forked from mpusz/mp-units
9527b39005
We had some fun exploring the STD UDLs for potential collisions, we have learnt our lesson and know how to proceed. Now is high time to start behaving and obeying C++ rules.
255 lines
12 KiB
C++
255 lines
12 KiB
C++
// The MIT License (MIT)
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//
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// Copyright (c) 2018 Mateusz Pusz
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in all
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// copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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// SOFTWARE.
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#include "units/math.h"
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#include "units/physical/si/area.h"
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#include "units/physical/si/frequency.h"
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#include "units/physical/si/speed.h"
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#include "units/physical/si/volume.h"
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#include "units/physical/us/length.h"
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#include "units/quantity_point.h"
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#include <chrono>
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#include <utility>
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namespace {
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using namespace units;
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using namespace units::physical::si;
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// class invariants
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template<typename DimLength>
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concept invalid_types = requires
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{
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!requires { typename quantity_point<DimLength, second, int>; }; // unit of a different dimension
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!requires { typename quantity_point<DimLength, metre, quantity<DimLength, metre, int>>; }; // quantity used as Rep
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// quantity point used as Rep
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!requires { typename quantity_point<DimLength, metre, quantity_point<DimLength, metre, int>>; };
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!requires { typename quantity<metre, DimLength, double>; }; // reordered arguments
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};
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static_assert(invalid_types<dim_length>);
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// member types
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static_assert(is_same_v<quantity_point<dim_length, metre, int>::rep, int>);
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static_assert(is_same_v<quantity_point<dim_length, metre, double>::rep, double>);
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static_assert(is_same_v<quantity_point<dim_length, metre, int>::unit, metre>);
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static_assert(is_same_v<quantity_point<dim_length, kilometre, int>::unit, kilometre>);
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// constructors
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static_assert(quantity_point<dim_length, metre, int>().relative() == 0_q_m);
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constexpr quantity_point<dim_length, metre, int> km{1000_q_m};
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static_assert(km.relative() == 1000_q_m);
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static_assert(quantity_point<dim_length, metre, int>(km).relative() == km.relative());
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static_assert(quantity_point<dim_length, metre, int>(1_q_m).relative() == 1_q_m);
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static_assert(!std::is_constructible_v<quantity_point<dim_length, metre, int>, double>); // truncating conversion
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static_assert(quantity_point<dim_length, metre, double>(1.0_q_m).relative() == 1.0_q_m);
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static_assert(quantity_point<dim_length, metre, double>(1_q_m).relative() == 1_q_m);
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static_assert(quantity_point<dim_length, metre, long double>(3.14_q_m).relative() == 3.14_q_m);
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static_assert(quantity_point<dim_length, metre, int>(km).relative() == 1000_q_m);
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static_assert(!std::is_constructible_v<quantity_point<dim_length, metre, int>,
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quantity_point<dim_length, metre, double>>); // truncating conversion
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static_assert(quantity_point<dim_length, metre, double>(quantity_point(1000.0_q_m)).relative() == 1000.0_q_m);
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static_assert(quantity_point<dim_length, metre, double>(km).relative() == 1000.0_q_m);
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static_assert(quantity_point<dim_length, metre, int>(quantity_point(1_q_km)).relative() == 1000_q_m);
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static_assert(!std::is_constructible_v<quantity_point<dim_length, metre, int>,
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quantity_point<dim_time, second, int>>); // different dimensions
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static_assert(!std::is_constructible_v<quantity_point<dim_length, kilometre, int>,
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quantity_point<dim_length, metre, int>>); // truncating conversion
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// assignment operator
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static_assert([]() { quantity_point<dim_length, metre, int> l1(1_q_m), l2{}; return l2 = l1; }().relative() == 1_q_m);
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// static member functions
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static_assert(quantity_point<dim_length, metre, int>::min().relative().count() == std::numeric_limits<int>::lowest());
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static_assert(quantity_point<dim_length, metre, int>::max().relative().count() == std::numeric_limits<int>::max());
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static_assert(quantity_point<dim_length, metre, double>::min().relative().count() ==
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std::numeric_limits<double>::lowest());
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static_assert(quantity_point<dim_length, metre, double>::max().relative().count() ==
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std::numeric_limits<double>::max());
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// unary member operators
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static_assert([](auto v) {
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auto vv = v++;
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return std::pair(v, vv);
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}(km) == std::pair(quantity_point<dim_length, metre, int>(1001_q_m), quantity_point<dim_length, metre, int>(1000_q_m)));
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static_assert([](auto v) {
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auto vv = ++v;
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return std::pair(v, vv);
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}(km) == std::pair(quantity_point<dim_length, metre, int>(1001_q_m), quantity_point<dim_length, metre, int>(1001_q_m)));
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static_assert([](auto v) {
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auto vv = v--;
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return std::pair(v, vv);
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}(km) == std::pair(quantity_point<dim_length, metre, int>(999_q_m), quantity_point<dim_length, metre, int>(1000_q_m)));
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static_assert([](auto v) {
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auto vv = --v;
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return std::pair(v, vv);
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}(km) == std::pair(quantity_point<dim_length, metre, int>(999_q_m), quantity_point<dim_length, metre, int>(999_q_m)));
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// compound assignment
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static_assert((quantity_point(1_q_m) += 1_q_m).relative().count() == 2);
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static_assert((quantity_point(2_q_m) -= 1_q_m).relative().count() == 1);
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// non-member arithmetic operators
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static_assert(is_same_v<decltype(quantity_point<dim_length, metre, int>() + length<metre, double>()),
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quantity_point<dim_length, metre, double>>);
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static_assert(is_same_v<decltype(length<metre, int>() + quantity_point<dim_length, metre, double>()),
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quantity_point<dim_length, metre, double>>);
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static_assert(is_same_v<decltype(quantity_point<dim_length, kilometre, int>() + length<metre, double>()),
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quantity_point<dim_length, metre, double>>);
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static_assert(is_same_v<decltype(length<kilometre, int>() + quantity_point<dim_length, metre, double>()),
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quantity_point<dim_length, metre, double>>);
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static_assert(is_same_v<decltype(quantity_point<dim_length, metre, double>() - length<metre, int>()),
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quantity_point<dim_length, metre, double>>);
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static_assert(is_same_v<decltype(quantity_point<dim_length, kilometre, double>() - length<metre, int>()),
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quantity_point<dim_length, metre, double>>);
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static_assert(
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is_same_v<decltype(quantity_point<dim_length, metre, double>() - quantity_point<dim_length, metre, int>()),
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length<metre, double>>);
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static_assert(
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is_same_v<decltype(quantity_point<dim_length, kilometre, double>() - quantity_point<dim_length, metre, int>()),
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length<metre, double>>);
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static_assert((1_q_m + km).relative().count() == 1001);
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static_assert((quantity_point(1_q_m) + 1_q_km).relative().count() == 1001);
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static_assert((km - 1_q_m).relative().count() == 999);
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static_assert((quantity_point(1_q_km) - quantity_point(1_q_m)).count() == 999);
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// comparators
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static_assert(quantity_point(2_q_m) + 1_q_m == quantity_point(3_q_m));
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static_assert(!(2_q_m + quantity_point(2_q_m) == quantity_point(3_q_m)));
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static_assert(quantity_point(2_q_m) + 2_q_m != quantity_point(3_q_m));
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static_assert(!(2_q_m + quantity_point(2_q_m) != quantity_point(4_q_m)));
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static_assert(quantity_point(2_q_m) > quantity_point(1_q_m));
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static_assert(!(quantity_point(1_q_m) > quantity_point(1_q_m)));
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static_assert(quantity_point(1_q_m) < quantity_point(2_q_m));
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static_assert(!(quantity_point(2_q_m) < quantity_point(2_q_m)));
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static_assert(quantity_point(2_q_m) >= quantity_point(1_q_m));
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static_assert(quantity_point(2_q_m) >= quantity_point(2_q_m));
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static_assert(!(quantity_point(2_q_m) >= quantity_point(3_q_m)));
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static_assert(quantity_point(1_q_m) <= quantity_point(2_q_m));
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static_assert(quantity_point(2_q_m) <= quantity_point(2_q_m));
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static_assert(!(quantity_point(3_q_m) <= quantity_point(2_q_m)));
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static_assert(quantity_point(3_q_m) == quantity_point(3.0_q_m));
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static_assert(quantity_point(3_q_m) != quantity_point(3.14_q_m));
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static_assert(quantity_point(2_q_m) > quantity_point(1.0_q_m));
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static_assert(quantity_point(1.0_q_m) < quantity_point(2_q_m));
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static_assert(quantity_point(2.0_q_m) >= quantity_point(1_q_m));
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static_assert(quantity_point(1_q_m) <= quantity_point(2.0_q_m));
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static_assert(quantity_point(1000_q_m) == quantity_point(1_q_km));
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static_assert(quantity_point(1001_q_m) != quantity_point(1_q_km));
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static_assert(quantity_point(1001_q_m) > quantity_point(1_q_km));
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static_assert(quantity_point(999_q_m) < quantity_point(1_q_km));
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static_assert(quantity_point(1000_q_m) >= quantity_point(1_q_km));
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static_assert(quantity_point(1000_q_m) <= quantity_point(1_q_km));
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// alias units
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static_assert(quantity_point(2_q_l) + 2_q_ml == quantity_point(2002_q_ml));
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static_assert(2_q_l + quantity_point(2_q_ml) == quantity_point(2002_q_cm3));
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static_assert(quantity_point(2_q_l) + 2_q_cm3 == quantity_point(2002_q_ml));
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static_assert(2_q_dm3 + quantity_point(2_q_cm3) == quantity_point(2002_q_ml));
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// is_quantity_point
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static_assert(QuantityPoint<quantity_point<dim_length, millimetre, int>>);
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// common_quantity_point
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static_assert(is_same_v<
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common_quantity_point<quantity_point<dim_length, metre, int>, quantity_point<dim_length, kilometre, int>>,
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quantity_point<dim_length, metre, int>>);
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static_assert(is_same_v<common_quantity_point<quantity_point<dim_length, kilometre, long long>,
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quantity_point<dim_length, metre, int>>,
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quantity_point<dim_length, metre, long long>>);
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static_assert(is_same_v<common_quantity_point<quantity_point<dim_length, kilometre, long long>,
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quantity_point<dim_length, millimetre, double>>,
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quantity_point<dim_length, millimetre, double>>);
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// common_type
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using namespace units::physical::us::literals;
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static_assert(std::equality_comparable<decltype(quantity_point(1_q_m))>);
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static_assert(std::equality_comparable_with<decltype(quantity_point(1_q_m)), decltype(quantity_point(1_q_km))>);
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static_assert(quantity_point(0_q_m) == quantity_point(0_q_ft_us));
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static_assert(std::equality_comparable_with<decltype(quantity_point(1_q_m)), decltype(quantity_point(1_q_ft_us))>);
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// quantity_cast
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static_assert(
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is_same_v<decltype(quantity_point_cast<scaled_unit<ratio(1), metre>>(quantity_point(2_q_km)))::unit, metre>);
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static_assert(quantity_point_cast<quantity_point<dim_length, metre, int>>(quantity_point(2_q_km)).relative().count() ==
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2000);
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static_assert(
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quantity_point_cast<quantity_point<dim_length, kilometre, int>>(quantity_point(2000_q_m)).relative().count() == 2);
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static_assert(quantity_point_cast<quantity_point<dim_length, metre, int>>(quantity_point(1.23_q_m)).relative().count() ==
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1);
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static_assert(quantity_point_cast<length<metre, int>>(quantity_point(2_q_km)).relative().count() == 2000);
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static_assert(quantity_point_cast<length<kilometre, int>>(quantity_point(2000_q_m)).relative().count() == 2);
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static_assert(quantity_point_cast<length<metre, int>>(quantity_point(1.23_q_m)).relative().count() == 1);
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static_assert(quantity_point_cast<metre>(quantity_point(2_q_km)).relative().count() == 2000);
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static_assert(quantity_point_cast<kilometre>(quantity_point(2000_q_m)).relative().count() == 2);
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static_assert(quantity_point_cast<int>(quantity_point(1.23_q_m)).relative().count() == 1);
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// time
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static_assert(quantity_point{1_q_h} == quantity_point{3600_q_s});
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template<typename Metre>
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concept no_crossdimensional_equality = !requires
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{
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quantity_point(1_q_s) == quantity_point(length<Metre, int>(1));
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};
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static_assert(no_crossdimensional_equality<metre>);
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// length
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static_assert(quantity_point(1_q_km) != quantity_point(1_q_m));
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static_assert(quantity_point(1_q_km) == quantity_point(1000_q_m));
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static_assert(quantity_point(1_q_km) + 1_q_m == quantity_point(1001_q_m));
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static_assert(1_q_km + quantity_point(1_q_m) == quantity_point(1001_q_m));
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template<class T>
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concept dimensional_analysis = requires(T t)
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{
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pow<2>(t);
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};
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static_assert(!dimensional_analysis<quantity_point<dim_length, metre, int>>);
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} // namespace
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