1.5 Base class public API

Below are excerpted a few public methods of class RandomVariable that deal with the global configuration and state of the RNG.

  /**
   * \brief Set seeding behavior
   * 
   * Specify whether the POSIX device /dev/random is to
   * be used for seeding.  When this is used, the underlying
   * generator is seeded with data from /dev/random instead of
   * being seeded based upon the time of day.   Defaults to true.
   */
  static  void UseDevRandom(bool udr = true);

   /**
   * \brief Use the global seed to force precisely reproducible results.
   */ 
  static void UseGlobalSeed(uint32_t s0, uint32_t s1, uint32_t s2, 
                            uint32_t s3, uint32_t s4, uint32_t s5);

  /**
   * \brief Set the run number of this simulation
   */
  static void SetRunNumber(uint32_t n);

  /**
   * \brief Get the internal state of the RNG
   *
   * This function is for power users who understand the inner workings
   * of the underlying RngStream method used.  It returns the internal
   * state of the RNG via the input parameter.
   * \param seed Output parameter; gets overwritten with the internal state
   * of the RNG.
   */
  void GetSeed(uint32_t seed[6]) const;

We have already described the seeding configuration above.

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