Function copy

src/operations.cpp:856–881

  }

  BOOST_FILESYSTEM_DECL
  void copy(const path& from, const path& to, system::error_code* ec)
  {
    file_status s(symlink_status(from, *ec));
    if (ec != 0 && *ec) return;

    if(is_symlink(s))
    {
      copy_symlink(from, to, *ec);
    }
    else if(is_directory(s))
    {
      copy_directory(from, to, *ec);
    }
    else if(is_regular_file(s))
    {
      copy_file(from, to, copy_option::fail_if_exists, *ec);
    }
    else
    {
      if (ec == 0)
        BOOST_FILESYSTEM_THROW(filesystem_error("boost::filesystem::copy",
          from, to, error_code(BOOST_ERROR_NOT_SUPPORTED, system_category())));
      ec->assign(BOOST_ERROR_NOT_SUPPORTED, system_category());
    }
  }

  BOOST_FILESYSTEM_DECL
  void copy_directory(const path& from, const path& to, system::error_code* ec)