From e132230651dfec9978059c85408460aca1981663 Mon Sep 17 00:00:00 2001
From: Dennis Luxen <info@project-osrm.org>
Date: Thu, 7 Aug 2014 17:39:53 +0200
Subject: [PATCH] add some minor comments to Range

---
 DataStructures/Range.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/DataStructures/Range.h b/DataStructures/Range.h
index 9a0c52f24..7e2461ce7 100644
--- a/DataStructures/Range.h
+++ b/DataStructures/Range.h
@@ -49,7 +49,7 @@ template <typename Integer> class range
     const range &begin() const { return *this; }
     const range &end() const { return *this; }
     Integer front() const { return iter; }
-    Integer back() const { return last-1; }
+    Integer back() const { return last - 1; }
 
     // Iterator functions
     bool operator!=(const range &) const { return iter < last; }
@@ -57,6 +57,7 @@ template <typename Integer> class range
     Integer operator*() const { return iter; }
 };
 
+// convenience function to construct an integer range with type deduction
 template <typename Integer> range<Integer> irange(Integer first, Integer last)
 {
     return range<Integer>(first, last);