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feat: QuantityLike and QuantityPointLike conversions improved

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Mateusz Pusz
2023-10-02 21:12:25 -06:00
parent e9387c4014
commit 2281be0f76
2 changed files with 41 additions and 24 deletions
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30
src/core/include/mp-units/quantity.h
View File

@@ -133,9 +133,9 @@ public:
template<QuantityLike Q>
requires detail::QuantityConvertibleTo<
quantity<quantity_like_traits<Q>::reference, typename quantity_like_traits<Q>::rep>, quantity>
constexpr explicit(
is_specialization_of<decltype(quantity_like_traits<Q>::to_numerical_value(std::declval<Q>())), convert_explicitly>)
quantity(const Q& q) :
constexpr explicit(is_specialization_of<decltype(quantity_like_traits<Q>::to_numerical_value(std::declval<Q>())),
convert_explicitly> ||
!std::convertible_to<typename Q::rep, Rep>) quantity(const Q& q) :
quantity(make_quantity<quantity_like_traits<Q>::reference>(quantity_like_traits<Q>::to_numerical_value(q).value))
{
}
@@ -192,22 +192,26 @@ public:
}
// conversion operators
template<typename Q>
requires QuantityLike<std::remove_cvref_t<Q>>
template<typename Q_, QuantityLike Q = std::remove_cvref_t<Q_>>
requires detail::QuantityConvertibleTo<
quantity, quantity<quantity_like_traits<Q>::reference, typename quantity_like_traits<Q>::rep>>
[[nodiscard]] explicit(is_specialization_of<decltype(quantity_like_traits<Q>::from_numerical_value(numerical_value_)),
convert_explicitly>) constexpr
operator Q() const& noexcept(noexcept(quantity_like_traits<Q>::from_numerical_value(numerical_value_)) &&
std::is_nothrow_copy_constructible_v<rep>)
convert_explicitly> ||
!std::convertible_to<Rep, typename Q::rep>) constexpr
operator Q_() const& noexcept(noexcept(quantity_like_traits<Q>::from_numerical_value(numerical_value_)) &&
std::is_nothrow_copy_constructible_v<rep>)
{
return quantity_like_traits<Q>::from_numerical_value(numerical_value_).value;
}
template<typename Q>
requires QuantityLike<std::remove_cvref_t<Q>>
template<typename Q_, QuantityLike Q = std::remove_cvref_t<Q_>>
requires detail::QuantityConvertibleTo<
quantity, quantity<quantity_like_traits<Q>::reference, typename quantity_like_traits<Q>::rep>>
[[nodiscard]] explicit(is_specialization_of<decltype(quantity_like_traits<Q>::from_numerical_value(numerical_value_)),
convert_explicitly>) constexpr
operator Q() && noexcept(noexcept(quantity_like_traits<Q>::from_numerical_value(numerical_value_)) &&
std::is_nothrow_move_constructible_v<rep>)
convert_explicitly> ||
!std::convertible_to<Rep, typename Q::rep>) constexpr
operator Q_() && noexcept(noexcept(quantity_like_traits<Q>::from_numerical_value(numerical_value_)) &&
std::is_nothrow_move_constructible_v<rep>)
{
return quantity_like_traits<Q>::from_numerical_value(std::move(numerical_value_)).value;
}

35
src/core/include/mp-units/quantity_point.h
View File

@@ -129,7 +129,10 @@ public:
quantity<quantity_point_like_traits<QP>::reference, typename quantity_point_like_traits<QP>::rep>,
quantity_type>
constexpr explicit(
is_specialization_of<decltype(quantity_point_like_traits<QP>::to_quantity(std::declval<QP>())), convert_explicitly>)
is_specialization_of<decltype(quantity_point_like_traits<QP>::to_quantity(std::declval<QP>())),
convert_explicitly> ||
!std::convertible_to<
quantity<quantity_point_like_traits<QP>::reference, typename quantity_point_like_traits<QP>::rep>, quantity_type>)
quantity_point(const QP& qp) :
quantity_from_origin_(quantity_point_like_traits<QP>::to_quantity(qp).value)
{
@@ -186,24 +189,34 @@ public:
}
// conversion operators
template<typename QP>
requires QuantityPointLike<std::remove_cvref_t<QP>>
template<typename QP_, QuantityPointLike QP = std::remove_cvref_t<QP_>>
requires std::same_as<std::remove_const_t<decltype(point_origin)>,
std::remove_const_t<decltype(quantity_point_like_traits<QP>::point_origin)>> &&
std::convertible_to<quantity_type, quantity<quantity_point_like_traits<QP>::reference,
typename quantity_point_like_traits<QP>::rep>>
[[nodiscard]] explicit(
is_specialization_of<decltype(quantity_point_like_traits<QP>::from_quantity(quantity_from_origin_)),
convert_explicitly>) constexpr
operator QP() const& noexcept(noexcept(quantity_point_like_traits<QP>::from_quantity(quantity_from_origin_)) &&
std::is_nothrow_copy_constructible_v<rep>)
convert_explicitly> ||
!std::convertible_to<quantity_type, quantity<quantity_point_like_traits<QP>::reference,
typename quantity_point_like_traits<QP>::rep>>) constexpr
operator QP_() const& noexcept(noexcept(quantity_point_like_traits<QP>::from_quantity(quantity_from_origin_)) &&
std::is_nothrow_copy_constructible_v<rep>)
{
return quantity_point_like_traits<QP>::from_quantity(quantity_from_origin_).value;
}
template<typename QP>
requires QuantityPointLike<std::remove_cvref_t<QP>>
template<typename QP_, QuantityPointLike QP = std::remove_cvref_t<QP_>>
requires std::same_as<std::remove_const_t<decltype(point_origin)>,
std::remove_const_t<decltype(quantity_point_like_traits<QP>::point_origin)>> &&
std::convertible_to<quantity_type, quantity<quantity_point_like_traits<QP>::reference,
typename quantity_point_like_traits<QP>::rep>>
[[nodiscard]] explicit(
is_specialization_of<decltype(quantity_point_like_traits<QP>::from_quantity(quantity_from_origin_)),
convert_explicitly>) constexpr
operator QP() && noexcept(noexcept(quantity_point_like_traits<QP>::from_quantity(quantity_from_origin_)) &&
std::is_nothrow_move_constructible_v<rep>)
convert_explicitly> ||
!std::convertible_to<quantity_type, quantity<quantity_point_like_traits<QP>::reference,
typename quantity_point_like_traits<QP>::rep>>) constexpr
operator QP_() && noexcept(noexcept(quantity_point_like_traits<QP>::from_quantity(quantity_from_origin_)) &&
std::is_nothrow_move_constructible_v<rep>)
{
return quantity_point_like_traits<QP>::from_quantity(std::move(quantity_from_origin_)).value;
}