From 0265f82998828aec4cc3efb7d2997b84a81c3a5d Mon Sep 17 00:00:00 2001
From: q66 <daniel@octaforge.org>
Date: Sat, 4 Jul 2015 20:43:03 +0100
Subject: [PATCH] use RangeOf

---
 octa/format.hh | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/octa/format.hh b/octa/format.hh
index 92756de..d9db9d6 100644
--- a/octa/format.hh
+++ b/octa/format.hh
@@ -457,10 +457,10 @@ namespace detail {
                                      bool escape, const char *fmt,
                                      const A &...args);
 
-    template<typename T,
-        typename = decltype(octa::iter(octa::declval<T>()))
-    > static octa::True test_fmt_range(int);
-    template<typename> static octa::False test_fmt_range(...);
+    template<typename T, typename = octa::RangeOf<T>>
+    static octa::True test_fmt_range(int);
+    template<typename>
+    static octa::False test_fmt_range(...);
 
     template<typename T>
     using FmtRangeTest = decltype(test_fmt_range<T>(0));