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Struct std.random.MersenneTwisterEngine
The Mersenne Twister generator.
struct MersenneTwisterEngine(UIntType, ulong w, ulong n, ulong m, ulong r, UIntType a, ulong u, UIntType d, ulong s, UIntType b, ulong t, UIntType c, ulong l, UIntType f)
if (isUnsigned!UIntType);
Constructors
Name | Description |
---|---|
this
(value)
|
Constructs a MersenneTwisterEngine object. |
Properties
Name | Type | Description |
---|---|---|
front [get]
|
UIntType | Returns the current random value. |
save [get]
|
typeof(this) |
Methods
Name | Description |
---|---|
defaultState
()
|
Generates the default initial state for a Mersenne
Twister; equivalent to the internal state obtained
by calling seed(defaultSeed)
|
popFront
()
|
Advances the generator. |
seed
(value)
|
Seeds a MersenneTwisterEngine object. |
seed
(range)
|
Seeds a MersenneTwisterEngine object using an InputRange. |
seedImpl
(value, mtState)
|
Implementation of the seeding mechanism, which
can be used with an arbitrary State instance
|
seedImpl
(range, mtState)
|
Implementation of the range-based seeding mechanism,
which can be used with an arbitrary State instance
|
Example
// seed with a constant
Mt19937 gen;
auto n = gen .front; // same for each run
writeln(n); // 3499211612
// Seed with an unpredictable value
gen .seed(unpredictableSeed);
n = gen .front; // different across runs
Authors
Andrei Alexandrescu Masahiro Nakagawa (Xorshift random generator) Joseph Rushton Wakeling (Algorithm D for random sampling) Ilya Yaroshenko (Mersenne Twister implementation, adapted from mir-random)
License
Copyright © 1999-2022 by the D Language Foundation | Page generated by ddox.