From 8a8bdb2cd777a8fbefcc711132ee2ba4041578ac Mon Sep 17 00:00:00 2001
From: Tom <tomut@yahoo.com>
Date: Mon, 8 Mar 2021 13:07:58 -0700
Subject: [PATCH] AK: Add decrement operator to Checked

---
 AK/Checked.h | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/AK/Checked.h b/AK/Checked.h
index 3ed63f0132..eaeb1bc3f2 100644
--- a/AK/Checked.h
+++ b/AK/Checked.h
@@ -251,6 +251,19 @@ public:
         return old;
     }
 
+    constexpr Checked& operator--()
+    {
+        sub(1);
+        return *this;
+    }
+
+    constexpr Checked operator--(int)
+    {
+        Checked old { *this };
+        sub(1);
+        return old;
+    }
+
     template<typename U, typename V>
     static constexpr bool addition_would_overflow(U u, V v)
     {