//----------------------------------------------------------------------------- // boost mpl/test/apply_if.cpp source file // See http://www.boost.org for updates, documentation, and revision history. //----------------------------------------------------------------------------- // // Copyright (c) 2000-02 // Aleksey Gurtovoy // // Permission to use, copy, modify, distribute and sell this software // and its documentation for any purpose is hereby granted without fee, // provided that the above copyright notice appears in all copies and // that both the copyright notice and this permission notice appear in // supporting documentation. No representations are made about the // suitability of this software for any purpose. It is provided "as is" // without express or implied warranty. #include "boost/mpl/apply_if.hpp" #include "boost/mpl/bool.hpp" #include "boost/mpl/identity.hpp" #include "boost/mpl/assert_is_same.hpp" namespace mpl = boost::mpl; int main() { typedef mpl::apply_if< mpl::true_ , mpl::identity , mpl::identity >::type t1; typedef mpl::apply_if_c< true , mpl::identity , mpl::identity >::type t2; BOOST_MPL_ASSERT_IS_SAME(t1, char); BOOST_MPL_ASSERT_IS_SAME(t2, char); typedef mpl::apply_if< mpl::false_ , mpl::identity , mpl::identity >::type t3; typedef mpl::apply_if_c< false , mpl::identity , mpl::identity >::type t4; BOOST_MPL_ASSERT_IS_SAME(t3, long); BOOST_MPL_ASSERT_IS_SAME(t4, long); return 0; }