Class XoShiRo128PlusPlus

All Implemented Interfaces:
RandomIntSource, JumpableUniformRandomProvider, LongJumpableUniformRandomProvider, RestorableUniformRandomProvider, UniformRandomProvider

public class XoShiRo128PlusPlus extends AbstractXoShiRo128
A fast all-purpose 32-bit generator. For faster generation of float values try the XoShiRo128Plus generator.

This is a member of the Xor-Shift-Rotate family of generators. Memory footprint is 128 bits.

Since:
1.3
See Also:
  • Constructor Details

    • XoShiRo128PlusPlus

      public XoShiRo128PlusPlus(int[] seed)
      Creates a new instance.
      Parameters:
      seed - Initial seed. If the length is larger than 4, only the first 4 elements will be used; if smaller, the remaining elements will be automatically set. A seed containing all zeros will create a non-functional generator.
    • XoShiRo128PlusPlus

      public XoShiRo128PlusPlus(int seed0, int seed1, int seed2, int seed3)
      Creates a new instance using a 4 element seed. A seed containing all zeros will create a non-functional generator.
      Parameters:
      seed0 - Initial seed element 0.
      seed1 - Initial seed element 1.
      seed2 - Initial seed element 2.
      seed3 - Initial seed element 3.
    • XoShiRo128PlusPlus

      protected XoShiRo128PlusPlus(XoShiRo128PlusPlus source)
      Creates a copy instance.
      Parameters:
      source - Source to copy.
  • Method Details

    • nextOutput

      protected int nextOutput()
      Use the current state to compute the next output from the generator. The output function shall vary with respect to different generators. This method is called from AbstractXoShiRo128.next() before the current state is updated.
      Specified by:
      nextOutput in class AbstractXoShiRo128
      Returns:
      the next output
    • copy

      protected XoShiRo128PlusPlus copy()
      Create a copy.
      Specified by:
      copy in class AbstractXoShiRo128
      Returns:
      the copy