From: Vadim Zeitlin <vadim@wxwidgets.org>
Date: Fri, 7 May 1999 18:02:41 +0000 (+0000)
Subject: tree ctrl sorting shouldn't crash when items don't have data
X-Git-Url: https://git.saurik.com/wxWidgets.git/commitdiff_plain/096c9f9b986e3e614175efdbb880ef4f94283c42?ds=inline

tree ctrl sorting shouldn't crash when items don't have data


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@2357 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
---

diff --git a/src/msw/treectrl.cpp b/src/msw/treectrl.cpp
index eb6dfc4977..89f4ad0dbb 100644
--- a/src/msw/treectrl.cpp
+++ b/src/msw/treectrl.cpp
@@ -854,6 +854,9 @@ static int CALLBACK TreeView_CompareCallback(wxTreeItemData *pItem1,
                                              wxTreeItemData *pItem2,
                                              wxTreeCtrl *tree)
 {
+    wxCHECK_MSG( pItem1 && pItem2, 0,
+                 _T("sorting tree without data doesn't make sense") );
+
     return tree->OnCompareItems(pItem1->GetId(), pItem2->GetId());
 }