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/Crystal 0.31

class Random::PCG32

Overview

pcg32_random_r:

  -  result:      32-bit unsigned int (uint32_t)
  -  period:      2^64   (* 2^63 streams)
  -  state type:  pcg32_random_t (16 bytes)
  -  output func: XSH-RR

Included Modules

Defined in:

random/pcg32.cr

Constant Summary

PCG_DEFAULT_MULTIPLIER_64 = 6364136223846793005_u64

Constructors

Instance Method Summary

Instance methods inherited from module Random

base64(n : Int = 16) : String base64, hex(n : Int = 16) : String hex, next_bool : Bool next_bool, next_float : Float64 next_float, next_int : Int32 next_int, next_u next_u, rand(range : Range(Int, Int)) : Int
rand(max : Int) : Int
rand : Float64
rand(type : UInt64.class) : UInt64
rand(type : Int64.class) : Int64
rand(type : UInt32.class) : UInt32
rand(type : Int32.class) : Int32
rand(type : UInt16.class) : UInt16
rand(type : Int16.class) : Int16
rand(type : UInt8.class) : UInt8
rand(type : Int8.class) : Int8
rand(max : Float) : Float64
rand(type : StaticArray(Int64, UNDERSCORE).class)
rand(type : StaticArray(UInt32, UNDERSCORE).class)
rand(type : StaticArray(Int32, UNDERSCORE).class)
rand(type : StaticArray(UInt16, UNDERSCORE).class)
rand(type : StaticArray(Int16, UNDERSCORE).class)
rand(type : StaticArray(UInt8, UNDERSCORE).class)
rand(type : StaticArray(Int8, UNDERSCORE).class)
rand(range : Range(Float, Float)) : Float
rand(type : StaticArray(UInt64, UNDERSCORE).class) rand
, random_bytes(n : Int = 16) : Bytes
random_bytes(buf : Bytes) : Nil random_bytes
, urlsafe_base64(n : Int = 16, padding = false) : String urlsafe_base64

Constructor methods inherited from module Random

new(seed, sequence = 0_u64)
new new

Class methods inherited from module Random

rand(x)
rand : Float64 rand

Instance methods inherited from class Reference

==(other : self)
==(other : JSON::Any)
==(other : YAML::Any)
==(other) ==
, dup dup, hash(hasher) hash, inspect(io : IO) : Nil inspect, object_id : UInt64 object_id, pretty_print(pp) : Nil pretty_print, same?(other : Reference)
same?(other : Nil) same?
, to_s(io : IO) : Nil to_s

Constructor methods inherited from class Reference

new new

Instance methods inherited from class Object

!=(other) !=, !~(other) !~, ==(other) ==, ===(other : JSON::Any)
===(other : YAML::Any)
===(other) ===
, =~(other) =~, class class, dup dup, hash(hasher)
hash hash
, inspect(io : IO) : Nil
inspect : String inspect
, itself itself, not_nil! not_nil!, pretty_inspect(width = 79, newline = "\n", indent = 0) : String pretty_inspect, pretty_print(pp : PrettyPrint) : Nil pretty_print, tap(&block) tap, to_json(io : IO)
to_json to_json
, to_pretty_json(indent : String = " ")
to_pretty_json(io : IO, indent : String = " ") to_pretty_json
, to_s : String
to_s(io : IO) : Nil to_s
, to_yaml(io : IO)
to_yaml to_yaml
, try(&block) try, unsafe_as(type : T.class) forall T unsafe_as

Constructor methods inherited from class Object

from_json(string_or_io, root : String) : self
from_json(string_or_io) : self from_json
, from_yaml(string_or_io : String | IO) : self from_yaml

Constructor Detail

def self.new(initstate : UInt64, initseq = 0_u64)Source

def self.newSource

Instance Method Detail

def jump(delta)Source

def new_seed(initstate : UInt64, initseq = 0_u64)Source

def new_seedSource

def next_uSource

Description copied from module Random

Generates a random unsigned integer.

The integers must be uniformly distributed between 0 and the maximal value for the chosen type.

© 2012–2019 Manas Technology Solutions.
Licensed under the Apache License, Version 2.0.
https://crystal-lang.org/api/0.31.1/Random/PCG32.html