2 #ifndef BOOST_THREAD_PROVIDES_FUTURE 3 #define BOOST_THREAD_PROVIDES_FUTURE 5 #ifndef BOOST_THREAD_PROVIDES_FUTURE_CONTINUATION 6 #define BOOST_THREAD_PROVIDES_FUTURE_CONTINUATION 8 #ifndef BOOST_THREAD_PROVIDES_FUTURE_WHEN_ALL_WHEN_ANY 9 #define BOOST_THREAD_PROVIDES_FUTURE_WHEN_ALL_WHEN_ANY 12 #include <boost/thread/future.hpp>