std::shuffle_order_engine
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Defined in header
<random> |
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| (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:
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Defined in header
<random> |
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| Type | Definition |
knuth_b(C++11) |
std::shuffle_order_engine<std::minstd_rand0, 256> |
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. |
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Member types
| Member type | Definition |
result_type |
Engine::result_type |
Member functions
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(C++11)
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constructs the engine adaptor (public member function) |
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(C++11)
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sets the state of the underlying engine (public member function) |
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(C++11)
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returns the underlying engine (public member function) |
Generation |
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(C++11)
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advances the state of the underlying engine and returns the generated value (public member function) |
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(C++11)
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advances the adaptor's state by a specified amount (public member function) |
Characteristics |
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[static] (C++11)
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gets the smallest possible value in the output range of the underlying engine. (public static member function) |
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[static] (C++11)
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gets the largest possible value in the output range of the underlying engine. (public static member function) |
Non-member functions
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(C++11)(C++11)(removed in C++20)
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compares the internal states of the adaptors and underlying engines (function) |
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(C++11)
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performs stream input and output on pseudo-random number engine adaptor (function) |
Member objects
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constexpr size_t table_size
[static]
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the size of the internal table, K(public static member constant) |