From 0f41dc09550d46d72c94203554c91e581a2928d3 Mon Sep 17 00:00:00 2001
From: Robin Leroy <egg.robin.leroy@gmail.com>
Date: Sat, 23 Mar 2024 22:48:04 +0100
Subject: [PATCH 1/2] std::remove_cvref_t<T>

---
 quantities/concepts.hpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/quantities/concepts.hpp b/quantities/concepts.hpp
index 3fb5de6853..63997f722d 100644
--- a/quantities/concepts.hpp
+++ b/quantities/concepts.hpp
@@ -54,7 +54,8 @@ concept real_affine_space = affine_space<V, double>;
 // the former introduces ambiguities on Sign * Vector.
 template<typename T>
 concept convertible_to_quantity =
-    std::integral<T> || std::floating_point<T> ||
+    std::integral<std::remove_cvref_t<T>> ||
+    std::floating_point<std::remove_cvref_t<T>> ||
     is_instance_of_v<Quantity, std::remove_cvref_t<T>>;
 
 }  // namespace internal

From de29d24a3e845b15b9444c27f56d74ab0294ae93 Mon Sep 17 00:00:00 2001
From: Robin Leroy <egg.robin.leroy@gmail.com>
Date: Sat, 23 Mar 2024 23:34:28 +0100
Subject: [PATCH 2/2] latter

---
 quantities/concepts.hpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/quantities/concepts.hpp b/quantities/concepts.hpp
index 63997f722d..230d231e16 100644
--- a/quantities/concepts.hpp
+++ b/quantities/concepts.hpp
@@ -51,7 +51,7 @@ concept real_affine_space = affine_space<V, double>;
 
 // std::integral || std::floating_point rather than
 // std::convertible_to<double, T> because
-// the former introduces ambiguities on Sign * Vector.
+// the latter introduces ambiguities on Sign * Vector.
 template<typename T>
 concept convertible_to_quantity =
     std::integral<std::remove_cvref_t<T>> ||