26 lines
671 B
C++
26 lines
671 B
C++
#pragma once
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#include <limits>
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#include <random>
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namespace base
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{
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template <class T>
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class UniformRandom
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{
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static_assert(std::is_integral<T>::value);
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std::random_device m_rd;
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std::mt19937 m_gen;
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using distribution_int_type =
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std::conditional_t<sizeof(T) != 1, T, std::conditional_t<std::is_signed_v<T>, short, unsigned short>>;
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std::uniform_int_distribution<distribution_int_type> m_distr;
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public:
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UniformRandom(T min, T max) : m_gen(m_rd()), m_distr(min, max) {}
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UniformRandom() : UniformRandom(std::numeric_limits<T>::min(), std::numeric_limits<T>::max()) {}
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T operator()() { return static_cast<T>(m_distr(m_gen)); }
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};
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} // namespace base
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