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#pragma once
#include <cstddef>
#include <cstdint>
#include <concepts>
#include <type_traits>
namespace floormat {
struct random_engine
{
virtual ~random_engine();
virtual std::common_type_t<std::size_t, std::uintptr_t, std::ptrdiff_t> operator()() = 0;
template<std::integral T>
requires (sizeof(T) <= sizeof(std::size_t))
T operator()(T max) {
return static_cast<T>(operator()() % static_cast<std::size_t>(max));
}
template<std::integral T>
requires (sizeof(T) <= sizeof(std::size_t))
T operator()(T min, T max) {
return min + operator()(max-min);
}
virtual float operator()(float min, float max) = 0;
};
[[maybe_unused]] extern random_engine& random; // NOLINT(cppcoreguidelines-avoid-non-const-global-variables)
} // namespace floormat
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