1 files changed, 55 insertions, 0 deletions
diff --git a/boost/context/detail/apply.hpp b/boost/context/detail/apply.hpp
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--- /dev/null
+++ b/boost/context/detail/apply.hpp
@@ -0,0 +1,55 @@
+
+//          Copyright Oliver Kowalke 2014.
+// 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_CONTEXT_DETAIL_APPLY_H
+#define BOOST_CONTEXT_DETAIL_APPLY_H
+
+#include <functional>
+#include <tuple>
+#include <type_traits>
+#include <utility>
+
+#include <boost/config.hpp>
+
+#include <boost/context/detail/config.hpp>
+#include <boost/context/detail/invoke.hpp>
+#include <boost/context/detail/index_sequence.hpp>
+
+#ifdef BOOST_HAS_ABI_HEADERS
+# include BOOST_ABI_PREFIX
+#endif
+
+namespace boost {
+namespace context {
+namespace detail {
+
+template< typename Fn, typename Tpl, std::size_t ... I >
+auto
+apply_impl( Fn && fn, Tpl && tpl, index_sequence< I ... >) 
+    -> decltype( invoke( std::forward< Fn >( fn), std::get< I >( std::forward< Tpl >( tpl) ) ... ) )
+{
+    return invoke( std::forward< Fn >( fn), std::get< I >( std::forward< Tpl >( tpl) ) ... );
+}
+
+template< typename Fn, typename Tpl >
+auto
+apply( Fn && fn, Tpl && tpl) 
+    -> decltype( apply_impl( std::forward< Fn >( fn),
+                 std::forward< Tpl >( tpl),
+                 make_index_sequence< std::tuple_size< typename std::decay< Tpl >::type >::value >{}) )
+{
+    return apply_impl( std::forward< Fn >( fn),
+                       std::forward< Tpl >( tpl),
+                       make_index_sequence< std::tuple_size< typename std::decay< Tpl >::type >::value >{});
+}
+
+}}}
+
+#ifdef BOOST_HAS_ABI_HEADERS
+#include BOOST_ABI_SUFFIX
+#endif
+
+#endif // BOOST_CONTEXT_DETAIL_APPLY_H