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

1 files changed, 2 insertions, 0 deletions

diff --git a/src/Dictionary.cpp b/src/Dictionary.cpp
index 0a909e5..b354945 100644
--- a/src/Dictionary.cpp
+++ b/src/Dictionary.cpp
@@ -65,6 +65,8 @@ Dictionary::Dictionary(const PList::Dictionary& d) : Structure(d.GetParent())
 
 Dictionary& Dictionary::operator=(const PList::Dictionary& d)
 {
+    if (this == &d) return *this;
+
     for (Dictionary::iterator it = _map.begin(); it != _map.end(); it++)
     {
         plist_free(it->second->GetPlist());