template <typename T> class property {
            T value;
        public:
            T & operator = (const T &i) {
                return value = i;
            }
 
            operator T const & () const {
                return value;
            }
    };
 
 
    struct Bar {
        // Using the property<>-template.
        property <bool> alpha;
        property <unsigned int> bravo;
    };
 
    int main () {
        Bar bar;
        bar.alpha = true;
 
        return bar.bravo;
    }
 

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