From 5a33c850a3785dacead35bef717a6ac64c8e57c0 Mon Sep 17 00:00:00 2001
From: paulfd <paulfd@outlook.fr>
Date: Thu, 29 Aug 2019 19:15:18 +0200
Subject: [PATCH] Added a length() function to ranges

---
 sources/Range.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sources/Range.h b/sources/Range.h
index d04922a8..60c17ed4 100644
--- a/sources/Range.h
+++ b/sources/Range.h
@@ -35,7 +35,7 @@ public:
     std::pair<Type, Type> getPair() const noexcept { return std::make_pair<Type, Type>(_start, _end); }
     Range(const Range<Type>& range) = default;
     Range(Range<Type>&& range) = default;
-    constexpr Type length() { return _end - _start; }
+    constexpr Type length() const { return _end - _start; }
     void setStart(Type start) noexcept
     {
         _start = start;