class Random::MT19937

Included Modules

Defined in:

random/mt19937.cr

Constant Summary

LOWER_MASK = 2147483647_u32
M = 397
MATRIX_A = 2567483615_u32
N = 624
UPPER_MASK = 2147483648_u32

Class Method Summary

Instance Method Summary

Instance methods inherited from module Random

next_bool : Bool next_bool, next_float : Float64 next_float, next_int : Int32 next_int, next_u : UInt next_u, rand(max : Int) : Int
rand(max : Float) : Float64
rand(range : Range(Int, Int)) : Int
rand(range : Range(Float, Float)) : Float64
rand : Float64 rand

Class methods inherited from module Random

new(seed = new_seed) new, new_seed : UInt32 new_seed, rand(x)
rand : Float64 rand

Instance methods inherited from class Reference

==(other : self)
==(other) ==, dup dup, hash hash, inspect(io : IO) : Nil inspect, object_id : UInt64 object_id, same?(other : Reference)
same?(other : Nil) same?, to_s(io : IO) : Nil to_s

Class 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, crystal_type_id crystal_type_id, dup dup, hash hash, inspect(io : IO)
inspect inspect, itself itself, not_nil! not_nil!, tap(&block) tap, to_json to_json, to_pretty_json(indent : String = " ")
to_pretty_json(io : IO, indent : String = " ") to_pretty_json, to_s
to_s(io : IO) to_s, to_yaml(io : IO)
to_yaml to_yaml, try(&block) try

Class methods inherited from class Object

==(other : Class) ==, ===(other) ===, cast(other) : self cast, clone clone, dup dup, from_json(string_or_io, root : String) : self
from_json(string_or_io) : self from_json, from_yaml(string : String) : self from_yaml, hash hash, inspect(io) inspect, name : String name, nilable? nilable?, to_s(io) to_s, |(other : U.class) forall U |

Class Method Detail

def self.new(seed : Int) #

[View source]
def self.new(seeds = StaticArray(UInt32, 4).new do Random.new_seed end) #

[View source]

Instance Method Detail

def new_seed(seeds = StaticArray(UInt32, 4).new do Random.new_seed end) #

[View source]
def next_u #

[View source]