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fix: quantity.in(U) fixed to clone a reference from the source type

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Mateusz Pusz
2023-09-04 12:27:49 +02:00
parent f0e1e202db
commit b6bc9434d0
2 changed files with 6 additions and 2 deletions
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4
src/core/include/mp-units/quantity.h
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@@ -163,8 +163,8 @@ public:
}
template<Unit U>
requires detail::QuantityConvertibleTo<quantity, quantity<::mp_units::reference<quantity_spec, U{}>{}, Rep>>
[[nodiscard]] constexpr quantity<::mp_units::reference<quantity_spec, U{}>{}, Rep> in(U) const
requires detail::QuantityConvertibleTo<quantity, quantity<quantity_spec[U{}], Rep>>
[[nodiscard]] constexpr quantity<quantity_spec[U{}], Rep> in(U) const
{
return quantity<quantity_spec[U{}], Rep>{*this};
}

4
test/unit_test/static/quantity_test.cpp
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@@ -200,6 +200,10 @@ static_assert(quantity<isq::length[km]>(1500 * m).numerical_value() == 1.5);
// converting to a different unit
///////////////////////////////////
static_assert(is_of_type<(2. * km).in(m), quantity<si::metre>>);
static_assert(is_of_type<isq::length(2. * km).in(m), quantity<isq::length[m]>>);
static_assert(is_of_type<isq::height(2. * km).in(m), quantity<isq::height[m]>>);
static_assert(quantity<isq::length[km]>(2. * km).in(km).numerical_value() == 2.);
static_assert(quantity<isq::length[km]>(2. * km).in(m).numerical_value() == 2000.);
static_assert(quantity<isq::length[m]>(2000. * m).in(km).numerical_value() == 2.);