From 4cdfb37e96d0ab29fd0535380c28b318943bb394 Mon Sep 17 00:00:00 2001
From: ig <ig ig@devnullmail.com>
Date: Tue, 20 Jun 2023 10:13:28 +0200
Subject: [PATCH] Add +- operators to AcPower

---
 csharp/Lib/Units/Composite/AcPhase.cs |  3 +++
 csharp/Lib/Units/Composite/AcPower.cs | 10 ++++++++++
 csharp/Lib/Units/Power/ActivePower.cs |  3 +++
 3 files changed, 16 insertions(+)

diff --git a/csharp/Lib/Units/Composite/AcPhase.cs b/csharp/Lib/Units/Composite/AcPhase.cs
index a950ed246..165b9a0fa 100644
--- a/csharp/Lib/Units/Composite/AcPhase.cs
+++ b/csharp/Lib/Units/Composite/AcPhase.cs
@@ -42,4 +42,7 @@ public sealed class AcPhase
     };
 
     public static AcPhase Null { get; } = FromVoltageCurrentPhi(0, 0, 0);
+    
+    
+  
 }
\ No newline at end of file
diff --git a/csharp/Lib/Units/Composite/AcPower.cs b/csharp/Lib/Units/Composite/AcPower.cs
index aacea2ced..b3a518e52 100644
--- a/csharp/Lib/Units/Composite/AcPower.cs
+++ b/csharp/Lib/Units/Composite/AcPower.cs
@@ -86,5 +86,15 @@ public sealed class AcPower
     
     public static AcPower Null { get; } = FromVoltageCurrentPhi(0, 0, 0);
 
+    public static AcPower operator +(AcPower left, AcPower right) => FromActiveReactive
+    (
+        left.Active + right.Active,
+        left.Reactive + right.Reactive
+    );
+
+    public static AcPower operator -(AcPower p) => FromActiveReactive(-p.Active, p.Reactive);
+    
+    
+    
     public override String ToString() => Active.ToString(); // TODO: show all
 }
\ No newline at end of file
diff --git a/csharp/Lib/Units/Power/ActivePower.cs b/csharp/Lib/Units/Power/ActivePower.cs
index ab9d638c4..92a82b431 100644
--- a/csharp/Lib/Units/Power/ActivePower.cs
+++ b/csharp/Lib/Units/Power/ActivePower.cs
@@ -11,5 +11,8 @@ public sealed class ActivePower : AcPower
      
     public static implicit operator ActivePower(Double d) => new ActivePower(d);
     public static implicit operator Double(ActivePower d) => d.Value;
+    
+    
+    public static ActivePower operator -(ActivePower d) => -d.Value;
 }