add boost on mac

macx64/include/boost/fiber/future/detail/shared_state_object.hpp

@@ -0,0 +1,59 @@
+
+//          Copyright Oliver Kowalke 2013.
+// 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_FIBERS_DETAIL_SHARED_STATE_OBJECT_H
+#define BOOST_FIBERS_DETAIL_SHARED_STATE_OBJECT_H
+
+#include <memory>
+
+#include <boost/config.hpp>
+
+#include <boost/fiber/detail/config.hpp>
+#include <boost/fiber/future/detail/shared_state.hpp>
+
+#ifdef BOOST_HAS_ABI_HEADERS
+#  include BOOST_ABI_PREFIX
+#endif
+
+namespace boost {
+namespace fibers {
+namespace detail {
+
+template< typename R, typename Allocator >
+class shared_state_object : public shared_state< R > {
+public:
+    typedef typename std::allocator_traits< Allocator >::template rebind_alloc< 
+        shared_state_object
+    >                                           allocator_type;
+
+    shared_state_object( allocator_type const& alloc) :
+        shared_state< R >{},
+        alloc_{ alloc } {
+    }
+
+protected:
+    void deallocate_future() noexcept override final {
+        destroy_( alloc_, this);
+    }
+
+private:
+    allocator_type             alloc_;
+
+    static void destroy_( allocator_type const& alloc, shared_state_object * p) noexcept {
+        allocator_type a{ alloc };
+        typedef std::allocator_traits< allocator_type >    traity_type;
+        traity_type::destroy( a, p);
+        traity_type::deallocate( a, p, 1);
+    }
+};
+
+}}}
+
+#ifdef BOOST_HAS_ABI_HEADERS
+#  include BOOST_ABI_SUFFIX
+#endif
+
+#endif // BOOST_FIBERS_DETAIL_SHARED_STATE_OBJECT_H