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feat: two argument explicit cast support added

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Mateusz Pusz
2020-09-10 13:01:38 +02:00
parent 44e8d39102
commit 9cd0cb4105
7 changed files with 72 additions and 11 deletions
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src/include/units/quantity_cast.h
+51 -5
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@@ -301,7 +301,7 @@ constexpr ratio cast_ratio(const Q1& from, const Q2& to)
} // namespace detail
/**
* @brief Explcit cast of a quantity
* @brief Explicit cast of a quantity
*
* Implicit conversions between quantities of different types are allowed only for "safe"
* (i.e. non-truncating) conversion. In such cases an explicit cast have to be used.
@@ -325,7 +325,7 @@ template<Quantity To, typename D, typename U, typename Rep>
}
/**
* @brief Explcit cast of a quantity
* @brief Explicit cast of a quantity
*
* Implicit conversions between quantities of different types are allowed only for "safe"
* (i.e. non-truncating) conversion. In such cases an explicit cast have to be used.
@@ -344,7 +344,7 @@ template<Dimension ToD, typename D, typename U, typename Rep>
}
/**
* @brief Explcit cast of a quantity
* @brief Explicit cast of a quantity
*
* Implicit conversions between quantities of different types are allowed only for "safe"
* (i.e. non-truncating) conversion. In such cases an explicit cast have to be used.
@@ -363,7 +363,30 @@ template<Unit ToU, typename D, typename U, typename Rep>
}
/**
* @brief Explcit cast of a quantity
* @brief Explicit cast of a quantity
*
* Implicit conversions between quantities of different types are allowed only for "safe"
* (i.e. non-truncating) conversion. In such cases an explicit cast have to be used.
*
* This cast gets both the target dimension and unit to cast to. For example:
*
* auto q1 = units::quantity_cast<units::physical::si::dim_speed, units::physical::si::kilometre_per_hour>(v1);
*
* @note This cast is especially useful when working with quantities of unknown dimensions
* (@c unknown_dimension).
*
* @tparam ToD a dimension type to use for a target quantity
* @tparam ToU a unit type to use for a target quantity
*/
template<Dimension ToD, Unit ToU, typename D, typename U, typename Rep>
requires equivalent<ToD, D> && UnitOf<ToU, ToD>
[[nodiscard]] constexpr auto quantity_cast(const quantity<D, U, Rep>& q)
{
return quantity_cast<quantity<ToD, ToU, Rep>>(q);
}
/**
* @brief Explicit cast of a quantity
*
* Implicit conversions between quantities of different types are allowed only for "safe"
* (i.e. non-truncating) conversion. In such cases an explicit cast have to be used.
@@ -381,7 +404,7 @@ template<ScalableNumber ToRep, typename D, typename U, typename Rep>
}
/**
* @brief Explcit cast of a quantity point
* @brief Explicit cast of a quantity point
*
* Implicit conversions between quantity points of different types are allowed only for "safe"
* (i.e. non-truncating) conversion. In other cases an explicit cast has to be used.
@@ -407,6 +430,29 @@ template<typename CastSpec, typename D, typename U, typename Rep>
return quantity_point(quantity_cast<CastSpec>(qp.relative()));
}
/**
* @brief Explicit cast of a quantity point
*
* Implicit conversions between quantity points of different types are allowed only for "safe"
* (i.e. non-truncating) conversion. In other cases an explicit cast has to be used.
*
* This cast gets both the target dimension and unit to cast to. For example:
*
* auto q1 = units::quantity_point_cast<units::physical::si::dim_speed, units::physical::si::kilometre_per_hour>(v1);
*
* @note This cast is especially useful when working with quantity points of unknown dimensions
* (@c unknown_dimension).
*
* @tparam ToD a dimension type to use for a target quantity
* @tparam ToU a unit type to use for a target quantity
*/
template<Dimension ToD, Unit ToU, typename D, typename U, typename Rep>
requires equivalent<ToD, D> && UnitOf<ToU, ToD>
[[nodiscard]] constexpr auto quantity_point_cast(const quantity_point<D, U, Rep>& q)
{
return quantity_point_cast<quantity_point<ToD, ToU, Rep>>(q);
}
} // namespace units
#ifdef _MSC_VER