Package it.unimi.dsi.util

Class XorGensRandomGenerator

  • All Implemented Interfaces:
    java.io.Serializable, org.apache.commons.math3.random.RandomGenerator
    public class XorGensRandomGenerator
extends org.apache.commons.math3.random.AbstractRandomGenerator
implements java.io.Serializable
    A fast, high-quality 64-bit pseudorandom number generator described in “Some long-period random number generators using shift and xors”, ANZIAM Journal 48, C188−C202, 2007.
    See Also:
    Serialized Form

    • Constructor Detail

      • XorGensRandomGenerator

        public XorGensRandomGenerator()
        Creates a new generator, initializing its seed with Util.randomSeed().

      • XorGensRandomGenerator

        public XorGensRandomGenerator​(long seed)
        Creates a new generator using a given seed.
        Parameters:
        seed - a nonzero seed for the generator (if zero, the generator will be seeded with -1).

    • Method Detail

      • setSeed

        public void setSeed​(long seed)
        Specified by:
        setSeed in interface org.apache.commons.math3.random.RandomGenerator
        Specified by:
        setSeed in class org.apache.commons.math3.random.AbstractRandomGenerator

      • nextLong

        public long nextLong()
        Specified by:
        nextLong in interface org.apache.commons.math3.random.RandomGenerator
        Overrides:
        nextLong in class org.apache.commons.math3.random.AbstractRandomGenerator

      • nextInt

        public int nextInt()
        Specified by:
        nextInt in interface org.apache.commons.math3.random.RandomGenerator
        Overrides:
        nextInt in class org.apache.commons.math3.random.AbstractRandomGenerator

      • nextInt

        public int nextInt​(int n)
        Specified by:
        nextInt in interface org.apache.commons.math3.random.RandomGenerator
        Overrides:
        nextInt in class org.apache.commons.math3.random.AbstractRandomGenerator

      • nextLong

        public long nextLong​(long n)

      • nextDouble

        public double nextDouble()
        Specified by:
        nextDouble in interface org.apache.commons.math3.random.RandomGenerator
        Specified by:
        nextDouble in class org.apache.commons.math3.random.AbstractRandomGenerator

      • nextFloat

        public float nextFloat()
        Specified by:
        nextFloat in interface org.apache.commons.math3.random.RandomGenerator
        Overrides:
        nextFloat in class org.apache.commons.math3.random.AbstractRandomGenerator

      • nextBoolean

        public boolean nextBoolean()
        Specified by:
        nextBoolean in interface org.apache.commons.math3.random.RandomGenerator
        Overrides:
        nextBoolean in class org.apache.commons.math3.random.AbstractRandomGenerator

      • nextBytes

        public void nextBytes​(byte[] bytes)
        Specified by:
        nextBytes in interface org.apache.commons.math3.random.RandomGenerator
        Overrides:
        nextBytes in class org.apache.commons.math3.random.AbstractRandomGenerator