std::discard_block_engine
From cppreference.com
Defined in header
<random>
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template<
class Engine, |
(since C++11) | |
discard_block_engine
is a pseudo-random number generator adapter that discards a certain amount of data produced by the base engine. From each block of size P
generated by the base engine, the adaptor keeps only R
numbers, discarding the rest.
Contents |
[edit] Template parameters
Engine | - | the type of the wrapped engine |
P | - | the size of a block. Must be greater than 0. |
R | - | the number of used numbers per block. Must be greater than 0 and not greater than P
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Type requirements | ||
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Engine must meet the requirements of RandomNumberEngine .
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[edit] Member types
Member type | Definition |
result_type
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Engine::result_type
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[edit] Member functions
constructs the engine adaptor (public member function) |
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sets the state of the underlying engine (public member function) |
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returns the underlying engine (public member function) |
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Generation |
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advances the state of the underlying engine and returns the generated value (public member function) |
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advances the adaptor's state by a specified amount (public member function) |
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Characteristics |
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[static]
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gets the smallest possible value in the output range of the underlying engine. (public static member function) |
[static]
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gets the largest possible value in the output range of the underlying engine. (public static member function) |
[edit] Non-member functions
compares the internal states of the adaptors and underlying engines (function) |
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performs stream input and output on pseudo-random number engine adaptor (function) |
[edit] Member objects
constexpr size_t block_size
[static]
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the size of the block, P (public static member constant) |
constexpr size_t used_size
[static]
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the number of used numbers per block, R (public static member constant) |