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Difference between revisions of "cpp/numeric/random/independent bits engine"

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< cpp‎ | numeric‎ | random
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{{par|Engine|the type of the wrapped engine}}
 
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{{par|W|the number of bits the generated numbers should have}}
 
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{{par|UIntType|the type of the generated random numbers. The effect is undefined unless the parameter is cv-unqualified and is one of {{c|unsigned short}}, {{c|unsigned int}}, {{c|unsigned long}}, or {{c|unsigned long long}}.}}
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{{par|UIntType|the type of the generated random numbers. The effect is undefined unless the parameter is cv-unqualified and is one of {{c/core|unsigned short}}, {{c/core|unsigned int}}, {{c/core|unsigned long}}, or {{c/core|unsigned long long}}.}}
 
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Latest revision as of 16:31, 19 March 2024

 
C++
 
Numerics library
Common mathematical functions
Mathematical special functions (C++17)
Mathematical constants (C++20)
Basic linear algebra algorithms (C++26)
Floating-point environment (C++11)
Complex numbers
Numeric array (valarray)
Pseudo-random number generation
Factor operations
(C++17)
(C++17)
Interpolations
(C++20)
(C++20)
Saturation arithmetic
(C++26)
(C++26)
(C++26)
(C++26)
(C++26)

Generic numeric operations
Bit operations
(C++20)    
(C++20)
(C++20)
(C++20)
(C++20)
(C++20)
(C++20)
(C++20)
(C++20)
(C++20)
(C++20)
(C++20)
(C++23)
(C++20)
 
Pseudo-random number generation
 
std::independent_bits_engine
 
Defined in header <random>
template<

    class Engine,
    std::size_t W,
    class UIntType

> class independent_bits_engine;
 (since C++11)

independent_bits_engine is a random number engine adaptor that produces random numbers with different number of bits than that of the wrapped engine.

Contents

[edit] Template parameters

Engine - the type of the wrapped engine
W - the number of bits the generated numbers should have
UIntType - the type of the generated random numbers. The effect is undefined unless the parameter is cv-unqualified and is one of unsigned short, unsigned int, unsigned long, or unsigned long long.
Type requirements
-
Engine must meet the requirements of RandomNumberEngine.
-
W must be greater than zero, and no greater than std::numeric_limits<UIntType>::digits.

[edit] Member types

Member type Definition
result_type (C++11) UIntType

[edit] 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 (always zero).
(public static member function) [edit]
[static] (C++11)
 gets the largest possible value in the output range (always 2w - 1).
(public static member function) [edit]

[edit] Non-member functions

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

[edit] Example

This section is incomplete
Reason: no example
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