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Derived unit factory helpers refactored

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Mateusz Pusz committed 2019-11-08 16:51:45 +00:00
1 parent ad895b4651
commit 0125bd7762
23 files changed
+116 -92
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src/include/units/unit.h
+23 -20
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@@ -273,38 +273,41 @@ namespace units {
// derived_unit
template<typename Child, basic_fixed_string Symbol, Dimension D, typename PrefixType = no_prefix>
struct named_coherent_derived_unit : downcast_child<Child, unit<D, ratio<1>>> {
template<typename Child, Dimension Dim, basic_fixed_string Symbol, PrefixType PT>
struct named_coherent_derived_unit : downcast_child<Child, unit<Dim, ratio<1>>> {
static constexpr auto symbol = Symbol;
using prefix_type = PrefixType;
using prefix_type = PT;
};
template<typename Child, Dimension D, typename PrefixType = no_prefix>
struct coherent_derived_unit : downcast_child<Child, unit<D, ratio<1>>> {
static constexpr auto symbol = detail::symbol_text(D());
using prefix_type = PrefixType;
template<typename Child, Dimension Dim>
struct coherent_derived_unit : downcast_child<Child, unit<Dim, ratio<1>>> {
static constexpr auto symbol = detail::symbol_text(Dim());
using prefix_type = no_prefix;
};
template<typename Child, basic_fixed_string Symbol, Dimension D, Ratio R>
struct named_derived_unit : downcast_child<Child, unit<D, R>> {
template<typename Child, Dimension Dim, basic_fixed_string Symbol, Ratio R, PrefixType PT = no_prefix>
struct named_scaled_derived_unit : downcast_child<Child, unit<Dim, R>> {
static constexpr auto symbol = Symbol;
using prefix_type = PT;
};
template<typename Child, Dimension Dim, basic_fixed_string Symbol, PrefixType PT, Unit U, Unit... Us>
struct named_deduced_derived_unit : downcast_child<Child, detail::make_derived_unit<Dim, U, Us...>> {
static constexpr auto symbol = Symbol;
using prefix_type = PT;
};
template<typename Child, Dimension Dim, Unit U, Unit... Us>
struct deduced_derived_unit : downcast_child<Child, detail::make_derived_unit<Dim, U, Us...>> {
static constexpr auto symbol = basic_fixed_string("bbb");
using prefix_type = no_prefix;
};
template<typename Child, Prefix P, Unit U>
requires requires { U::symbol; }
requires (!std::same_as<typename U::prefix_type, no_prefix>)
struct prefixed_derived_unit : downcast_child<Child, unit<typename U::dimension, ratio_multiply<typename P::ratio, typename U::ratio>>> {
static constexpr auto symbol = P::symbol + U::symbol;
using prefix_type = P::prefix_type;
};
template<typename Child, basic_fixed_string Symbol, Dimension D, Unit U, Unit... Us>
struct named_deduced_derived_unit : downcast_child<Child, detail::make_derived_unit<D, U, Us...>> {
static constexpr auto symbol = Symbol;
};
template<typename Child, Dimension D, Unit U, Unit... Us>
struct deduced_derived_unit : downcast_child<Child, detail::make_derived_unit<D, U, Us...>> {
static constexpr auto symbol = basic_fixed_string("bbb");
};
} // namespace units