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

[rand.dist.uni.int]

29 Numerics library [numerics] 29.6 Random number generation [rand] 29.6.8 Random number distribution class templates [rand.dist] 29.6.8.2 Uniform distributions [rand.dist.uni] 29.6.8.2.1 Class template uniform_­int_­distribution [rand.dist.uni.int]

A uniform_­int_­distribution random number distribution produces random integers i, aib, distributed according to the constant discrete probability function

P(i|a,b)=1/(ba+1).

template<class IntType = int>
  class uniform_int_distribution {
  public:
        using result_type = IntType;
    using param_type  = unspecified;

        explicit uniform_int_distribution(IntType a = 0, IntType b = numeric_limits<IntType>::max());
    explicit uniform_int_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);

        result_type a() const;
    result_type b() const;
    param_type param() const;
    void param(const param_type& parm);
    result_type min() const;
    result_type max() const;
  };

explicit uniform_int_distribution(IntType a = 0, IntType b = numeric_limits<IntType>::max());

Effects: Constructs a uniform_­int_­distribution object; a and b correspond to the respective parameters of the distribution.

result_type a() const;

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

result_type b() const;

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


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