-error_code file_size(const Twine &path, uint64_t &result) {
- SmallString<128> path_storage;
- SmallVector<wchar_t, 128> path_utf16;
-
- if (error_code ec = UTF8ToUTF16(path.toStringRef(path_storage),
- path_utf16))
- return ec;
-
- WIN32_FILE_ATTRIBUTE_DATA FileData;
- if (!::GetFileAttributesExW(path_utf16.begin(),
- ::GetFileExInfoStandard,
- &FileData))
- return windows_error(::GetLastError());
-
- result =
- (uint64_t(FileData.nFileSizeHigh) << (sizeof(FileData.nFileSizeLow) * 8))
- + FileData.nFileSizeLow;
-
- return error_code::success();
-}
-