std::discard_block_engine - cppreference.com
From cppreference.com
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(since C++11) | |
discard_block_engine is a pseudo-random number engine adaptor 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.
Template parameters
| Engine | - | the type of the wrapped engine. |
| P | - | the size of a block. Expected that P > 0. |
| R | - | the number of used numbers per block. Expected that 0 < R ≤ P. |
| Type requirements | ||
-Engine must meet the requirements of RandomNumberEngine.
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Member types
| Member type | Definition |
result_type (C++11)
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Engine::result_type
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Member functions
(C++11) |
constructs the engine adaptor (public member function) [edit] |
(C++11) |
sets the state of the underlying engine (public member function) [edit] |
(C++11) |
returns the underlying engine (public member function) [edit] |
Generation | |
(C++11) |
advances the state of the underlying engine and returns the generated value (public member function) [edit] |
(C++11) |
advances the adaptor's state by a specified amount (public member function) [edit] |
Characteristics | |
[static] (C++11) |
gets the smallest possible value in the output range of the underlying engine. (public static member function) [edit] |
[static] (C++11) |
gets the largest possible value in the output range of the underlying engine. (public static member function) [edit] |
Non-member functions
Member constants
constexpr size_t block_size [static] (C++11) |
the size of the block, P (public static member constant) |
constexpr size_t used_block [static] (C++11) |
the number of used numbers per block, R (public static member constant) |