Namespaces
Variants
Views
Actions

std::linear_congruential_engine

From cppreference.com
< cpp‎ | numeric‎ | random
Revision as of 18:46, 2 November 2012 by P12bot (Talk | contribs)

 
 
 
Pseudo-random number generation
Engines and engine adaptors
linear_congruential_engine
(C++11)
Generators
Distributions
Uniform distributions
Bernoulli distributions
Poisson distributions
Normal distributions
Sampling distributions
Seed Sequences
(C++11)
C library
 
 
Defined in header <random>
template<

    class UIntType,
    UIntType a,
    UIntType c,
    UIntType m

> class linear_congruential_engine;
(since C++11)

A linear_congruential_engine produces unsigned integer pseudorandom numbers. The state of a LCG is of size 1 and consists of a single integer.

The transition algorithm of the LCG function is x
i+1
← (ax
i
+c) mod m
.

Contents

Member types

Member type Definition
result_type The integral type generated by the engine. Results are undefined if this is not an unsigned integral type.

Member functions

Template:cpp/numeric/random/engine/dcl list constructorTemplate:cpp/numeric/random/engine/dcl list seedTemplate:cpp/numeric/random/engine/dcl list operator()Template:cpp/numeric/random/engine/dcl list discardTemplate:cpp/numeric/random/engine/dcl list minTemplate:cpp/numeric/random/engine/dcl list max
Construction and Seeding
Generation
Characteristics

Non-member functions

Template:cpp/numeric/random/engine/dcl list operator cmpTemplate:cpp/numeric/random/engine/dcl list operator ltltgtgt

Member objects

constexpr UIntType multiplier
[static]
the multiplier term (a).
(public static member constant)
constexpr UIntType increment
[static]
the increment term (c).
(public static member constant)
constexpr UIntType modulus
[static]
the modulus term (m).
(public static member constant)
constexpr UIntType default_seed
[static]
the default seed (1).
(public static member constant)