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include/okapi/api/units/QSpeed.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/QLength.hpp"
+#include "okapi/api/units/QTime.hpp"
+#include "okapi/api/units/RQuantity.hpp"
+
+namespace okapi {
+QUANTITY_TYPE(0, 1, -1, 0, QSpeed)
+
+constexpr QSpeed mps = meter / second;
+constexpr QSpeed miph = mile / hour;
+constexpr QSpeed kmph = kilometer / hour;
+
+inline namespace literals {
+constexpr QSpeed operator"" _mps(long double x) {
+  return static_cast<double>(x) * mps;
+}
+constexpr QSpeed operator"" _miph(long double x) {
+  return static_cast<double>(x) * mile / hour;
+}
+constexpr QSpeed operator"" _kmph(long double x) {
+  return static_cast<double>(x) * kilometer / hour;
+}
+constexpr QSpeed operator"" _mps(unsigned long long int x) {
+  return static_cast<double>(x) * mps;
+}
+constexpr QSpeed operator"" _miph(unsigned long long int x) {
+  return static_cast<double>(x) * mile / hour;
+}
+constexpr QSpeed operator"" _kmph(unsigned long long int x) {
+  return static_cast<double>(x) * kilometer / hour;
+}
+} // namespace literals
+} // namespace okapi