From 794b44df7f129b1a674f8ecd5c5be50f54906429 Mon Sep 17 00:00:00 2001
From: Felix Schindler <felix.schindler@wwu.de>
Date: Wed, 25 Nov 2020 12:22:23 +0100
Subject: [PATCH] [common.tuple] make specialization a struct
---
dune/xt/common/tuple.hh | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/dune/xt/common/tuple.hh b/dune/xt/common/tuple.hh
index fc7d0b03a..47d28e9ae 100644
--- a/dune/xt/common/tuple.hh
+++ b/dune/xt/common/tuple.hh
@@ -469,7 +469,7 @@ using tuple_cat_t = decltype(std::tuple_cat(std::declval<input_t>()...));
namespace std {
//! specialization for our custom tuple tuple_size can be use on it
template <class... Types>
-class tuple_size<Dune::XT::Common::template_tuple<Types...>>
+struct tuple_size<Dune::XT::Common::template_tuple<Types...>>
: public std::integral_constant<std::size_t, sizeof...(Types)>
{};
--
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