duration_common_type.h

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#pragma once
 
#include "di/chrono/duration/duration_forward_declaration.h"
#include "di/meta/common.h"
 
namespace di {
template<typename Rep1, math::detail::IsRatio Period1, typename Rep2, math::detail::IsRatio Period2>
requires(concepts::CommonWith<Rep1, Rep2>)
struct meta::CustomCommonType<chrono::Duration<Rep1, Period1>, chrono::Duration<Rep2, Period2>> {
    using Type =
        chrono::Duration<meta::CommonType<Rep1, Rep2>,
                         math::Ratio<math::gcd(Period1::num, Period2::num), math::lcm(Period1::den, Period2::den)>>;
};
}