From cc1a61db752ddc1d5033e9986a7d31971347e87a Mon Sep 17 00:00:00 2001
From: Roland Denis <denis.roland@free.fr>
Date: Tue, 10 Mar 2015 10:30:12 +0100
Subject: [PATCH] Fixing a bug on iterators over labels.

begin() iterator was equal to end() when the first bit was set.
---
 src/DGtal/base/Labels.ih | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/DGtal/base/Labels.ih b/src/DGtal/base/Labels.ih
index 8f756b2810..5825b33565 100644
--- a/src/DGtal/base/Labels.ih
+++ b/src/DGtal/base/Labels.ih
@@ -72,7 +72,7 @@ ConstEnumerator( const Word* address, SizeType firstWord )
   else
     {
       myWord = 0;
-      myLabel = 0;
+      myLabel = -1;
     }
 }
 //-----------------------------------------------------------------------------
@@ -132,7 +132,7 @@ operator++()
       if ( myWordLabel == ( __DGTAL_LABELS_NBWORDS
                             * __DGTAL_WORD_NBDIGITS ) )
         {
-          myLabel = 0;
+          myLabel = -1;
           return *this;
         }
       myWord = *myWordAddress++;