fix segfault opportunity in menu

1 files changed, 5 insertions, 0 deletions

diff --git a/src/FbTk/Menu.cc b/src/FbTk/Menu.cc
index e0e3e7f..e05f531 100644
--- a/src/FbTk/Menu.cc
+++ b/src/FbTk/Menu.cc
@@ -273,6 +273,9 @@ void Menu::lower() {
 }
 
 void Menu::nextItem() {
+    if (menuitems.empty())
+        return;
+
     int old_which_press = m_which_press;
     m_active_index = -1;
     if (validIndex(old_which_press) && 
@@ -308,6 +311,8 @@ void Menu::nextItem() {
 }
 
 void Menu::prevItem() {
+    if (menuitems.empty())
+        return;
 
     int old_which_press = m_which_press;
     m_active_index = -1;