added self-assignment check to wxListItem::operator=()

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@56745 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
2008-11-12 14:36:21 +00:00 · 2008-11-12 14:36:21 +00:00 · 17520c84b3
commit 17520c84b3
parent 83666e9909
1 changed files with 14 additions and 11 deletions
--- a/include/wx/listbase.h
+++ b/include/wx/listbase.h
@ -237,6 +237,8 @@ public:
    }

    wxListItem& operator=(const wxListItem& item)
+    {
+        if ( &item != this )
        {
            m_mask = item.m_mask;
            m_itemId = item.m_itemId;
@ -249,6 +251,7 @@ public:
            m_format = item.m_format;
            m_width = item.m_width;
            m_attr = item.m_attr ? new wxListItemAttr(*item.m_attr) : NULL;
+        }

        return *this;
    }