C++泛型容器类

template <class T>
class wrapped_vector {
private:
    std::vector<T> elements;
public:
    wrapped_vector(size_t size = 20) {
        elements.resize(size);
    }
    
    typename std::vector<T>::reference operator[](int i) {
        return elements[i];
    }
    
    typename std::vector<T>::const_reference operator[](int i) const {
        return elements[i];
    }
    
    void addValue(T* value) {
        elements.push_back(*value);
    }
    
    void setValue(int i, T value) {
        elements[i] = value;
    }
    
    size_t size() {
        return elements.size();
    }
};

 

 

参考链接：

With C++, how do I wrap a vector and overload [] for all types?