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added inheritance unit-test and made is_quantity<T> more specific

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Ralph J. Steinhagen
2021-06-27 14:07:01 +02:00
parent 1f27646d4c
commit 7baaefe813
3 changed files with 24 additions and 1 deletions
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test/unit_test/static/quantity_test.cpp
+12
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@@ -234,6 +234,18 @@ static_assert(length<kilometre, int>(2_q_km).number() == 2);
static_assert(length<metre, int>(2_q_km).number() == 2000);
static_assert(length<kilometre>(1500_q_m).number() == 1.5);
///////////////////////////////////////
// derived quantities
///////////////////////////////////////
template<Representation Rep, units::Quantity Q, const units::basic_fixed_string additional_nttp_argument>
struct derived_quantity : quantity<typename Q::dimension, typename Q::unit, Rep> {
using dimension = typename Q::dimension;
using unit = typename Q::unit;
using rep = Rep;
};
static_assert(units::detail::is_quantity<derived_quantity<double, si::length<metre>, "NTTP type description">>);
/////////
// CTAD