From 53168816525c7d20dba0658f2a860972d31108b4 Mon Sep 17 00:00:00 2001
From: Eduard Valeyev <eduard@valeyev.net>
Date: Mon, 23 Jun 2014 10:37:38 -0400
Subject: [PATCH] Range1d::rank is constexpr.

---
 btas/range.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/btas/range.h b/btas/range.h
index 960b9a8f..9fa01385 100644
--- a/btas/range.h
+++ b/btas/range.h
@@ -137,7 +137,7 @@ namespace btas {
 
         /// \return The rank (number of dimensions) of this range
         /// \throw nothing
-        size_t rank() const {
+        constexpr size_t rank() const {
           return 1ul;
         }