From 8c4010b4be113c74e177a0cbfae4f1122a56c1ae Mon Sep 17 00:00:00 2001
From: rulrich <ralf.m.ulrich@kit.edu>
Date: Fri, 13 Nov 2020 12:27:38 +0100
Subject: [PATCH] cast dimensionless_d to integral type
---
ThirdParty/phys/units/quantity.hpp | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/ThirdParty/phys/units/quantity.hpp b/ThirdParty/phys/units/quantity.hpp
index 970773d59..0751923b0 100644
--- a/ThirdParty/phys/units/quantity.hpp
+++ b/ThirdParty/phys/units/quantity.hpp
@@ -31,6 +31,7 @@
#include <cmath>
#include <cstdlib>
#include <utility> // std::declval
+#include <type_traits> // std::enable_if
/// namespace phys.
@@ -358,6 +359,10 @@ namespace phys {
static constexpr quantity zero() { return quantity{value_type(0.0)}; }
// static constexpr quantity zero = quantity{ value_type( 0.0 ) };
+ // RU, added conversion to T (often: double) for dimensionless_d
+ template <typename DIM=Dims, std::enable_if_t<std::is_same_v<DIM, dimensionless_d>, int> = 0>
+ operator T() { return m_value; }
+
private:
/**
* private initializing constructor.
--
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