From 3f58ea87b7e1da459ea9f574df5453e46583c9c5 Mon Sep 17 00:00:00 2001
From: Jon Pretty <jon.pretty@propensive.com>
Date: Thu, 25 Jan 2024 11:21:33 +0100
Subject: [PATCH] Handle unitless multiplication case

---
 src/core/quantity.scala | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/src/core/quantity.scala b/src/core/quantity.scala
index e5355cf..b1b26ad 100644
--- a/src/core/quantity.scala
+++ b/src/core/quantity.scala
@@ -334,6 +334,15 @@ object QuantitativeMacros:
               ${QuantitativeMacros.multiply[LeftType, RightType]('left, 'right, false)}
                 .asInstanceOf[Quantity[resultType]]
         }
+      
+      case None =>
+        '{
+          new MulOperator[Quantity[LeftType], Quantity[RightType]]:
+            type Result = Double
+            def div(left: Quantity[LeftType], right: Quantity[RightType]): Double =
+              ${QuantitativeMacros.multiply[LeftType, RightType]('left, 'right, false)}.asInstanceOf[Double]
+        }
+
 
   def divTypeclass
       [LeftType <: Measure: Type, RightType <: Measure: Type]