53 lines
1.2 KiB
C++
53 lines
1.2 KiB
C++
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/*
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The Capo Library
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Code covered by the MIT License
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Author: mutouyun (http://orzz.org)
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*/
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#pragma once
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#include <random> // std::default_random_engine, std::uniform_int_distribution
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#include <utility> // std::forward
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namespace capo {
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////////////////////////////////////////////////////////////////
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/// Simple way of generating random numbers
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////////////////////////////////////////////////////////////////
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template <class Engine = std::default_random_engine,
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class Distribution = std::uniform_int_distribution<>>
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class random : public Distribution
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{
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using base_t = Distribution;
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public:
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using engine_type = Engine;
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using distribution_type = Distribution;
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using result_type = typename distribution_type::result_type;
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using param_type = typename distribution_type::param_type;
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private:
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engine_type engine_;
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public:
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template <typename... T>
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random(T&&... args)
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: base_t (std::forward<T>(args)...)
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, engine_(std::random_device{}())
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{}
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result_type operator()(void)
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{
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return base_t::operator()(engine_);
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}
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result_type operator()(const param_type& parm)
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{
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return base_t::operator()(engine_, parm);
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}
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};
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} // namespace capo
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