27   __dir_stream(__dir_stream&& __ds) noexcept : __stream_(__ds.__stream_),  in __dir_stream()
30     __ds.__stream_ = INVALID_HANDLE_VALUE;  in __dir_stream()
34       : __stream_(INVALID_HANDLE_VALUE), __root_(root) {  in __dir_stream()
39     __stream_ = ::FindFirstFileW((root / "*").c_str(), &__data_);  in __dir_stream()
40     if (__stream_ == INVALID_HANDLE_VALUE) {  in __dir_stream()
54     if (__stream_ == INVALID_HANDLE_VALUE)  in ~__dir_stream()
59   bool good() const noexcept { return __stream_ != INVALID_HANDLE_VALUE; }  in good()
62     while (::FindNextFileW(__stream_, &__data_)) {  in advance()
87     if (!::FindClose(__stream_))  in close()
89     __stream_ = INVALID_HANDLE_VALUE;  in close()
93   HANDLE __stream_{INVALID_HANDLE_VALUE};  member in __dir_stream
106   __dir_stream(__dir_stream&& other) noexcept : __stream_(other.__stream_),  in __dir_stream()
109     other.__stream_ = nullptr;  in __dir_stream()
113       : __stream_(nullptr), __root_(root) {  in __dir_stream()
114     if ((__stream_ = ::opendir(root.c_str())) == nullptr) {  in __dir_stream()
126     if (__stream_)  in ~__dir_stream()
130   bool good() const noexcept { return __stream_ != nullptr; }  in good()
134       auto str_type_pair = detail::posix_readdir(__stream_, ec);  in advance()
153     if (::closedir(__stream_) == -1)  in close()
155     __stream_ = nullptr;  in close()
159   DIR* __stream_{nullptr};  member in __dir_stream