Class Random

pose_graph/ThirdParty/DUtils/Random.h:21–103

Functions to generate pseudo-random numbers

/// Functions to generate pseudo-random numbers
class Random {
 public:
  class UnrepeatedRandomizer;

 public:
  /**
   * Sets the random number seed to the current time
   */
  static void SeedRand();

  /**
   * Sets the random number seed to the current time only the first
   * time this function is called
   */
  static void SeedRandOnce();

  /**
   * Sets the given random number seed
   * @param seed
   */
  static void SeedRand(int seed);

  /**
   * Sets the given random number seed only the first time this function
   * is called
   * @param seed
   */
  static void SeedRandOnce(int seed);

  /**
   * Returns a random number in the range [0..1]
   * @return random T number in [0..1]
   */
  template <class T>
  static T RandomValue() {
    return (T)rand() / (T)RAND_MAX;
  }

  /**
   * Returns a random number in the range [min..max]
   * @param min
   * @param max
   * @return random T number in [min..max]
   */
  template <class T>
  static T RandomValue(T min, T max) {
    return Random::RandomValue<T>() * (max - min) + min;
  }

  /**
   * Returns a random int in the range [min..max]
   * @param min
   * @param max
   * @return random int in [min..max]
   */
  static int RandomInt(int min, int max);

  /**