From 4b145ea4cf2730bb27474d287334e0fed288a680 Mon Sep 17 00:00:00 2001
From: Mateusz Pusz <mateusz.pusz@gmail.com>
Date: Fri, 27 Sep 2019 23:45:45 +0200
Subject: [PATCH] `Den != 0` added as a constrain on ratio type

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

diff --git a/src/include/units/ratio.h b/src/include/units/ratio.h
index ef7c2d76..92a76196 100644
--- a/src/include/units/ratio.h
+++ b/src/include/units/ratio.h
@@ -37,8 +37,8 @@ namespace units {
   }
 
   template<std::intmax_t Num, std::intmax_t Den = 1>
+      requires (Den != 0)
   struct ratio {
-    static_assert(Den != 0, "zero denominator");
     static_assert(-INTMAX_MAX <= Num, "numerator too negative");
     static_assert(-INTMAX_MAX <= Den, "denominator too negative");