X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/2b5f62a0b2db198609b45dec622a018dae37008e..dd91da4ed1e9d2ba5d3bc2fae64a8e4ea86b5d41:/src/univ/listbox.cpp

diff --git a/src/univ/listbox.cpp b/src/univ/listbox.cpp
index f0f783992a..7ae71b51fe 100644
--- a/src/univ/listbox.cpp
+++ b/src/univ/listbox.cpp
@@ -127,6 +127,8 @@ bool wxListBox::Create(wxWindow *parent,
 
 wxListBox::~wxListBox()
 {
+    // call this just to free the client data -- and avoid leaking memory
+    DoClear();
 }
 
 // ----------------------------------------------------------------------------
@@ -272,7 +274,8 @@ void wxListBox::Clear()
 
 void wxListBox::Delete(int n)
 {
-    wxCHECK_RET( n < GetCount(), _T("invalid index in wxListBox::Delete") );
+    wxCHECK_RET( n >= 0 && n < GetCount(),
+                 _T("invalid index in wxListBox::Delete") );
 
     // do it before removing the index as otherwise the last item will not be
     // refreshed (as GetCount() will be decremented)