From f45f70af097bf54897b6cb0ced2699ee38515276 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Lars=20Gullik=20Bj=C3=B8nnes?= <lbjonnes@cisco.com>
Date: Thu, 15 Feb 2018 17:34:38 +0100
Subject: [PATCH] Use trailing return type instead of deduction

C++11 does not support deduction of return type.
---
 include/fmt/format.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/fmt/format.h b/include/fmt/format.h
index a0572fc5..2e725364 100644
--- a/include/fmt/format.h
+++ b/include/fmt/format.h
@@ -3199,10 +3199,10 @@ template <typename It, typename Char>
 struct formatter<arg_join<It, Char>, Char>:
     formatter<typename std::iterator_traits<It>::value_type, Char> {
   template <typename FormatContext>
-  auto format(const arg_join<It, Char> &value, FormatContext &ctx) {
+  auto format(const arg_join<It, Char> &value, FormatContext &ctx) -> decltype(ctx.begin()) {
     typedef formatter<typename std::iterator_traits<It>::value_type, Char> base;
     auto it = value.begin;
-    auto out = ctx.begin(); 
+    auto out = ctx.begin();
     if (it != value.end) {
       out = base::format(*it++, ctx);
       while (it != value.end) {