Added boost header

test/external/boost/variant/detail/substitute_fwd.hpp

@@ -0,0 +1,59 @@
+//-----------------------------------------------------------------------------
+// boost variant/detail/substitute_fwd.hpp header file
+// See http://www.boost.org for updates, documentation, and revision history.
+//-----------------------------------------------------------------------------
+//
+// Copyright (c) 2003
+// Eric Friedman
+//
+// 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 BOOST_VARIANT_DETAIL_SUBSTITUTE_FWD_HPP
+#define BOOST_VARIANT_DETAIL_SUBSTITUTE_FWD_HPP
+
+#include "boost/mpl/aux_/lambda_arity_param.hpp"
+#include "boost/mpl/aux_/template_arity.hpp"
+#include "boost/mpl/int_fwd.hpp"
+
+
+///////////////////////////////////////////////////////////////////////////////
+// BOOST_VARIANT_DETAIL_NO_SUBSTITUTE
+//
+// Defined if 'substitute' is not implementable on the current compiler.
+//
+
+#include "boost/mpl/aux_/config/ctps.hpp"
+#include "boost/mpl/aux_/config/ttp.hpp"
+
+#if defined(BOOST_NO_TEMPLATE_TEMPLATE_PARAMETERS) \
+ || defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) \
+ && !defined(BOOST_VARIANT_DETAIL_NO_SUBSTITUTE)
+#   define BOOST_VARIANT_DETAIL_NO_SUBSTITUTE
+#endif
+
+namespace boost {
+namespace detail { namespace variant {
+
+#if !defined(BOOST_VARIANT_DETAIL_NO_SUBSTITUTE)
+
+///////////////////////////////////////////////////////////////////////////////
+// metafunction substitute
+//
+// Substitutes one type for another in the given type expression.
+//
+template <
+      typename T, typename Dest, typename Source
+      BOOST_MPL_AUX_LAMBDA_ARITY_PARAM(
+          typename Arity = mpl::int_< mpl::aux::template_arity<T>::value >
+        )
+    >
+struct substitute;
+
+#endif // !defined(BOOST_VARIANT_DETAIL_NO_SUBSTITUTE)
+
+}} // namespace detail::variant
+} // namespace boost
+
+#endif // BOOST_VARIANT_DETAIL_SUBSTITUTE_FWD_HPP