From 0986b42761f501d58b17e3fabe238da636ca2d11 Mon Sep 17 00:00:00 2001
From: Andy Cedilnik <andy.cedilnik@kitware.com>
Date: Thu, 15 Apr 2004 15:46:58 -0400
Subject: [PATCH] BUG: Prevent deleting not existing variables and therefore
 prevent crash. Fixes: Bug #750 - CCMake crashes when deleting all variables

---
 Source/CursesDialog/cmCursesMainForm.cxx | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Source/CursesDialog/cmCursesMainForm.cxx b/Source/CursesDialog/cmCursesMainForm.cxx
index 2a8b29904..ae89e07ad 100644
--- a/Source/CursesDialog/cmCursesMainForm.cxx
+++ b/Source/CursesDialog/cmCursesMainForm.cxx
@@ -1072,7 +1072,7 @@ void cmCursesMainForm::HandleInput()
           }
         }
       // delete cache entry
-      else if ( key == 'd' )
+      else if ( key == 'd' && m_NumberOfVisibleEntries )
         {
         m_OkToGenerate = false;
         FIELD* cur = current_field(m_Form);