cpp: Add `this` comparison to `operator=` copy assign

1 files changed, 2 insertions, 0 deletions

diff --git a/src/Integer.cpp b/src/Integer.cpp
index 653455d..26e7ccf 100644
--- a/src/Integer.cpp
+++ b/src/Integer.cpp
@@ -41,6 +41,8 @@ Integer::Integer(const PList::Integer& i) : Node(PLIST_INT)
 
 Integer& Integer::operator=(const PList::Integer& i)
 {
+    if (this == &i) return *this;
+
     plist_free(_node);
     _node = plist_copy(i.GetPlist());
     return *this;