Files
mp-units/src/include/units/si/length.h
T

104 lines
4.7 KiB
C++

// 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.
#pragma once
#include "base_dimensions.h"
#include "../quantity.h"
namespace units {
// dimension
struct dimension_length : make_dimension_t<exp<base_dim_length, 1>> {};
template<> struct upcasting_traits<typename dimension_length::base_type> : std::type_identity<dimension_length> {};
// SI units
struct millimeter : unit<dimension_length, std::milli> {};
template<> struct upcasting_traits<typename millimeter::base_type> : std::type_identity<millimeter> {};
struct centimeter : unit<dimension_length, std::ratio<1, 100>> {};
template<> struct upcasting_traits<typename centimeter::base_type> : std::type_identity<centimeter> {};
struct meter : unit<dimension_length, std::ratio<1>> {};
template<> struct upcasting_traits<typename meter::base_type> : std::type_identity<meter> {};
struct kilometer : unit<dimension_length, std::kilo> {};
template<> struct upcasting_traits<typename kilometer::base_type> : std::type_identity<kilometer> {};
// US customary units
struct yard : unit<dimension_length, std::ratio<9'144, 10'000>> {};
template<> struct upcasting_traits<typename yard::base_type> : std::type_identity<yard> {};
struct foot : unit<dimension_length, std::ratio_multiply<std::ratio<1, 3>, yard::ratio>> {};
template<> struct upcasting_traits<typename foot::base_type> : std::type_identity<foot> {};
struct inch : unit<dimension_length, std::ratio_multiply<std::ratio<1, 12>, foot::ratio>> {};
template<> struct upcasting_traits<typename inch::base_type> : std::type_identity<inch> {};
struct mile : unit<dimension_length, std::ratio_multiply<std::ratio<1'760>, yard::ratio>> {};
template<> struct upcasting_traits<typename mile::base_type> : std::type_identity<mile> {};
// length
template<Unit U = meter, Number Rep = double>
using length = quantity<dimension_length, U, Rep>;
template<typename T>
concept bool Length = Quantity<T> && std::experimental::ranges::Same<typename T::dimension, dimension_length>;
namespace literals {
// mm
constexpr auto operator""_mm(unsigned long long l) { return length<millimeter, std::int64_t>(l); }
constexpr auto operator""_mm(long double l) { return length<millimeter, long double>(l); }
// cm
constexpr auto operator""_cm(unsigned long long l) { return length<centimeter, std::int64_t>(l); }
constexpr auto operator""_cm(long double l) { return length<centimeter, long double>(l); }
// m
constexpr auto operator""_m(unsigned long long l) { return length<meter, std::int64_t>(l); }
constexpr auto operator""_m(long double l) { return length<meter, long double>(l); }
// km
constexpr auto operator""_km(unsigned long long l) { return length<kilometer, std::int64_t>(l); }
constexpr auto operator""_km(long double l) { return length<kilometer, long double>(l); }
// yd
constexpr auto operator""_yd(unsigned long long l) { return length<yard, std::int64_t>(l); }
constexpr auto operator""_yd(long double l) { return length<yard, long double>(l); }
// ft
constexpr auto operator""_ft(unsigned long long l) { return length<foot, std::int64_t>(l); }
constexpr auto operator""_ft(long double l) { return length<foot, long double>(l); }
// in
constexpr auto operator""_in(unsigned long long l) { return length<inch, std::int64_t>(l); }
constexpr auto operator""_in(long double l) { return length<inch, long double>(l); }
// mi
constexpr auto operator""_mi(unsigned long long l) { return length<mile, std::int64_t>(l); }
constexpr auto operator""_mi(long double l) { return length<mile, long double>(l); }
} // namespace literals
} // namespace units