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include/okapi/api/units/QLength.hpp

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+/*
+ * This code is a modified version of Benjamin Jurke's work in 2015. You can read his blog post
+ * here:
+ * https://benjaminjurke.com/content/articles/2015/compile-time-numerical-unit-dimension-checking/
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+#pragma once
+
+#include "okapi/api/units/RQuantity.hpp"
+
+namespace okapi {
+QUANTITY_TYPE(0, 1, 0, 0, QLength)
+
+constexpr QLength meter(1.0); // SI base unit
+constexpr QLength decimeter = meter / 10;
+constexpr QLength centimeter = meter / 100;
+constexpr QLength millimeter = meter / 1000;
+constexpr QLength kilometer = 1000 * meter;
+constexpr QLength inch = 2.54 * centimeter;
+constexpr QLength foot = 12 * inch;
+constexpr QLength yard = 3 * foot;
+constexpr QLength mile = 5280 * foot;
+constexpr QLength tile = 24 * inch;
+
+inline namespace literals {
+constexpr QLength operator"" _mm(long double x) {
+  return static_cast<double>(x) * millimeter;
+}
+constexpr QLength operator"" _cm(long double x) {
+  return static_cast<double>(x) * centimeter;
+}
+constexpr QLength operator"" _m(long double x) {
+  return static_cast<double>(x) * meter;
+}
+constexpr QLength operator"" _km(long double x) {
+  return static_cast<double>(x) * kilometer;
+}
+constexpr QLength operator"" _mi(long double x) {
+  return static_cast<double>(x) * mile;
+}
+constexpr QLength operator"" _yd(long double x) {
+  return static_cast<double>(x) * yard;
+}
+constexpr QLength operator"" _ft(long double x) {
+  return static_cast<double>(x) * foot;
+}
+constexpr QLength operator"" _in(long double x) {
+  return static_cast<double>(x) * inch;
+}
+constexpr QLength operator"" _tile(long double x) {
+  return static_cast<double>(x) * tile;
+}
+constexpr QLength operator"" _mm(unsigned long long int x) {
+  return static_cast<double>(x) * millimeter;
+}
+constexpr QLength operator"" _cm(unsigned long long int x) {
+  return static_cast<double>(x) * centimeter;
+}
+constexpr QLength operator"" _m(unsigned long long int x) {
+  return static_cast<double>(x) * meter;
+}
+constexpr QLength operator"" _km(unsigned long long int x) {
+  return static_cast<double>(x) * kilometer;
+}
+constexpr QLength operator"" _mi(unsigned long long int x) {
+  return static_cast<double>(x) * mile;
+}
+constexpr QLength operator"" _yd(unsigned long long int x) {
+  return static_cast<double>(x) * yard;
+}
+constexpr QLength operator"" _ft(unsigned long long int x) {
+  return static_cast<double>(x) * foot;
+}
+constexpr QLength operator"" _in(unsigned long long int x) {
+  return static_cast<double>(x) * inch;
+}
+constexpr QLength operator"" _tile(unsigned long long int x) {
+  return static_cast<double>(x) * tile;
+}
+} // namespace literals
+} // namespace okapi