From 4e8ff433c6114bf3165d79af7270f2f7e473500b Mon Sep 17 00:00:00 2001
From: John Wellbelove <github@wellbelove.co.uk>
Date: Tue, 27 Apr 2021 18:17:35 +0100
Subject: [PATCH] Fixed histogram end() and cend() values.

---
 include/etl/histogram.h | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/include/etl/histogram.h b/include/etl/histogram.h
index 83167612..f2d0eefa 100644
--- a/include/etl/histogram.h
+++ b/include/etl/histogram.h
@@ -21,6 +21,8 @@ namespace etl
     {
     public:
 
+      ETL_STATIC_ASSERT(etl::is_integral<TCount>::value, "Only integral count allowed"); 
+
       static ETL_CONSTANT size_t Max_Size = Max_Size_;
 
       typedef typename etl::array<TCount, Max_Size>::const_iterator const_iterator;
@@ -46,7 +48,7 @@ namespace etl
       //*********************************
       const_iterator end() const
       {
-        return accumulator.begin();
+        return accumulator.end();
       }
 
       //*********************************
@@ -54,7 +56,7 @@ namespace etl
       //*********************************
       const_iterator cend() const
       {
-        return accumulator.cbegin();
+        return accumulator.cend();
       }
 
       //*********************************