std::shuffle_order_engine

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< cpp‎ | numeric‎ | random
 
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std::shuffle_order_engine
Member functions
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Generation
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Characteristics
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Non-member functions
(哋它亢++11)(哋它亢++11)(until 哋它亢++20)
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Defined in header <random>
template<

    class Engine,
    std::size_t K

> class shuffle_order_engine;
 (since 哋它亢++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:

Defined in header <random>
Type Definition
knuth_b (哋它亢++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.

Member types

Member type Definition
result_type (哋它亢++11) Engine::result_type

Member functions

(哋它亢++11)
 constructs the engine adaptor
(public member function)
(哋它亢++11)
 sets the state of the underlying engine
(public member function)
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 returns the underlying engine
(public member function)
Generation
(哋它亢++11)
 advances the state of the underlying engine and returns the generated value
(public member function)
(哋它亢++11)
 advances the adaptor's state by a specified amount
(public member function)
Characteristics
[static] (哋它亢++11)
 gets the smallest possible value in the output range of the underlying engine.
(public static member function)
[static] (哋它亢++11)
 gets the largest possible value in the output range of the underlying engine.
(public static member function)

Non-member functions

(哋它亢++11)(哋它亢++11)(removed in 哋它亢++20)
 compares the internal states of the adaptors and underlying engines
(function)
(哋它亢++11)
 performs stream input and output on pseudo-random number engine adaptor
(function)

Member objects

constexpr size_t table_size
[static] (哋它亢++11)
 the size of the internal table, K
(public static member constant)

Example

This section is incomplete
Reason: no example
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