From 4bcc5e71fcdbdda31705644aa9c76d05cd922742 Mon Sep 17 00:00:00 2001
From: bolero-MURAKAMI <bolero.murakami@gmail.com>
Date: Wed, 8 Jan 2014 00:47:39 +0900
Subject: [PATCH] add workaround for clang3.4 or later: base class construct

---
 sprout/container/container_traits.hpp      | 20 ++++++++++-
 sprout/workaround/base_class_construct.hpp | 39 ++++++++++++++++++++++
 2 files changed, 58 insertions(+), 1 deletion(-)
 create mode 100644 sprout/workaround/base_class_construct.hpp

diff --git a/sprout/container/container_traits.hpp b/sprout/container/container_traits.hpp
index 636e3bbd..d6223e47 100644
--- a/sprout/container/container_traits.hpp
+++ b/sprout/container/container_traits.hpp
@@ -20,6 +20,7 @@
 #if SPROUT_USE_PTR_INDEX_ITERATOR_IMPLEMENTATION
 #	include <sprout/iterator/ptr_index_iterator.hpp>
 #endif
+#include <sprout/workaround/base_class_construct.hpp>
 
 namespace sprout {
 	template<typename Container>
@@ -520,7 +521,24 @@ namespace sprout {
 		, public sprout::detail::inherit_if_const_pointer<sprout::container_traits<Container> >
 		, public sprout::detail::inherit_if_static_size<sprout::container_traits<Container> >
 		, public sprout::detail::container_nosy_fixed_size<sprout::container_traits<Container> >
-	{};
+	{
+#if SPROUT_NEEDS_EXPLICIT_EMPTY_BASE_CLASS_CONSTRUCT
+	public:
+		SPROUT_CONSTEXPR container_traits_facade()
+			: SPROUT_EXPLICIT_EMPTY_BASE_CLASS_CONSTRUCT(sprout::detail::inherit_if_value_type<sprout::container_traits<Container> >)
+			, SPROUT_EXPLICIT_EMPTY_BASE_CLASS_CONSTRUCT(sprout::detail::inherit_if_iterator<sprout::container_traits<Container> >)
+			, SPROUT_EXPLICIT_EMPTY_BASE_CLASS_CONSTRUCT(sprout::detail::inherit_if_const_iterator<sprout::container_traits<Container> >)
+			, SPROUT_EXPLICIT_EMPTY_BASE_CLASS_CONSTRUCT(sprout::detail::inherit_if_reference<sprout::container_traits<Container> >)
+			, SPROUT_EXPLICIT_EMPTY_BASE_CLASS_CONSTRUCT(sprout::detail::inherit_if_const_reference<sprout::container_traits<Container> >)
+			, SPROUT_EXPLICIT_EMPTY_BASE_CLASS_CONSTRUCT(sprout::detail::inherit_if_size_type<sprout::container_traits<Container> >)
+			, SPROUT_EXPLICIT_EMPTY_BASE_CLASS_CONSTRUCT(sprout::detail::inherit_if_difference_type<sprout::container_traits<Container> >)
+			, SPROUT_EXPLICIT_EMPTY_BASE_CLASS_CONSTRUCT(sprout::detail::inherit_if_pointer<sprout::container_traits<Container> >)
+			, SPROUT_EXPLICIT_EMPTY_BASE_CLASS_CONSTRUCT(sprout::detail::inherit_if_const_pointer<sprout::container_traits<Container> >)
+			, SPROUT_EXPLICIT_EMPTY_BASE_CLASS_CONSTRUCT(sprout::detail::inherit_if_static_size<sprout::container_traits<Container> >)
+			, SPROUT_EXPLICIT_EMPTY_BASE_CLASS_CONSTRUCT(sprout::detail::container_nosy_fixed_size<sprout::container_traits<Container> >)
+		{}
+#endif
+	};
 
 	//
 	// is_fixed_container
diff --git a/sprout/workaround/base_class_construct.hpp b/sprout/workaround/base_class_construct.hpp
new file mode 100644
index 00000000..e20e7ce6
--- /dev/null
+++ b/sprout/workaround/base_class_construct.hpp
@@ -0,0 +1,39 @@
+/*=============================================================================
+  Copyright (c) 2011-2013 Bolero MURAKAMI
+  https://github.com/bolero-MURAKAMI/Sprout
+
+  Distributed under the Boost Software License, Version 1.0. (See accompanying
+  file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+=============================================================================*/
+#ifndef SPROUT_WORKAROUND_BASE_CLASS_CONSTRUCT_HPP
+#define SPROUT_WORKAROUND_BASE_CLASS_CONSTRUCT_HPP
+
+#include <sprout/config.hpp>
+
+//
+// SPROUT_NEEDS_EXPLICIT_EMPTY_BASE_CLASS_CONSTRUCT
+//
+#ifndef SPROUT_NEEDS_EXPLICIT_EMPTY_BASE_CLASS_CONSTRUCT
+#	if defined(__clang__)
+#		if (__clang_major__ > 3 || (__clang_major__ == 3 && __clang_minor__ >= 4))
+#			define SPROUT_NEEDS_EXPLICIT_EMPTY_BASE_CLASS_CONSTRUCT 1
+#		else
+#			define SPROUT_NEEDS_EXPLICIT_EMPTY_BASE_CLASS_CONSTRUCT 0
+#		endif
+#	else
+#		define SPROUT_NEEDS_EXPLICIT_EMPTY_BASE_CLASS_CONSTRUCT 0
+#	endif
+#endif
+
+//
+// SPROUT_EXPLICIT_EMPTY_BASE_CLASS_CONSTRUCT
+//
+#ifndef SPROUT_EXPLICIT_EMPTY_BASE_CLASS_CONSTRUCT
+#	if SPROUT_NEEDS_EXPLICIT_EMPTY_BASE_CLASS_CONSTRUCT
+#		define SPROUT_EXPLICIT_EMPTY_BASE_CLASS_CONSTRUCT(base) base()
+#	else
+#		define SPROUT_EXPLICIT_EMPTY_BASE_CLASS_CONSTRUCT(base)
+#	endif
+#endif
+
+#endif	// #ifndef SPROUT_WORKAROUND_BASE_CLASS_CONSTRUCT_HPP