From 68058cfb251f4ca32299bd0d4e9b65e9931cb023 Mon Sep 17 00:00:00 2001
From: Mateusz Pusz <mateusz.pusz@gmail.com>
Date: Tue, 22 Dec 2020 14:37:03 +0100
Subject: [PATCH] fix: Atomic constraints fixed for `safe_convertible_to_`

---
 src/include/units/quantity.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/include/units/quantity.h b/src/include/units/quantity.h
index 7efdc723..57236ab0 100644
--- a/src/include/units/quantity.h
+++ b/src/include/units/quantity.h
@@ -41,8 +41,8 @@ concept floating_point_ = // exposition only
 
 template<typename From, typename To>
 concept safe_convertible_to_ = // exposition only
-    !(Quantity<From>) &&
-    !(Quantity<To>) &&
+    (!Quantity<From>) &&
+    (!Quantity<To>) &&
     std::convertible_to<From, To> &&
     (floating_point_<To> || (!floating_point_<From>));