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Fractional dimension exponents support added

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Mateusz Pusz committed 2019-09-10 21:20:32 +02:00
1 parent 8587d5350d
commit bce17a8476
5 files changed
+95 -19
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src/include/units/unit.h
+8 -8
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@@ -78,20 +78,20 @@ namespace std::experimental::units {
typename get_ratio<BaseDimension, Rest...>::ratio>;
};
template<typename Result, int UnitExpValue, typename UnitRatio>
template<typename Result, int UnitExpNum, int UnitExpDen, typename UnitRatio>
struct ratio_op;
template<typename Result, typename UnitRatio>
struct ratio_op<Result, 0, UnitRatio> {
template<typename Result, int UnitExpDen, typename UnitRatio>
struct ratio_op<Result, 0, UnitExpDen, UnitRatio> {
using ratio = Result;
};
template<typename Result, int UnitExpValue, typename UnitRatio>
template<typename Result, int UnitExpNum, int UnitExpDen, typename UnitRatio>
struct ratio_op {
using calc_ratio = conditional<(UnitExpValue > 0), ratio_multiply<Result, UnitRatio>,
using calc_ratio = conditional<(UnitExpNum * UnitExpDen > 0), ratio_multiply<Result, UnitRatio>,
ratio_divide<Result, UnitRatio>>;
static constexpr int value = UnitExpValue > 0 ? UnitExpValue - 1 : UnitExpValue + 1;
using ratio = ratio_op<calc_ratio, value, UnitRatio>::ratio;
static constexpr int value = (UnitExpNum * UnitExpDen > 0) ? (UnitExpNum - UnitExpDen) : (UnitExpNum + UnitExpDen);
using ratio = ratio_op<calc_ratio, value, UnitExpDen, UnitRatio>::ratio;
};
template<typename D, typename... Us>
@@ -106,7 +106,7 @@ namespace std::experimental::units {
struct derived_ratio<dimension<E, Rest...>, Us...> {
using rest_ratio = derived_ratio<dimension<Rest...>, Us...>::ratio;
using e_ratio = get_ratio<E::dimension, Us...>::ratio;
using ratio = ratio_op<rest_ratio, E::value, e_ratio>::ratio;
using ratio = ratio_op<rest_ratio, E::num, E::den, e_ratio>::ratio;
};
}