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Showing content from https://timsong-cpp.github.io/cppwp/n4659/rand.dist.bern.bernoulli below:

[rand.dist.bern.bernoulli]

29 Numerics library [numerics] 29.6 Random number generation [rand] 29.6.8 Random number distribution class templates [rand.dist] 29.6.8.3 Bernoulli distributions [rand.dist.bern] 29.6.8.3.1 Class bernoulli_­distribution [rand.dist.bern.bernoulli]

A bernoulli_­distribution random number distribution produces bool values b distributed according to the discrete probability function

P(b|p)={pifb=true1pifb=false.

class bernoulli_distribution {
public:
    using result_type = bool;
  using param_type  = unspecified;

    explicit bernoulli_distribution(double p = 0.5);
  explicit bernoulli_distribution(const param_type& parm);
  void reset();

    template<class URBG>
    result_type operator()(URBG& g);
  template<class URBG>
    result_type operator()(URBG& g, const param_type& parm);

    double p() const;
  param_type param() const;
  void param(const param_type& parm);
  result_type min() const;
  result_type max() const;
};

explicit bernoulli_distribution(double p = 0.5);

Effects: Constructs a bernoulli_­distribution object; p corresponds to the parameter of the distribution.

double p() const;

Returns: The value of the p parameter with which the object was constructed.


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