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exponential_distribution Class

Generates an exponential distribution.

template<class RealType = double>
    class exponential_distribution {
public:
    typedef RealType input_type;
    typedef RealType result_type;
    struct param_type;
    explicit exponential_distribution(
        result_type lambda0 = result_type(1.0));
    explicit exponential_distribution(const param_type& par0);
    result_type lambda() const;
    param_type param() const;
    void param(const param_type& par0);
    result_type min() const;
    result_type max() const;
    void reset();
    template<class Engine>
        result_type operator()(Engine& eng);
    template<class Engine>
        result_type operator()(Engine& eng,
            const param_type& par0);
private:
    result_type stored_lambda;   // exposition only
    };

RealType

The floating-point engine value type.

The template class describes a distribution that produces values of a user-specified floating-point type with an exponential distribution.

Header: <random>

Namespace: std

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