void SetErrorMessage()

in native/win-helper/win-helper.cpp [14:36]

• 23 lines of code
• 2 McCabe index (conditional complexity)

void SetErrorMessage(const char* operationName, WCHAR*& errorMessagePtr) {
    LPWSTR msg;
    DWORD lastError = GetLastError();
    FormatMessageW(
            FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS,
            NULL,
            lastError,
            MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
            (LPWSTR)&msg,
            0,
            NULL);
    std::wstringstream s;
    s << operationName << " failed with error " << lastError << ": ";
    if (msg) {
        s << msg;
        LocalFree(msg);
    }
    else {
        s << "(no message available)";
    }
    std::wstring copy(s.str());
    errorMessagePtr = _wcsdup(copy.c_str());
}