diff --git a/bitgenerators/Bitgen/PCG64/index.html b/bitgenerators/Bitgen/PCG64/index.html index 06ba3b2..2183985 100644 --- a/bitgenerators/Bitgen/PCG64/index.html +++ b/bitgenerators/Bitgen/PCG64/index.html @@ -1,2 +1,2 @@ -
Bitgen.PCG64
PCG-64 is a 128-bit implementation of O'Neill's permutation congruential generator. PCG-64 has a period of 2^{128}
and supports advancing an arbitrary number of steps as well as 2^{127}
streams.
The specific member of the PCG family that we use is PCG XSL RR 128/64. The PCG64 state vector consists of 2 unsigned 128-bit values. One is the state of the PRNG, which is advanced by a linear congruential generator (LCG). The second is a fixed odd increment used in the LCG.
The input seed is processed by SeedSequence
to generate both values.
next_uint64 t
Generates a random unsigned 64-bit integer and a state of the generator advanced forward by one step.
next_uint32 t
Generates a random unsigned 32-bit integer and a state of the generator advanced forward by one step.
next_double t
Generates a random 64 bit float and a state of the generator advanced forward by one step.
val initialize : Bitgen__.Seed.SeedSequence.t -> t
initialize s
Returns the initial state of the generator. The random stream is determined by the initialization of the seed sequence s
of SeedSequence.t
type.
advance delta
Advances the underlying RNG as if delta
draws have been made. The returned state is that of the generator delta
steps forward.
Bitgen.PCG64
PCG-64 is a 128-bit implementation of O'Neill's permutation congruential generator. PCG-64 has a period of 2^{128}
and supports advancing an arbitrary number of steps as well as 2^{127}
streams.
The specific member of the PCG family that we use is PCG XSL RR 128/64. The PCG64 state vector consists of 2 unsigned 128-bit values. One is the state of the PRNG, which is advanced by a linear congruential generator (LCG). The second is a fixed odd increment used in the LCG.
The input seed is processed by SeedSequence
to generate both values.
next_uint64 t
Generates a random unsigned 64-bit integer and a state of the generator advanced forward by one step.
next_uint32 t
Generates a random unsigned 32-bit integer and a state of the generator advanced forward by one step.
next_double t
Generates a random 64 bit float and a state of the generator advanced forward by one step.
val initialize : Bitgen__.Seed.SeedSequence.t -> t
initialize s
Returns the initial state of the generator. The random stream is determined by the initialization of the seed sequence s
of SeedSequence.t
type.
advance delta
Advances the underlying RNG as if delta
draws have been made. The returned state is that of the generator delta
steps forward.