From 8dfc7503f2240356e47efff39b2fe6f2fd9d6457 Mon Sep 17 00:00:00 2001
From: vsonnier <vsonnier@users.noreply.github.com>
Date: Sun, 3 Mar 2019 13:22:29 +0100
Subject: [PATCH] Fix wrong condition in DataTree

---
 src/util/DataTree.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/util/DataTree.h b/src/util/DataTree.h
index fe76138..10d7d21 100755
--- a/src/util/DataTree.h
+++ b/src/util/DataTree.h
@@ -303,7 +303,7 @@ public:
     template<typename T, typename Dummy = int >
     void get(T& scalar_out) {
 
-        if (getDataSize() < 0) {
+        if (getDataSize() == 0) {
             throw DataException("Cannot get() the scalar, DataElement is empty !");
         }