From 6808d5cd73062e2de0acb0d6462c4cce0160d9a9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Carsten=20Gr=C3=A4ser?= <graeser@dune-project.org>
Date: Thu, 16 Jun 2016 16:14:03 +0200
Subject: [PATCH] [cleanup] Avoid unused variable warning
We could cast the std::initializer_list to void to avoid the
warning. But extracting this as a function makes the code more
readable.
Maybe evaluateFoldExpression() should be moved outside of Imp::
because this little trick nicely helps to avoid a template recursion
---
dune/solvers/common/algorithm.hh | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/dune/solvers/common/algorithm.hh b/dune/solvers/common/algorithm.hh
index 1c4a6593..ac43feb0 100644
--- a/dune/solvers/common/algorithm.hh
+++ b/dune/solvers/common/algorithm.hh
@@ -240,12 +240,14 @@ constexpr auto integralRange(const End& end)
namespace Imp {
+ template<class T>
+ void evaluateFoldExpression(std::initializer_list<T>&&)
+ {}
+
template<class Range, class F, class Index, Index... i>
constexpr void forEachIndex(Range&& range, F&& f, std::integer_sequence<Index, i...>)
{
- (void)std::initializer_list<int>{
- ((void)f(Hybrid::elementAt(range, std::integral_constant<Index,i>())), 0)...
- };
+ evaluateFoldExpression({(f(Hybrid::elementAt(range, std::integral_constant<Index,i>())), 0)...});
}
template<class Range, class F,
--
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