MersenneTwisterEngine

The Mersenne Twister generator.

struct MersenneTwisterEngine (

UIntType

size_t w

size_t n

size_t m

size_t r

UIntType a

size_t u

UIntType d

size_t s

UIntType b

size_t t

UIntType c

size_t l

UIntType f

) if (

isUnsigned!UIntType

) {

enum bool isUniformRandom;

enum size_t wordSize;

enum size_t stateSize;

enum size_t shiftSize;

enum size_t maskBits;

enum UIntType xorMask;

enum size_t temperingU;

enum UIntType temperingD;

enum size_t temperingS;

enum UIntType temperingB;

enum size_t temperingT;

enum UIntType temperingC;

enum size_t temperingL;

enum UIntType initializationMultiplier;

enum UIntType min;

enum UIntType max;

enum UIntType defaultSeed;

this(UIntType value);

void seed(UIntType value);

void seed(T range);

void popFront();

UIntType front [@property getter];

typeof(this) save [@property getter];

enum bool empty;

}

Constructors

this this(UIntType value): Constructs a MersenneTwisterEngine object.

Members

Functions

popFront void popFront(): Advances the generator.
seed void seed(UIntType value): Seeds a MersenneTwisterEngine object. Note: This seed function gives 2^w starting points (the lowest w bits of the value provided will be used). To allow the RNG to be started in any one of its internal states use the seed overload taking an InputRange.
seed void seed(T range): Seeds a MersenneTwisterEngine object using an InputRange.

Properties

front UIntType front [@property getter]: Returns the current random value.
save typeof(this) save [@property getter]

Variables

defaultSeed enum UIntType defaultSeed;: The default seed value.
empty enum bool empty;: Always false.
isUniformRandom enum bool isUniformRandom;: Mark this as a Rng
max enum UIntType max;: Largest generated value.
min enum UIntType min;: Smallest generated value (0).
wordSize enum size_t wordSize;: Parameters for the generator.

Examples

// seed with a constant
Mt19937 gen;
auto n = gen.front; // same for each run
assert(n == 3499211612);

// Seed with an unpredictable value
gen.seed(unpredictableSeed);
n = gen.front; // different across runs

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Source

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std random aliases

functions

properties

structs

templates

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