From b98289eea6d44cb26ef778b7dae40ba34bd03404 Mon Sep 17 00:00:00 2001
From: Maximilian Reininghaus <maximilian.reininghaus@kit.edu>
Date: Tue, 9 Apr 2019 13:16:04 -0300
Subject: [PATCH] is_quantity<> utility
---
ThirdParty/phys/units/quantity.hpp | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/ThirdParty/phys/units/quantity.hpp b/ThirdParty/phys/units/quantity.hpp
index 06fbb4b2c..970773d59 100644
--- a/ThirdParty/phys/units/quantity.hpp
+++ b/ThirdParty/phys/units/quantity.hpp
@@ -473,6 +473,16 @@ namespace phys {
friend constexpr bool operator>=(quantity<D, X> const& x, quantity<D, Y> const& y);
};
+ // helper to check whether some type is a quantity
+ template <typename TNonQuantityType>
+ struct is_quantity : std::false_type {};
+
+ template <typename Dims, typename T>
+ struct is_quantity<quantity<Dims, T>> : std::true_type {};
+
+ template <typename T>
+ constexpr bool is_quantity_v = is_quantity<T>::value;
+
// Give names to the seven fundamental dimensions of physical reality.
typedef dimensions<1, 0, 0, 0, 0, 0, 0, 0> length_d;
--
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