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Design cleanup

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- unknown_unit added
- examples refactored
- base_type renamed to downcast_base_type
- scaled_unit renamed to named_scaled_unit
- detail::reference_unit renamed to scaled_unit
- quantity_test cleanup
This commit is contained in:
Mateusz Pusz committed 2019-12-06 12:18:39 +01:00
1 parent c48bfe2098
commit f31b26b5e5
22 files changed
+354 -160
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src/include/units/derived_dimension.h
+30 -6
View File
@@ -246,15 +246,39 @@ struct derived_dimension<Child, U, E, ERest...> : downcast_child<Child, typename
using coherent_unit = U;
};
// unknown_unit
struct unknown_unit {};
namespace detail {
template<typename T>
concept PredefinedDimension = Dimension<T> && requires { typename T::coherent_unit; };
template<Dimension D, Ratio R>
auto unit_for_dimension_impl()
{
if constexpr(PredefinedDimension<D>) {
return downcast<scaled_unit<typename D::coherent_unit::reference, R>>{};
}
else {
return scaled_unit<unknown_unit, R>{};
}
}
template<Dimension D, Ratio R>
using unit_for_dimension = decltype(unit_for_dimension_impl<D, R>());
}
// same_dim
template<Dimension D1, Dimension D2>
inline constexpr bool same_dim;
inline constexpr bool same_dim = false;
template<BaseDimension D1, BaseDimension D2>
inline constexpr bool same_dim<D1, D2> = std::is_same_v<D1, D2>;
template<DerivedDimension D1, DerivedDimension D2>
inline constexpr bool same_dim<D1, D2> = std::is_same_v<typename D1::base_type, typename D2::base_type>;
inline constexpr bool same_dim<D1, D2> = std::is_same_v<typename D1::downcast_base_type, typename D2::downcast_base_type>;
// dim_invert
namespace detail {
@@ -321,7 +345,7 @@ struct dimension_multiply_impl<D1, D2> {
template<BaseDimension D1, DerivedDimension D2>
struct dimension_multiply_impl<D1, D2> {
using type = downcast<merge_dimension<derived_dimension<exp<D1, 1>>, typename D2::base_type>>;
using type = downcast<merge_dimension<derived_dimension<exp<D1, 1>>, typename D2::downcast_base_type>>;
};
template<DerivedDimension D1, BaseDimension D2>
@@ -331,7 +355,7 @@ struct dimension_multiply_impl<D1, D2> {
template<DerivedDimension D1, DerivedDimension D2>
struct dimension_multiply_impl<D1, D2> {
using type = downcast<merge_dimension<typename D1::base_type, typename D2::base_type>>;
using type = downcast<merge_dimension<typename D1::downcast_base_type, typename D2::downcast_base_type>>;
};
} // namespace detail
@@ -360,7 +384,7 @@ struct dimension_sqrt_impl<derived_dimension<exp<D, 2>>> {
template<DerivedDimension D>
struct dimension_sqrt_impl<D> {
using type = dimension_sqrt_impl<typename D::base_type>;
using type = dimension_sqrt_impl<typename D::downcast_base_type>;
};
template<typename... Es>
@@ -371,7 +395,7 @@ struct dimension_sqrt_impl<derived_dimension<Es...>> {
} // namespace detail
template<Dimension D>
using dimension_sqrt = detail::dimension_sqrt_impl<typename D::base_type>::type;
using dimension_sqrt = detail::dimension_sqrt_impl<typename D::downcast_base_type>::type;
// dimension_pow
namespace detail {