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85 lines
2.5 KiB
C++
85 lines
2.5 KiB
C++
/*=============================================================================
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Copyright (c) 2001-2011 Joel de Guzman
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Copyright (c) 2007 Dan Marsden
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Copyright (c) 2018 Kohei Takahashi
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Distributed under the Boost Software License, Version 1.0. (See accompanying
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file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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==============================================================================*/
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#include <boost/core/lightweight_test.hpp>
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#include <boost/fusion/container/vector/vector.hpp>
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#include <boost/fusion/adapted/mpl.hpp>
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#include <boost/fusion/algorithm/query/none.hpp>
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#include <boost/lambda/lambda.hpp>
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#include <boost/mpl/vector_c.hpp>
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namespace
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{
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struct search_for
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{
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explicit search_for(int in_search)
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: search(in_search)
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{}
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template<typename T>
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bool operator()(T const& v) const
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{
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return v == search;
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}
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int search;
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};
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struct mutable_search_for : search_for
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{
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explicit mutable_search_for(int in_search)
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: search_for(in_search)
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{}
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template <typename T>
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bool operator()(T const& v)
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{
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return search_for::operator()(v);
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}
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};
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}
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int
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main()
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{
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{
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boost::fusion::vector<int, short, double> t(1, 2, 3.3);
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BOOST_TEST((boost::fusion::none(t, boost::lambda::_1 > 4)));
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BOOST_TEST((boost::fusion::none(t, boost::lambda::_1 < 0)));
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}
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{
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boost::fusion::vector<int, short, double> t(1, 2, 3.3);
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BOOST_TEST((!boost::fusion::none(t, boost::lambda::_1 == 1)));
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BOOST_TEST((!boost::fusion::none(t, boost::lambda::_1 < 3)));
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}
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{
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boost::fusion::vector<int, short, double> t(1, 2, 3.3);
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BOOST_TEST(!boost::fusion::none(t, search_for(1)));
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BOOST_TEST(boost::fusion::none(t, search_for(3)));
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BOOST_TEST(!boost::fusion::none(t, mutable_search_for(1)));
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BOOST_TEST(boost::fusion::none(t, mutable_search_for(3)));
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}
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{
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typedef boost::mpl::vector_c<int, 1, 2, 3> mpl_vec;
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// We cannot use lambda here as mpl vec iterators return
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// rvalues, and lambda needs lvalues.
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BOOST_TEST(boost::fusion::none(mpl_vec(), search_for(4)));
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BOOST_TEST(!boost::fusion::none(mpl_vec(), search_for(3)));
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BOOST_TEST(boost::fusion::none(mpl_vec(), mutable_search_for(4)));
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BOOST_TEST(!boost::fusion::none(mpl_vec(), mutable_search_for(3)));
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}
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return boost::report_errors();
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}
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