<wpath>( ph ); }

    inline file_status symlink_status( const path & ph, system_error_type & ec )
      { return symlink_status<path>( ph, ec ); }
    inline file_status symlink_status( const wpath & ph, system_error_type & ec )
      { return symlink_status<wpath>( ph, ec ); }

    inline bool exists( const path & ph ) { return exists<path>( ph ); }
    inline bool exists( const wpath & ph ) { return exists<wpath>( ph ); }

    inline bool is_directory( const path & ph )
      { return is_directory<path>( ph ); }
    inline bool is_directory( const wpath & ph )
      { return is_directory<wpath>( ph ); }
 
    inline bool is_regular( const path & ph )
      { return is_regular<path>( ph ); }
    inline bool is_regular( const wpath & ph )
      { return is_regular<wpath>( ph ); }

    inline bool is_other( const path & ph )
      { return is_other<path>( ph ); }
    inline bool is_other( const wpath & ph )
      { return is_other<wpath>( ph ); }

    inline bool is_symlink( const path & ph )
      { return is_symlink<path>( ph ); }
    inline bool is_symlink( const wpath & ph )
      { return is_symlink<wpath>( ph ); }

    inline bool is_empty( const path & ph )
      { return is_empty<path>( ph ); }
    inline bool is_empty( const wpath & ph )
      { return is_empty<wpath>( ph ); }

    inline bool equivalent( const path & ph1, const path & ph2 )
      { return equivalent<path>( ph1, ph2 ); }
    inline bool equivalent( const wpath & ph1, const wpath & ph2 )
      { return equivalent<wpath>( ph1, ph2 ); }

    inline boost::uintmax_t file_size( const path & ph )
      { return file_size<path>( ph ); }
    inline boost::uintmax_t file_size( const wpath & ph )
      { return file_size<wpath>( ph ); }

    inline space_info space( const path & ph )
      { return space<path>( ph ); }
    inline space_info space( const wpath & ph )
      { return space<wpath>( ph ); }

    inline std::time_t last_write_time( const path & ph )
      { return last_write_time<path>( ph ); }
    inline std::time_t last_write_time( const wpath & ph )
      { return last_write_time<wpath>( ph ); }

    inline bool create_directory( const path & dir_ph )
      { return create_directory<path>( dir_ph ); }
    inline bool create_directory( const wpath & dir_ph )
      { return create_directory<wpath>( dir_ph ); }

#if !defined(BOOST_WINDOWS_API) || defined(BOOST_FS_HARD_LINK)
    inline void create_hard_link( const path & to_ph,
      const path & from_ph )
      { return create_hard_link<path>( to_ph, from_ph ); }
    inline void create_hard_link( const wpath & to_ph,
      const wpath & from_ph )
      { return create_hard_link<wpath>( to_ph, from_ph ); }

    inline system_error_type create_hard_link( const path & to_ph,
      const path & from_ph, system_error_type & ec )
      { return create_hard_link<path>( to_ph, from_ph, ec ); }
    inline system_error_type create_hard_link( const wpath & to_ph,
      const wpath & from_ph, system_error_type & ec )
      { return create_hard_link<wpath>( to_ph, from_ph, ec ); }
#endif
    
    inline void create_symlink( const path & to_ph,
      const path & from_ph )
      { return create_symlink<path>( to_ph, from_ph ); }
    inline void create_symlink( const wpath & to_ph,
      const wpath & from_ph )
      { return create_symlink<wpath>( to_ph, from_ph ); }

    inline system_error_type create_symlink( const path & to_ph,
      const path & from_ph, system_error_type & ec )
      { return create_symlink<path>( to_ph, from_ph, ec ); }
    inline system_error_type create_symlink( const wpath & to_ph,
      const wpath & from_ph, system_error_type & ec )
      { return create_symlink<wpath>( to_ph, from_ph, ec ); }

    inline bool remove( const path & ph )
      { return remove<path>( ph ); }
    inline bool remove( const wpath & ph )
      { return remove<wpath>( ph ); }

    inline unsigned long remove_all( const path & ph )
      { return remove_all<path>( ph ); }
    inline unsigned long remove_all( const wpath & ph )
      { return remove_all<wpath>( ph ); }

    inline void rename( const path & from_path, const path & to_path )
      { return rename<path>( from_path, to_path ); }
    inline void rename( const wpath & from_path, const wpath & to_path )
      { return rename<wpath>( from_path, to_path ); }

    inline void copy_file( const path & from_path, const path & to_path )
      { return copy_file<path>( from_path, to_path ); }
    inline void copy_file( const wpath & from_path, const wpath & to_path )
      { return copy_file<wpath>( from_path, to_path ); }

    inline path system_complete( const path & ph )
      { return system_complete<path>( ph ); }
    inline wpath system_complete( const wpath & ph )
      { return system_complete<wpath>( ph ); }

    inline path complete( const path & ph,
      const path & base/* = initial_path<path>()*/ )
      { return complete<path>( ph, base ); }
    inline wpath complete( const wpath & ph,
      const wpath & base/* = initial_path<wpath>()*/ )
      { return complete<wpath>( ph, base ); }

    inline path complete( const path & ph )
      { return complete<path>( ph, initial_path<path>() ); }
    inline wpath complete( const wpath & ph )
      { return complete<wpath>( ph, initial_path<wpath>() ); }

    inline void last_write_time( const path & ph, const std::time_t new_time )
      { last_write_time<path>( ph, new_time ); }
    inline void last_write_time( const wpath & ph, const std::time_t new_time )
      { last_write_time<wpath>( ph, new_time ); }

# endif // BOOST_FILESYSTEM_NARROW_ONLY

    namespace detail
    {
      template<class Path>
      unsigned long remove_all_aux( const Path & ph )
      {
        static const boost::filesystem::basic_directory_iterator<Path> end_itr;
        unsigned long count = 1;
        if ( !boost::filesystem::is_symlink( ph ) // don't recurse symbolic links