From 45f7b4f19f904d8db812bc78e276f2155a4c73e9 Mon Sep 17 00:00:00 2001
From: Mateusz Pusz <mateusz.pusz@gmail.com>
Date: Sat, 17 Nov 2018 12:38:45 +0100
Subject: [PATCH] static_assert replaced with a concept constraint in unit

---
 src/include/units/unit.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/include/units/unit.h b/src/include/units/unit.h
index 51e04992..fdccda64 100644
--- a/src/include/units/unit.h
+++ b/src/include/units/unit.h
@@ -28,11 +28,11 @@
 namespace units {
 
   template<Dimension D, Ratio R>
+    requires (R::num > 0)
   struct unit {
     using base_type = unit<D, R>;
     using dimension = D;
     using ratio = R;
-    static_assert(ratio::num > 0, "ratio must be positive");
   };
 
   // is_unit