check for self assignment in operator=

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@56794 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
2008-11-16 18:03:08 +00:00
parent 5c69ef61f3
commit a09307abba
5 changed files with 22 additions and 12 deletions
--- a/include/wx/vector.h
+++ b/include/wx/vector.h
@@ -230,8 +230,11 @@ public:

    wxVector& operator=(const wxVector& vb)
    {
-        clear();
-        Copy(vb);
+        if (this != &vb)
+        {
+            clear();
+            Copy(vb);
+        }
        return *this;
    }