From 87a8f81a8a5d2488e4b114642c984a89fa4c6bd1 Mon Sep 17 00:00:00 2001
From: Joris Vaillant <joris.vaillant@inria.fr>
Date: Thu, 1 Feb 2024 15:25:56 +0100
Subject: [PATCH] core: Move is_class_or_union trait in utils/traits.hpp
---
include/eigenpy/utils/traits.hpp | 30 ++++++++++++++++++++++++++++++
include/eigenpy/variant.hpp | 13 +------------
2 files changed, 31 insertions(+), 12 deletions(-)
create mode 100644 include/eigenpy/utils/traits.hpp
diff --git a/include/eigenpy/utils/traits.hpp b/include/eigenpy/utils/traits.hpp
new file mode 100644
index 00000000..9ce6b4fa
--- /dev/null
+++ b/include/eigenpy/utils/traits.hpp
@@ -0,0 +1,30 @@
+//
+// Copyright (c) 2024 INRIA
+//
+//
+#include <type_traits>
+
+#ifndef __eigenpy_utils_traits_hpp__
+#define __eigenpy_utils_traits_hpp__
+
+namespace eigenpy {
+
+namespace details {
+
+/// Trait to detect if T is a class or an union
+template <typename T>
+struct is_class_or_union
+ : std::integral_constant<bool, std::is_class<T>::value ||
+ std::is_union<T>::value> {};
+
+/// Trait to remove cvref and call is_class_or_union
+template <typename T>
+struct is_class_or_union_remove_cvref
+ : is_class_or_union<typename std::remove_cv<
+ typename std::remove_reference<T>::type>::type> {};
+
+} // namespace details
+
+} // namespace eigenpy
+
+#endif // ifndef __eigenpy_utils_traits_hpp__
diff --git a/include/eigenpy/variant.hpp b/include/eigenpy/variant.hpp
index 4028f856..f989a0f9 100644
--- a/include/eigenpy/variant.hpp
+++ b/include/eigenpy/variant.hpp
@@ -6,6 +6,7 @@
#define __eigenpy_utils_variant_hpp__
#include "eigenpy/fwd.hpp"
+#include "eigenpy/utils/traits.hpp"
#include <boost/python.hpp>
#include <boost/variant.hpp>
@@ -204,18 +205,6 @@ struct VariantValueToObject : VariantVisitorType<PyObject*, Variant> {
using Base::operator();
};
-/// Trait to detect if T is a class or an union
-template <typename T>
-struct is_class_or_union
- : std::integral_constant<bool, std::is_class<T>::value ||
- std::is_union<T>::value> {};
-
-/// Trait to remove cvref and call is_class_or_union
-template <typename T>
-struct is_class_or_union_remove_cvref
- : is_class_or_union<typename std::remove_cv<
- typename std::remove_reference<T>::type>::type> {};
-
/// Convert {boost,std}::variant<class...> alternative reference to a Python
/// object. This converter return the alternative reference. The code that
/// create the reference holder is taken from \see
--
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