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feat: quantity_point

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This commit is contained in:
Johel Ernesto Guerrero Peña
2020-06-17 15:31:22 +02:00
committed by Mateusz Pusz
parent 75274e13ca
commit 75119eef3f
6 changed files with 561 additions and 0 deletions
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src/include/units/bits/common_quantity.h
+17
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@@ -29,6 +29,9 @@ namespace units {
template<Dimension D, UnitOf<D> U, Scalar Rep>
class quantity;
template<Dimension D, UnitOf<D> U, Scalar Rep>
class quantity_point;
namespace detail {
template<typename Q1, typename Q2, typename Rep>
@@ -57,12 +60,20 @@ struct common_quantity_impl<quantity<D1, U1, Rep1>, quantity<D2, U2, Rep2>, Rep>
using type = quantity<D1, downcast_unit<D1, common_ratio<ratio1, ratio2>>, Rep>;
};
template<typename D, typename U, typename Rep>
quantity_point<D, U, Rep> common_quantity_point_impl(quantity<D, U, Rep>);
} // namespace detail
template<Quantity Q1, Quantity Q2, Scalar Rep = std::common_type_t<typename Q1::rep, typename Q2::rep>>
requires equivalent_dim<typename Q1::dimension, typename Q2::dimension>
using common_quantity = detail::common_quantity_impl<Q1, Q2, Rep>::type;
template<QuantityPoint QP1, QuantityPoint QP2>
requires requires { typename common_quantity<typename QP1::quantity_type, typename QP2::quantity_type>; }
using common_quantity_point = decltype(
detail::common_quantity_point_impl(common_quantity<typename QP1::quantity_type, typename QP2::quantity_type>{}));
} // namespace units
#if COMP_GCC >= 10
@@ -81,4 +92,10 @@ struct common_type<Q1, Q2> {
using type = units::common_quantity<Q1, Q2>;
};
template<units::QuantityPoint QP1, units::QuantityPoint QP2>
requires requires { typename units::common_quantity_point<QP1, QP2>; }
struct common_type<QP1, QP2> {
using type = units::common_quantity_point<QP1, QP2>;
};
}