random_device Class

發行項
02/28/2013

會從外部裝置的隨機序列。

class random_device {
public:
    typedef unsigned int result_type;
    explicit random_device(const std::string& token = /* implementation defined */);
    result_type min() const;
    result_type max() const;
    double entropy() const;
    result_type operator()();
private:
    random_device(const random_device&) = delete;
    void operator=(const random_device&) = delete;
    };