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Showing content from https://en.cppreference.com/w/cpp/language/../numeric/random/shuffle_order_engine.html below:

std::shuffle_order_engine - cppreference.com

std::shuffle_order_engine template<

    class Engine,
    std::size_t K

> class shuffle_order_engine; (since C++11)

shuffle_order_engine is a random number engine adaptor that shuffles the random numbers generated by the base engine. It maintains a table of size K and delivers a randomly selected number from that table when requested, replacing it with a number generated by the base engine.

The following typedef defines the random number engine with one commonly used parameter set:

[edit] Template parameters Engine - the type of the wrapped engine K - the size of the internal table. Must be greater than 0. Type requirements -Engine must meet the requirements of RandomNumberEngine. [edit] Member types Member type Definition result_type (C++11) Engine::result_type [edit] Member functions constructs the engine adaptor
(public member function) [edit] sets the state of the underlying engine
(public member function) [edit] returns the underlying engine
(public member function) [edit] Generation advances the state of the underlying engine and returns the generated value
(public member function) [edit] advances the adaptor's state by a specified amount
(public member function) [edit] Characteristics gets the smallest possible value in the output range of the underlying engine.
(public static member function) [edit] gets the largest possible value in the output range of the underlying engine.
(public static member function) [edit] [edit] Non-member functions [edit] Member objects

constexpr size_t table_size

[static] (C++11)

the size of the internal table, K
(public static member constant) [edit] Example

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