mp-units/test/static/concepts_test.cpp

// The MIT License (MIT)
//
// Copyright (c) 2018 Mateusz Pusz
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.

#include <mp-units/systems/isq.h>
#include <mp-units/systems/natural.h>
#include <mp-units/systems/si.h>
#if MP_UNITS_HOSTED
#include <mp-units/cartesian_vector.h>
#endif
#ifdef MP_UNITS_IMPORT_STD
import std;
#else
#include <optional>
#include <type_traits>
#if MP_UNITS_HOSTED
#include <chrono>
#include <complex>
#include <string>
#endif
#endif

namespace {

using namespace mp_units;

inline constexpr struct my_origin final : absolute_point_origin<isq::length> {
} my_origin;
inline constexpr struct my_relative_origin final : relative_point_origin<my_origin + isq::length(42 * si::metre)> {
} my_relative_origin;

inline constexpr auto dim_speed = isq::dim_length / isq::dim_time;

namespace nu {
inline constexpr struct second final : named_unit<"s"> {
} second;
inline constexpr struct hour final : named_unit<"h", mag<3600> * second> {
} hour;

}  // namespace nu

// BaseDimension
static_assert(detail::BaseDimension<struct isq::dim_length>);
static_assert(!detail::BaseDimension<decltype(isq::dim_length / isq::dim_time)>);
static_assert(!detail::BaseDimension<decltype(inverse(isq::dim_time))>);
static_assert(!detail::BaseDimension<decltype(pow<2>(isq::dim_length))>);
static_assert(!detail::BaseDimension<derived_dimension<struct isq::dim_length, per<struct isq::dim_time>>>);
static_assert(!detail::BaseDimension<MP_UNITS_NONCONST_TYPE(dim_speed)>);
static_assert(!detail::BaseDimension<base_dimension<"L">>);
static_assert(!detail::BaseDimension<struct si::metre>);
static_assert(!detail::BaseDimension<int>);

// Dimension
static_assert(Dimension<struct isq::dim_length>);
static_assert(Dimension<decltype(isq::dim_length / isq::dim_time)>);
static_assert(Dimension<decltype(inverse(isq::dim_time))>);
static_assert(Dimension<decltype(pow<2>(isq::dim_length))>);
static_assert(Dimension<derived_dimension<struct isq::dim_length, per<struct isq::dim_time>>>);
static_assert(Dimension<struct dimension_one>);
static_assert(Dimension<MP_UNITS_NONCONST_TYPE(dim_speed)>);
static_assert(!Dimension<base_dimension<"L">>);
static_assert(!Dimension<struct si::metre>);
static_assert(!Dimension<int>);

// DimensionOf
static_assert(DimensionOf<struct isq::dim_length, isq::dim_length>);
static_assert(DimensionOf<struct isq::dim_length, isq::height.dimension>);
static_assert(DimensionOf<struct isq::dim_length, isq::radius.dimension>);
static_assert(!DimensionOf<struct isq::dim_length, isq::length>);
static_assert(!DimensionOf<struct isq::length, isq::dim_length>);
static_assert(!DimensionOf<struct isq::length, isq::length>);
static_assert(!DimensionOf<struct isq::dim_length, isq::dim_time>);
static_assert(!DimensionOf<struct isq::dim_length, isq::time>);
static_assert(!DimensionOf<struct isq::dim_time, isq::dim_length>);
static_assert(!DimensionOf<struct isq::dim_time, isq::length>);
static_assert(!DimensionOf<struct isq::length, isq::dim_time>);
static_assert(!DimensionOf<struct isq::length, isq::time>);
static_assert(!DimensionOf<struct isq::time, isq::dim_length>);
static_assert(!DimensionOf<struct isq::time, isq::length>);
static_assert(DimensionOf<decltype(isq::dim_length / isq::dim_time), isq::speed.dimension>);
static_assert(DimensionOf<decltype(isq::force.dimension * isq::time.dimension), isq::impulse.dimension>);
static_assert(DimensionOf<decltype(isq::angular_momentum.dimension / isq::angular_velocity.dimension),
                          isq::moment_of_inertia.dimension>);

// QuantitySpec
inline constexpr auto speed = isq::length / isq::time;

static_assert(QuantitySpec<struct isq::length>);
static_assert(QuantitySpec<struct isq::radius>);
static_assert(QuantitySpec<struct isq::speed>);
static_assert(QuantitySpec<kind_of_<struct isq::length>>);
static_assert(QuantitySpec<decltype(isq::length / isq::time)>);
static_assert(QuantitySpec<decltype(pow<2>(isq::length))>);
static_assert(QuantitySpec<struct dimensionless>);
static_assert(QuantitySpec<MP_UNITS_NONCONST_TYPE(speed)>);
static_assert(!QuantitySpec<struct isq::dim_length>);
static_assert(!QuantitySpec<int>);

// QuantitySpecOf
static_assert(QuantitySpecOf<struct isq::length, isq::length>);
static_assert(QuantitySpecOf<struct isq::height, isq::length>);
static_assert(!QuantitySpecOf<struct isq::length, isq::height>);
static_assert(QuantitySpecOf<struct isq::displacement, isq::length>);
static_assert(!QuantitySpecOf<struct isq::length, isq::displacement>);
static_assert(QuantitySpecOf<struct isq::thickness, isq::width>);
static_assert(!QuantitySpecOf<struct isq::width, isq::thickness>);
static_assert(QuantitySpecOf<kind_of_<struct isq::length>, isq::height>);
static_assert(QuantitySpecOf<kind_of_<struct isq::length>, isq::displacement>);

static_assert(!QuantitySpecOf<struct isq::angular_measure, dimensionless>);
static_assert(!QuantitySpecOf<struct isq::angular_measure, kind_of<dimensionless>>);
static_assert(!QuantitySpecOf<kind_of_<struct isq::angular_measure>, dimensionless>);
static_assert(!QuantitySpecOf<kind_of_<struct isq::angular_measure>, kind_of<dimensionless>>);

static_assert(!QuantitySpecOf<struct dimensionless, isq::angular_measure>);
static_assert(!QuantitySpecOf<struct dimensionless, kind_of<isq::angular_measure>>);
static_assert(QuantitySpecOf<kind_of_<struct dimensionless>, isq::angular_measure>);
static_assert(QuantitySpecOf<kind_of_<struct dimensionless>, kind_of<isq::angular_measure>>);

static_assert(!QuantitySpecOf<struct isq::solid_angular_measure, isq::angular_measure>);
static_assert(!QuantitySpecOf<struct isq::solid_angular_measure, kind_of<isq::angular_measure>>);
static_assert(!QuantitySpecOf<kind_of_<struct isq::solid_angular_measure>, isq::angular_measure>);
static_assert(!QuantitySpecOf<kind_of_<struct isq::solid_angular_measure>, kind_of<isq::angular_measure>>);

// NamedQuantitySpec
static_assert(detail::NamedQuantitySpec<struct isq::length>);
static_assert(detail::NamedQuantitySpec<struct isq::radius>);
static_assert(detail::NamedQuantitySpec<struct isq::speed>);
static_assert(!detail::NamedQuantitySpec<kind_of_<struct isq::length>>);
static_assert(!detail::NamedQuantitySpec<decltype(isq::length / isq::time)>);
static_assert(!detail::NamedQuantitySpec<decltype(pow<2>(isq::length))>);
static_assert(detail::NamedQuantitySpec<struct dimensionless>);
static_assert(!detail::NamedQuantitySpec<MP_UNITS_NONCONST_TYPE(speed)>);
static_assert(!detail::NamedQuantitySpec<struct isq::dim_length>);
static_assert(!detail::NamedQuantitySpec<int>);

// DerivedQuantitySpec
static_assert(!detail::DerivedQuantitySpec<struct isq::length>);
static_assert(!detail::DerivedQuantitySpec<struct isq::radius>);
static_assert(!detail::DerivedQuantitySpec<kind_of_<struct isq::length>>);
static_assert(!detail::DerivedQuantitySpec<struct isq::speed>);
static_assert(detail::DerivedQuantitySpec<decltype(isq::length / isq::time)>);
static_assert(detail::DerivedQuantitySpec<decltype(pow<2>(isq::length))>);
static_assert(!detail::DerivedQuantitySpec<struct dimensionless>);
static_assert(detail::DerivedQuantitySpec<MP_UNITS_NONCONST_TYPE(speed)>);
static_assert(!detail::DerivedQuantitySpec<struct isq::dim_length>);
static_assert(!detail::DerivedQuantitySpec<int>);

// QuantityKindSpec
static_assert(!detail::QuantityKindSpec<struct isq::length>);
static_assert(!detail::QuantityKindSpec<struct isq::radius>);
static_assert(detail::QuantityKindSpec<kind_of_<struct isq::length>>);
static_assert(!detail::QuantityKindSpec<struct isq::speed>);
static_assert(!detail::QuantityKindSpec<decltype(isq::length / isq::time)>);
static_assert(!detail::QuantityKindSpec<decltype(pow<2>(isq::length))>);
static_assert(!detail::QuantityKindSpec<struct dimensionless>);
static_assert(!detail::QuantityKindSpec<MP_UNITS_NONCONST_TYPE(speed)>);
static_assert(!detail::QuantityKindSpec<struct isq::dim_length>);
static_assert(!detail::QuantityKindSpec<int>);

// Unit
static_assert(Unit<struct si::metre>);
static_assert(Unit<MP_UNITS_NONCONST_TYPE(si::kilogram)>);
static_assert(Unit<si::kilo_<struct si::gram>>);
static_assert(Unit<struct natural::electronvolt>);
static_assert(Unit<decltype(si::metre / si::second)>);
static_assert(Unit<decltype(inverse(si::second))>);
static_assert(Unit<decltype(mag<10> * si::second)>);
static_assert(Unit<decltype(square(si::metre))>);
static_assert(Unit<decltype(pow<2>(si::metre))>);
static_assert(Unit<struct si::standard_gravity>);
static_assert(Unit<scaled_unit<mag<10>, struct si::second>>);
static_assert(Unit<derived_unit<struct si::metre, per<struct si::second>>>);
static_assert(Unit<struct one>);
static_assert(Unit<struct nu::second>);
static_assert(Unit<decltype(si::metre / nu::second)>);
static_assert(!Unit<named_unit<"?", kind_of<isq::length>>>);
static_assert(!Unit<named_unit<"?">>);
static_assert(!Unit<named_unit<"?", si::metre / si::second>>);
static_assert(!Unit<named_unit<"?", si::metre, kind_of<isq::length>>>);
static_assert(!Unit<prefixed_unit<"?", mag<10>, si::second>>);
static_assert(!Unit<struct isq::dim_length>);
static_assert(!Unit<int>);
#if MP_UNITS_HOSTED
static_assert(!Unit<std::chrono::seconds>);
#endif

// PrefixableUnit
static_assert(PrefixableUnit<struct si::metre>);
static_assert(PrefixableUnit<struct natural::electronvolt>);
static_assert(!PrefixableUnit<MP_UNITS_NONCONST_TYPE(si::kilogram)>);
static_assert(!PrefixableUnit<si::kilo_<struct si::gram>>);
static_assert(!PrefixableUnit<decltype(si::metre / si::second)>);
static_assert(!PrefixableUnit<decltype(inverse(si::second))>);
static_assert(!PrefixableUnit<decltype(mag<10> * si::second)>);
static_assert(!PrefixableUnit<decltype(square(si::metre))>);
static_assert(!PrefixableUnit<decltype(pow<2>(si::metre))>);
static_assert(PrefixableUnit<struct si::standard_gravity>);
static_assert(!PrefixableUnit<scaled_unit<mag<10>, struct si::second>>);
static_assert(!PrefixableUnit<derived_unit<struct si::metre, per<struct si::second>>>);
static_assert(!PrefixableUnit<struct one>);
static_assert(!PrefixableUnit<named_unit<"?", kind_of<isq::length>>>);
static_assert(!PrefixableUnit<named_unit<"?">>);
static_assert(!PrefixableUnit<named_unit<"?", si::metre / si::second>>);
static_assert(!PrefixableUnit<named_unit<"?", si::metre, kind_of<isq::length>>>);
static_assert(!PrefixableUnit<prefixed_unit<"?", mag<10>, si::second>>);
static_assert(!PrefixableUnit<struct isq::dim_length>);
static_assert(!PrefixableUnit<int>);
#if MP_UNITS_HOSTED
static_assert(!PrefixableUnit<std::chrono::seconds>);
#endif

// AssociatedUnit
static_assert(AssociatedUnit<struct si::metre>);
static_assert(!AssociatedUnit<struct natural::electronvolt>);
static_assert(AssociatedUnit<MP_UNITS_NONCONST_TYPE(si::kilogram)>);
static_assert(AssociatedUnit<si::kilo_<struct si::gram>>);
static_assert(AssociatedUnit<decltype(si::metre / si::second)>);
static_assert(AssociatedUnit<decltype(inverse(si::second))>);
static_assert(AssociatedUnit<decltype(mag<10> * si::second)>);
static_assert(AssociatedUnit<decltype(square(si::metre))>);
static_assert(AssociatedUnit<decltype(pow<2>(si::metre))>);
static_assert(AssociatedUnit<struct si::standard_gravity>);
static_assert(AssociatedUnit<scaled_unit<mag<10>, struct si::second>>);
static_assert(AssociatedUnit<derived_unit<struct si::metre, per<struct si::second>>>);
static_assert(AssociatedUnit<struct one>);
static_assert(AssociatedUnit<decltype(get_common_unit(si::kilo<si::metre> / si::hour, si::metre / si::second))>);
static_assert(!AssociatedUnit<decltype(si::metre / nu::second)>);
static_assert(!AssociatedUnit<decltype(get_common_unit(si::kilo<si::metre> / nu::hour, si::metre / nu::second))>);
static_assert(!AssociatedUnit<named_unit<"?", kind_of<isq::length>>>);
static_assert(!AssociatedUnit<named_unit<"?">>);
static_assert(!AssociatedUnit<named_unit<"?", si::metre / si::second>>);
static_assert(!AssociatedUnit<named_unit<"?", si::metre, kind_of<isq::length>>>);
static_assert(!AssociatedUnit<prefixed_unit<"?", mag<10>, si::second>>);
static_assert(!AssociatedUnit<struct isq::dim_length>);
static_assert(!AssociatedUnit<int>);
#if MP_UNITS_HOSTED
static_assert(!AssociatedUnit<std::chrono::seconds>);
#endif

// UnitOf
static_assert(UnitOf<struct si::metre, isq::length>);
static_assert(UnitOf<struct si::metre, isq::radius>);
static_assert(UnitOf<MP_UNITS_NONCONST_TYPE(si::kilogram), isq::mass>);
static_assert(UnitOf<struct si::hertz, isq::frequency>);
static_assert(UnitOf<struct si::hertz, inverse(isq::time)>);
static_assert(UnitOf<struct one, dimensionless>);
static_assert(UnitOf<struct percent, dimensionless>);
static_assert(UnitOf<struct si::radian, isq::angular_measure>);
static_assert(UnitOf<struct si::degree, isq::angular_measure>);
static_assert(UnitOf<struct one, isq::angular_measure>);
static_assert(UnitOf<struct percent, isq::angular_measure>);
static_assert(UnitOf<MP_UNITS_NONCONST_TYPE(si::radian / si::second), isq::angular_velocity>);
static_assert(UnitOf<MP_UNITS_NONCONST_TYPE(one / si::second), isq::angular_velocity>);
static_assert(!UnitOf<struct si::radian, dimensionless>);
static_assert(!UnitOf<struct si::metre, isq::time>);
static_assert(!UnitOf<struct natural::electronvolt, isq::energy>);

// Reference
static_assert(Reference<struct si::metre>);
static_assert(Reference<decltype(si::metre / si::second)>);
static_assert(Reference<decltype(isq::length[si::metre])>);
static_assert(Reference<decltype(isq::radius[si::metre])>);
static_assert(Reference<decltype(isq::radius[si::metre] / isq::time[si::second])>);
static_assert(!Reference<struct natural::electronvolt>);
static_assert(!Reference<struct isq::length>);
static_assert(!Reference<kind_of_<struct isq::length>>);
static_assert(!Reference<struct isq::dim_length>);
static_assert(!Reference<int>);

// ReferenceOf
static_assert(ReferenceOf<struct si::metre, isq::length>);
static_assert(ReferenceOf<struct si::metre, isq::radius>);
static_assert(!ReferenceOf<struct si::second, isq::length>);
static_assert(ReferenceOf<decltype(isq::length[si::metre]), isq::length>);
static_assert(!ReferenceOf<decltype(isq::length[si::metre]), isq::radius>);
static_assert(ReferenceOf<decltype(isq::radius[si::metre]), isq::length>);
static_assert(ReferenceOf<decltype(isq::radius[si::metre]), isq::radius>);
static_assert(!ReferenceOf<struct si::second, isq::dim_length>);

static_assert(ReferenceOf<struct one, dimensionless>);
static_assert(ReferenceOf<decltype(dimensionless[one]), dimensionless>);
static_assert(ReferenceOf<decltype(isq::rotation[one]), isq::rotation>);
static_assert(ReferenceOf<decltype(isq::rotation[one]), dimensionless>);
static_assert(ReferenceOf<struct si::radian, isq::angular_measure>);
static_assert(ReferenceOf<struct si::degree, isq::angular_measure>);
static_assert(ReferenceOf<decltype(get_common_unit(si::degree, si::radian)), isq::angular_measure>);
static_assert(!ReferenceOf<struct si::radian, dimensionless>);
static_assert(!ReferenceOf<struct si::degree, dimensionless>);
static_assert(!ReferenceOf<decltype(get_common_unit(si::degree, si::radian)), dimensionless>);
static_assert(ReferenceOf<decltype(isq::angular_measure[si::radian]), isq::angular_measure>);
static_assert(ReferenceOf<decltype(isq::angular_measure[si::degree]), isq::angular_measure>);
static_assert(!ReferenceOf<decltype(isq::angular_measure[si::radian]), dimensionless>);
static_assert(!ReferenceOf<decltype(isq::angular_measure[si::degree]), dimensionless>);
static_assert(ReferenceOf<struct one, isq::rotation>);
static_assert(ReferenceOf<struct one, isq::angular_measure>);
static_assert(!ReferenceOf<decltype(dimensionless[one]), isq::rotation>);
static_assert(!ReferenceOf<decltype(dimensionless[one]), isq::angular_measure>);

// RepresentationOf
static_assert(RepresentationOf<int, quantity_character::real_scalar>);
static_assert(!RepresentationOf<int, quantity_character::complex_scalar>);
static_assert(!RepresentationOf<int, quantity_character::complex_scalar>);
static_assert(RepresentationOf<int, quantity_character::vector>);
static_assert(!RepresentationOf<int, quantity_character::tensor>);

static_assert(RepresentationOf<double, quantity_character::real_scalar>);
static_assert(!RepresentationOf<double, quantity_character::complex_scalar>);
static_assert(!RepresentationOf<double, quantity_character::complex_scalar>);
static_assert(RepresentationOf<double, quantity_character::vector>);
static_assert(!RepresentationOf<double, quantity_character::tensor>);

static_assert(!RepresentationOf<bool, quantity_character::real_scalar>);
static_assert(!RepresentationOf<bool, quantity_character::complex_scalar>);
static_assert(!RepresentationOf<bool, quantity_character::complex_scalar>);
static_assert(!RepresentationOf<bool, quantity_character::vector>);
static_assert(!RepresentationOf<bool, quantity_character::tensor>);

static_assert(!RepresentationOf<std::optional<int>, quantity_character::real_scalar>);

#if MP_UNITS_HOSTED
static_assert(!RepresentationOf<std::complex<double>, quantity_character::real_scalar>);
static_assert(RepresentationOf<std::complex<double>, quantity_character::complex_scalar>);
static_assert(!RepresentationOf<std::complex<double>, quantity_character::vector>);
static_assert(!RepresentationOf<std::complex<double>, quantity_character::tensor>);

static_assert(!RepresentationOf<cartesian_vector<double>, quantity_character::real_scalar>);
static_assert(!RepresentationOf<cartesian_vector<double>, quantity_character::complex_scalar>);
static_assert(RepresentationOf<cartesian_vector<double>, quantity_character::vector>);
static_assert(!RepresentationOf<cartesian_vector<double>, quantity_character::complex_scalar>);
static_assert(!RepresentationOf<cartesian_vector<double>, quantity_character::tensor>);

static_assert(!RepresentationOf<cartesian_vector<std::complex<double>>, quantity_character::real_scalar>);
static_assert(!RepresentationOf<cartesian_vector<std::complex<double>>, quantity_character::complex_scalar>);
static_assert(RepresentationOf<cartesian_vector<std::complex<double>>, quantity_character::vector>);
static_assert(!RepresentationOf<cartesian_vector<std::complex<double>>, quantity_character::complex_scalar>);
static_assert(!RepresentationOf<cartesian_vector<std::complex<double>>, quantity_character::tensor>);

static_assert(!RepresentationOf<std::chrono::seconds, quantity_character::real_scalar>);
static_assert(!RepresentationOf<std::string, quantity_character::real_scalar>);
#endif

// Quantity
static_assert(Quantity<quantity<si::metre>>);
static_assert(Quantity<quantity<isq::length[si::metre]>>);
static_assert(Quantity<quantity<si::metre, int>>);
static_assert(Quantity<quantity<isq::length[si::metre], int>>);
#if MP_UNITS_HOSTED
static_assert(!Quantity<std::chrono::seconds>);
#endif
static_assert(!Quantity<quantity_point<si::metre, my_origin>>);
static_assert(!Quantity<decltype(isq::length[si::metre])>);

// QuantityOf
static_assert(QuantityOf<quantity<si::metre>, isq::length>);
static_assert(QuantityOf<quantity<si::metre>, isq::radius>);
static_assert(!QuantityOf<quantity<si::second>, isq::length>);
static_assert(QuantityOf<quantity<isq::length[si::metre]>, isq::length>);
static_assert(!QuantityOf<quantity<isq::length[si::metre]>, isq::radius>);
static_assert(QuantityOf<quantity<isq::radius[si::metre]>, isq::length>);
static_assert(QuantityOf<quantity<isq::radius[si::metre]>, isq::radius>);
static_assert(!QuantityOf<quantity<si::second>, isq::dim_length>);

static_assert(QuantityOf<quantity<one>, dimensionless>);
static_assert(QuantityOf<quantity<dimensionless[one]>, dimensionless>);
static_assert(QuantityOf<quantity<isq::rotation[one]>, isq::rotation>);
static_assert(QuantityOf<quantity<isq::rotation[one]>, dimensionless>);
static_assert(QuantityOf<quantity<si::radian>, isq::angular_measure>);
static_assert(!QuantityOf<quantity<si::radian>, dimensionless>);
static_assert(QuantityOf<quantity<isq::angular_measure[si::radian]>, isq::angular_measure>);
static_assert(!QuantityOf<quantity<isq::angular_measure[si::radian]>, dimensionless>);
static_assert(QuantityOf<quantity<one>, isq::rotation>);
static_assert(QuantityOf<quantity<one>, isq::angular_measure>);
static_assert(!QuantityOf<quantity<dimensionless[one]>, isq::rotation>);
static_assert(!QuantityOf<quantity<dimensionless[one]>, isq::angular_measure>);

// QuantityLike
#if MP_UNITS_HOSTED
static_assert(QuantityLike<std::chrono::seconds>);
static_assert(QuantityLike<std::chrono::hours>);
#endif
static_assert(!QuantityLike<quantity<isq::time[si::second]>>);
static_assert(!QuantityLike<quantity_point<isq::length[si::metre], my_origin>>);
static_assert(!QuantityLike<int>);

// QuantityPoint
static_assert(QuantityPoint<quantity_point<si::metre, my_origin>>);
static_assert(QuantityPoint<quantity_point<si::metre, my_relative_origin>>);
static_assert(QuantityPoint<quantity_point<isq::length[si::metre], my_origin>>);
static_assert(QuantityPoint<quantity_point<isq::length[si::metre], my_relative_origin, int>>);
static_assert(QuantityPoint<quantity_point<isq::radius[si::metre], my_origin>>);
static_assert(QuantityPoint<quantity_point<isq::radius[si::metre], my_relative_origin>>);
static_assert(!QuantityPoint<decltype(isq::length[si::metre])>);
static_assert(!QuantityPoint<absolute_point_origin<isq::length>>);
static_assert(!QuantityPoint<struct my_origin>);
static_assert(!QuantityPoint<struct my_relative_origin>);
#if MP_UNITS_HOSTED
static_assert(!QuantityPoint<std::chrono::seconds>);
static_assert(!QuantityPoint<std::chrono::time_point<std::chrono::system_clock>>);
#endif
static_assert(!QuantityPoint<int>);

// QuantityPointOf
static_assert(QuantityPointOf<quantity_point<si::metre, my_origin>, isq::length>);
static_assert(QuantityPointOf<quantity_point<si::metre, my_origin>, isq::radius>);
static_assert(QuantityPointOf<quantity_point<isq::length[si::metre], my_origin>, isq::length>);
static_assert(!QuantityPointOf<quantity_point<isq::length[si::metre], my_origin>, isq::radius>);
static_assert(QuantityPointOf<quantity_point<isq::radius[si::metre], my_origin>, isq::length>);
static_assert(QuantityPointOf<quantity_point<isq::radius[si::metre], my_origin>, isq::radius>);
static_assert(QuantityPointOf<quantity_point<isq::radius[si::metre], my_relative_origin>, isq::length>);
static_assert(QuantityPointOf<quantity_point<isq::radius[si::metre], my_relative_origin>, isq::radius>);
static_assert(QuantityPointOf<quantity_point<si::metre, my_origin>, my_origin>);
static_assert(QuantityPointOf<quantity_point<si::metre, my_origin>, my_relative_origin>);
static_assert(QuantityPointOf<quantity_point<si::metre, my_relative_origin>, my_relative_origin>);
static_assert(QuantityPointOf<quantity_point<si::metre, my_relative_origin>, my_origin>);
static_assert(QuantityPointOf<quantity_point<isq::length[si::metre], my_origin>, my_origin>);
static_assert(QuantityPointOf<quantity_point<isq::length[si::metre], my_origin>, my_relative_origin>);
static_assert(QuantityPointOf<quantity_point<isq::length[si::metre], my_relative_origin>, my_relative_origin>);
static_assert(QuantityPointOf<quantity_point<isq::length[si::metre], my_relative_origin>, my_origin>);
static_assert(QuantityPointOf<quantity_point<isq::radius[si::metre], my_origin>, my_origin>);
static_assert(QuantityPointOf<quantity_point<isq::radius[si::metre], my_origin>, my_relative_origin>);
static_assert(QuantityPointOf<quantity_point<isq::radius[si::metre], my_relative_origin>, my_relative_origin>);
static_assert(QuantityPointOf<quantity_point<isq::radius[si::metre], my_relative_origin>, my_origin>);

// PointOrigin
static_assert(PointOrigin<struct my_origin>);
static_assert(PointOrigin<struct my_relative_origin>);
static_assert(!PointOrigin<absolute_point_origin<isq::length>>);
static_assert(!PointOrigin<relative_point_origin<my_origin + 42 * si::metre>>);
static_assert(!PointOrigin<quantity_point<si::metre, my_origin>>);
static_assert(!PointOrigin<quantity_point<isq::length[si::metre], my_origin>>);
static_assert(!PointOrigin<quantity_point<isq::radius[si::metre], my_origin>>);
static_assert(!PointOrigin<decltype(isq::length[si::metre])>);
#if MP_UNITS_HOSTED
static_assert(!PointOrigin<std::chrono::seconds>);
static_assert(!PointOrigin<std::chrono::time_point<std::chrono::system_clock>>);
#endif
static_assert(!PointOrigin<int>);

// PointOriginFor
static_assert(PointOriginFor<struct my_origin, isq::length>);
static_assert(PointOriginFor<struct my_origin, isq::radius>);
static_assert(!PointOriginFor<struct my_origin, isq::time>);
static_assert(PointOriginFor<struct my_relative_origin, isq::length>);
static_assert(PointOriginFor<struct my_relative_origin, isq::radius>);
static_assert(!PointOriginFor<struct my_relative_origin, isq::time>);
static_assert(!PointOriginFor<quantity_point<si::metre, my_origin>, isq::length>);
static_assert(!PointOriginFor<quantity_point<si::metre, my_origin>, isq::radius>);
static_assert(!PointOriginFor<quantity_point<si::metre, my_origin>, isq::time>);
static_assert(!PointOriginFor<quantity_point<isq::length[si::metre], my_origin>, isq::length>);
static_assert(!PointOriginFor<quantity_point<isq::length[si::metre], my_origin>, isq::radius>);
static_assert(!PointOriginFor<quantity_point<isq::length[si::metre], my_origin>, isq::time>);
static_assert(!PointOriginFor<quantity_point<isq::radius[si::metre], my_origin>, isq::length>);
static_assert(!PointOriginFor<quantity_point<isq::radius[si::metre], my_origin>, isq::radius>);
static_assert(!PointOriginFor<quantity_point<isq::radius[si::metre], my_origin>, isq::time>);
static_assert(!PointOriginFor<quantity_point<isq::radius[si::metre], my_relative_origin>, isq::length>);
static_assert(!PointOriginFor<quantity_point<isq::radius[si::metre], my_relative_origin>, isq::radius>);
static_assert(!PointOriginFor<quantity_point<isq::radius[si::metre], my_relative_origin>, isq::time>);
static_assert(!PointOriginFor<decltype(isq::length[si::metre]), isq::length>);
#if MP_UNITS_HOSTED
static_assert(!PointOriginFor<std::chrono::seconds, isq::length>);
static_assert(!PointOriginFor<std::chrono::time_point<std::chrono::system_clock>, isq::length>);
#endif
static_assert(!PointOriginFor<int, isq::length>);

// QuantityPointLike
#if MP_UNITS_HOSTED
static_assert(QuantityPointLike<std::chrono::time_point<std::chrono::system_clock>>);
static_assert(!QuantityPointLike<std::chrono::seconds>);
#endif
static_assert(!QuantityPointLike<quantity<isq::time[si::second]>>);
static_assert(!QuantityPointLike<quantity_point<si::metre, my_origin>>);
static_assert(!QuantityPointLike<int>);

// Quantity Character Concepts

#if MP_UNITS_HOSTED
// TODO provide support for the below when quantity specifications expressions are done
static_assert(detail::Scalar<quantity<one>>);
static_assert(detail::Scalar<quantity<one, int>>);
static_assert(detail::Scalar<quantity<si::metre>>);
static_assert(detail::Scalar<quantity<isq::speed[si::metre / si::second], int>>);
// static_assert(detail::Scalar<quantity<isq::complex_power[si::volt * si::ampere], std::complex<double>>>);

static_assert(!detail::Scalar<quantity<one, cartesian_vector<double>>>);
static_assert(!detail::Scalar<quantity<si::metre, cartesian_vector<double>>>);
static_assert(!detail::Scalar<quantity<isq::velocity[si::metre / si::second], cartesian_vector<double>>>);
static_assert(!detail::Scalar<quantity_point<one>>);
static_assert(!detail::Scalar<quantity_point<si::metre>>);

static_assert(detail::RealScalar<quantity<one>>);
static_assert(detail::RealScalar<quantity<one, int>>);
static_assert(detail::RealScalar<quantity<si::metre>>);
static_assert(detail::RealScalar<quantity<isq::speed[si::metre / si::second], int>>);
// static_assert(!detail::RealScalar<quantity<isq::velocity[si::metre / si::second], int>>);
static_assert(!detail::RealScalar<quantity<isq::complex_power[si::volt * si::ampere], std::complex<double>>>);

static_assert(!detail::ComplexScalar<quantity<one>>);
static_assert(!detail::ComplexScalar<quantity<one, int>>);
static_assert(!detail::ComplexScalar<quantity<si::metre>>);
static_assert(!detail::ComplexScalar<quantity<isq::speed[si::metre / si::second], int>>);
static_assert(!detail::ComplexScalar<quantity<isq::velocity[si::metre / si::second], int>>);
// static_assert(detail::ComplexScalar<quantity<isq::complex_power[si::volt * si::ampere], std::complex<double>>>);

// static_assert(detail::Vector<quantity<one>>);
// static_assert(detail::Vector<quantity<one, int>>);
// static_assert(detail::Vector<quantity<si::metre>>);
static_assert(!detail::Vector<quantity<isq::speed[si::metre / si::second], int>>);
// static_assert(detail::Vector<quantity<isq::velocity[si::metre / si::second], int>>);
static_assert(!detail::Vector<quantity<isq::complex_power[si::volt * si::ampere], std::complex<double>>>);
// static_assert(detail::Vector<quantity<one>, cartesian_vector<double>>);
// static_assert(detail::Vector<quantity<one, cartesian_vector<int>>>);
// static_assert(detail::Vector<quantity<si::metre>, cartesian_vector<double>>);
// static_assert(detail::Vector<quantity<isq::velocity[si::metre / si::second], cartesian_vector<int>>>);

#endif

}  // namespace