From 791cec3fadcd1977e3edca66c61d8fc9fab85f18 Mon Sep 17 00:00:00 2001
From: Mateusz Pusz <mateusz.pusz@gmail.com>
Date: Wed, 30 Nov 2022 18:00:34 +0100
Subject: [PATCH] docs: missing comment added

---
 src/core/include/units/concepts.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/core/include/units/concepts.h b/src/core/include/units/concepts.h
index 5a909819..49d963e1 100644
--- a/src/core/include/units/concepts.h
+++ b/src/core/include/units/concepts.h
@@ -76,6 +76,7 @@ template<typename T>
 concept castable_number_ =  // exposition only
   common_type_with_<T, std::intmax_t> && scalable_number_<std::common_type_t<T, std::intmax_t>>;
 
+// TODO Fix it according to quantity_cast implementation
 template<typename T>
 concept scalable_ =  // exposition only
   castable_number_<T> || (requires { typename T::value_type; } && castable_number_<typename T::value_type> &&