From 2f19c89189420057d7dc8066c1abde250dddb2b8 Mon Sep 17 00:00:00 2001
From: Dominik Charousset <dominik.charousset@corelight.com>
Date: Sun, 6 Jun 2021 15:34:24 +0200
Subject: [PATCH] Improve assignment operators for IntrusivePtr

Fixes Coverity finding 1367523 (Missing move assignment operator).
---
 src/IntrusivePtr.h | 19 ++++++++++++++++++-
 1 file changed, 18 insertions(+), 1 deletion(-)

diff --git a/src/IntrusivePtr.h b/src/IntrusivePtr.h
index 7ad37031c8..cb09e9c9f8 100644
--- a/src/IntrusivePtr.h
+++ b/src/IntrusivePtr.h
@@ -137,12 +137,29 @@ public:
 		return std::exchange(ptr_, nullptr);
 		}
 
-	IntrusivePtr& operator=(IntrusivePtr other) noexcept
+	IntrusivePtr& operator=(const IntrusivePtr& other) noexcept
+		{
+		IntrusivePtr tmp{other};
+		swap(tmp);
+		return *this;
+		}
+
+	IntrusivePtr& operator=(IntrusivePtr&& other) noexcept
 		{
 		swap(other);
 		return *this;
 		}
 
+	IntrusivePtr& operator=(std::nullptr_t) noexcept
+		{
+		if ( ptr_ )
+			{
+			Unref(ptr_);
+			ptr_ = nullptr;
+			}
+		return *this;
+		}
+
 	pointer get() const noexcept
 		{
 		return ptr_;