From c273159c94ae18473443b8855f42bee0e0e3bcb7 Mon Sep 17 00:00:00 2001
From: Peter Dimov <pdimov@pdimov.com>
Date: Tue, 12 Dec 2017 00:05:18 +0200
Subject: [PATCH] Zero-length arrays are an extension

---
 include/boost/mp11/algorithm.hpp | 4 ----
 include/boost/mp11/tuple.hpp     | 6 +-----
 2 files changed, 1 insertion(+), 9 deletions(-)

diff --git a/include/boost/mp11/algorithm.hpp b/include/boost/mp11/algorithm.hpp
index 81d6ef9..4e8f2c7 100644
--- a/include/boost/mp11/algorithm.hpp
+++ b/include/boost/mp11/algorithm.hpp
@@ -907,15 +907,11 @@ template<class... T, class F> BOOST_CONSTEXPR F mp_for_each_impl( mp_list<T...>,
     return (void)A{ ((void)f(T()), 0)... }, std::forward<F>(f);
 }
 
-#if BOOST_WORKAROUND( BOOST_MSVC, <= 1800 )
-
 template<class F> BOOST_CONSTEXPR F mp_for_each_impl( mp_list<>, F && f )
 {
     return std::forward<F>(f);
 }
 
-#endif
-
 } // namespace detail
 
 template<class L, class F> BOOST_CONSTEXPR F mp_for_each( F && f )
diff --git a/include/boost/mp11/tuple.hpp b/include/boost/mp11/tuple.hpp
index afcd119..b3221f2 100644
--- a/include/boost/mp11/tuple.hpp
+++ b/include/boost/mp11/tuple.hpp
@@ -69,15 +69,11 @@ template<class Tp, std::size_t... J, class F> BOOST_CONSTEXPR F tuple_for_each_i
     return (void)A{ ((void)f(std::get<J>(std::forward<Tp>(tp))), 0)... }, std::forward<F>(f);
 }
 
-#if BOOST_WORKAROUND( BOOST_MSVC, <= 1800 )
-
-template<class Tp, class F> BOOST_CONSTEXPR F tuple_for_each_impl( Tp && tp, integer_sequence<std::size_t>, F && f )
+template<class Tp, class F> BOOST_CONSTEXPR F tuple_for_each_impl( Tp && /*tp*/, integer_sequence<std::size_t>, F && f )
 {
     return std::forward<F>(f);
 }
 
-#endif
-
 } // namespace detail
 
 template<class Tp, class F> BOOST_CONSTEXPR F tuple_for_each( Tp && tp, F && f )