1
2 // Copyright Oliver Kowalke 2009.
3 // Distributed under the Boost Software License, Version 1.0.
4 // (See accompanying file LICENSE_1_0.txt or copy at
5 // http://www.boost.org/LICENSE_1_0.txt)
6
7 #include <boost/context/detail/fcontext.hpp>
8
9 using boost::context::detail::fcontext_t;
10 using boost::context::detail::transfer_t;
11
12 // This C++ tail of ontop_fcontext() allocates transfer_t{ from, vp }
13 // on the stack. If fn() throws a C++ exception, then the C++ runtime
14 // must remove this tail's stack frame.
15 extern "C" transfer_t
ontop_fcontext_tail(int ignore,void * vp,transfer_t (* fn)(transfer_t),fcontext_t const from)16 ontop_fcontext_tail( int ignore, void * vp, transfer_t (* fn)(transfer_t), fcontext_t const from) {
17 return fn( transfer_t{ from, vp });
18 }
19