/*============================================================================= Copyright (c) 2001-2011 Joel de Guzman Copyright (c) 2007 Dan Marsden 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) ==============================================================================*/ #include #include #include #include #include #include namespace { struct search_for { explicit search_for(int in_search) : search(in_search) {} template bool operator()(T const& v) const { return v == search; } int search; }; } int main() { { boost::fusion::vector t(1, 2, 3.3); BOOST_TEST((boost::fusion::none(t, boost::lambda::_1 > 4))); BOOST_TEST((boost::fusion::none(t, boost::lambda::_1 < 0))); } { boost::fusion::vector t(1, 2, 3.3); BOOST_TEST((!boost::fusion::none(t, boost::lambda::_1 == 1))); BOOST_TEST((!boost::fusion::none(t, boost::lambda::_1 < 3))); } { typedef boost::mpl::vector_c mpl_vec; // We cannot use lambda here as mpl vec iterators return // rvalues, and lambda needs lvalues. BOOST_TEST(boost::fusion::none(mpl_vec(), search_for(4))); BOOST_TEST(!boost::fusion::none(mpl_vec(), search_for(3))); } return boost::report_errors(); }