is there anything wrong in this c++ code, such that it only outputs volume when given a file reference number whose path contains unicode characters, while for path containing only ascii, it can output correctly given the corresponding file reference number:
```
#include <iostream>
#include <windows.h>
#include <string>
#include <vector>

std::wstring GetPathFromId(const std::wstring& volumePath, ULONGLONG fileId) {
    HANDLE hVolume = CreateFileW(volumePath.c_str(), 
                                 GENERIC_READ, 
                                 FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE,
                                 NULL, 
                                 OPEN_EXISTING, 
                                 FILE_FLAG_BACKUP_SEMANTICS, 
                                 NULL);

    if (hVolume == INVALID_HANDLE_VALUE) {
        std::wcerr << L"Error opening volume. Error code: " << GetLastError() << std::endl;
        return L"";
    }

    FILE_ID_DESCRIPTOR fileIdDesc = {0};
    fileIdDesc.dwSize = sizeof(FILE_ID_DESCRIPTOR);
    fileIdDesc.Type = FileIdType;
    fileIdDesc.FileId.QuadPart = fileId;

    HANDLE hFile = OpenFileById(
        hVolume,
        &fileIdDesc,
        0,
        FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE,
        NULL,
        FILE_FLAG_BACKUP_SEMANTICS
    );

    CloseHandle(hVolume);

    if (hFile == INVALID_HANDLE_VALUE) {
        std::wcerr << L"Error opening file/directory. Error code: " << GetLastError() << std::endl;
        return L"";
    }

    DWORD dwSize = MAX_PATH;
    std::vector<wchar_t> filePath(dwSize);
    DWORD dwRet;

    while (true) {
        dwRet = GetFinalPathNameByHandleW(hFile, filePath.data(), dwSize, FILE_NAME_NORMALIZED);
        if (dwRet == 0) {
            std::wcerr << L"Error getting file/directory path. Error code: " << GetLastError() << std::endl;
            CloseHandle(hFile);
            return L"";
        }
        if (dwRet < dwSize)
            break;
        dwSize *= 2;
        filePath.resize(dwSize);
    }

    CloseHandle(hFile);

    std::wstring result(filePath.begin(), filePath.begin() + dwRet);

    // Remove "\\?\" prefix if present
    if (result.substr(0, 4) == L"\\\\?\\")
        result = result.substr(4);

    return result;
}

int wmain(int argc, wchar_t* argv[]) {
    if (argc != 3) {
        std::wcerr << L"Usage: " << argv[0] << L" <volume_path> <file_id>" << std::endl;
        std::wcerr << L"Example: " << argv[0] << L" C:\\ 1234567890" << std::endl;
        return 1;
    }

    std::wstring volumePath = argv[1];
    ULONGLONG fileId = std::stoull(argv[2]);

    std::wstring path = GetPathFromId(volumePath, fileId);

    if (!path.empty()) {
        DWORD attributes = GetFileAttributesW(path.c_str());
        if (attributes != INVALID_FILE_ATTRIBUTES) {
            if (attributes & FILE_ATTRIBUTE_DIRECTORY) {
                std::wcout << L"Directory Path: " << path << std::endl;
            } else {
                std::wcout << L"File Path: " << path << std::endl;
            }
        } else {
            std::wcerr << L"Error getting file/directory attributes. Error code: " << GetLastError() << std::endl;
        }
    } else {
        std::wcerr << L"Failed to retrieve path." << std::endl;
        return 1;
    }

    return 0;
}
```