From b2f085b9da6ba4602fe58f101c84eb58d3b15fa9 Mon Sep 17 00:00:00 2001
From: q66 <daniel@octaforge.org>
Date: Sun, 24 May 2015 14:16:20 +0100
Subject: [PATCH] more accurate range category for FilterRange

---
 octa/algorithm.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/octa/algorithm.h b/octa/algorithm.h
index 1b8be20..bab826b 100644
--- a/octa/algorithm.h
+++ b/octa/algorithm.h
@@ -453,8 +453,8 @@ namespace octa {
 
     template<typename T>
     struct FilterRange: InputRange<
-        FilterRange<T>, ForwardRangeTag, RangeValue<T>, RangeReference<T>,
-        RangeSize<T>
+        FilterRange<T>, CommonType<RangeCategory<T>, ForwardRangeTag>,
+        RangeValue<T>, RangeReference<T>, RangeSize<T>
     > {
     private:
         T p_range;