481 struct FileDescriptor {  struct
488   static FileDescriptor create(const path* p, error_code& ec, Args... args) {  in create()  argument
493       return FileDescriptor{p};  in create()
495     return FileDescriptor(p, fd);  in create()
499   static FileDescriptor create_with_status(const path* p, error_code& ec,  in create_with_status()  argument
501     FileDescriptor fd = create(p, ec, args...);  in create_with_status()
521   FileDescriptor(FileDescriptor&& other)  in FileDescriptor()  argument
528   ~FileDescriptor() { close(); }  in ~FileDescriptor()  argument
530   FileDescriptor(FileDescriptor const&) = delete;
531   FileDescriptor& operator=(FileDescriptor const&) = delete;
534   explicit FileDescriptor(const path* p, int fd = -1) : name(*p), fd(fd) {}  in FileDescriptor()  argument
602 bool posix_ftruncate(const FileDescriptor& fd, off_t to_size, error_code& ec) {  in posix_ftruncate()
611 bool posix_fchmod(const FileDescriptor& fd, const StatT& st, error_code& ec) {  in posix_fchmod()
624 file_status FileDescriptor::refresh_status(error_code& ec) {  in refresh_status()
820   bool copy_file_impl(FileDescriptor& read_fd, FileDescriptor& write_fd, error_code& ec) {  in copy_file_impl()
836   bool copy_file_impl(FileDescriptor& read_fd, FileDescriptor& write_fd, error_code& ec) {
857   bool copy_file_impl(FileDescriptor& read_fd, FileDescriptor& write_fd, error_code& ec) {
899   using detail::FileDescriptor;  in __copy_file()
903   FileDescriptor from_fd = FileDescriptor::create_with_status(  in __copy_file()
959   FileDescriptor to_fd = FileDescriptor::create_with_status(  in __copy_file()