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Diffstat (limited to 'src/boost/libs/mp11/test/mp_take.cpp')
-rw-r--r-- | src/boost/libs/mp11/test/mp_take.cpp | 106 |
1 files changed, 106 insertions, 0 deletions
diff --git a/src/boost/libs/mp11/test/mp_take.cpp b/src/boost/libs/mp11/test/mp_take.cpp new file mode 100644 index 000000000..c7f042272 --- /dev/null +++ b/src/boost/libs/mp11/test/mp_take.cpp @@ -0,0 +1,106 @@ + +// Copyright 2015 Peter Dimov. +// +// 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 <boost/mp11/algorithm.hpp> +#include <boost/mp11/list.hpp> +#include <boost/mp11/integral.hpp> +#include <boost/core/lightweight_test_trait.hpp> +#include <type_traits> +#include <tuple> +#include <utility> + +struct X1 {}; +struct X2 {}; +struct X3 {}; +struct X4 {}; +struct X5 {}; + +int main() +{ + using boost::mp11::mp_list; + using boost::mp11::mp_take; + using boost::mp11::mp_take_c; + using boost::mp11::mp_size_t; + + { + using L1 = mp_list<>; + + BOOST_TEST_TRAIT_TRUE((std::is_same<mp_take_c<L1, 0>, L1>)); + BOOST_TEST_TRAIT_TRUE((std::is_same<mp_take<L1, mp_size_t<0>>, L1>)); + + using L2 = mp_list<X1, X2, X3, X4, X5>; + + BOOST_TEST_TRAIT_TRUE((std::is_same<mp_take_c<L2, 0>, mp_list<>>)); + BOOST_TEST_TRAIT_TRUE((std::is_same<mp_take_c<L2, 1>, mp_list<X1>>)); + BOOST_TEST_TRAIT_TRUE((std::is_same<mp_take_c<L2, 2>, mp_list<X1, X2>>)); + BOOST_TEST_TRAIT_TRUE((std::is_same<mp_take_c<L2, 3>, mp_list<X1, X2, X3>>)); + BOOST_TEST_TRAIT_TRUE((std::is_same<mp_take_c<L2, 4>, mp_list<X1, X2, X3, X4>>)); + BOOST_TEST_TRAIT_TRUE((std::is_same<mp_take_c<L2, 5>, mp_list<X1, X2, X3, X4, X5>>)); + + BOOST_TEST_TRAIT_TRUE((std::is_same<mp_take<L2, mp_size_t<0>>, mp_list<>>)); + BOOST_TEST_TRAIT_TRUE((std::is_same<mp_take<L2, mp_size_t<1>>, mp_list<X1>>)); + BOOST_TEST_TRAIT_TRUE((std::is_same<mp_take<L2, mp_size_t<2>>, mp_list<X1, X2>>)); + BOOST_TEST_TRAIT_TRUE((std::is_same<mp_take<L2, mp_size_t<3>>, mp_list<X1, X2, X3>>)); + BOOST_TEST_TRAIT_TRUE((std::is_same<mp_take<L2, mp_size_t<4>>, mp_list<X1, X2, X3, X4>>)); + BOOST_TEST_TRAIT_TRUE((std::is_same<mp_take<L2, mp_size_t<5>>, mp_list<X1, X2, X3, X4, X5>>)); + + using L3 = mp_list<X1, X2, X3, X4, X5, X1, X2, X3, X4, X5, X1, X2, X3, X4, X5, X1, X2, X3, X4, X5>; + + BOOST_TEST_TRAIT_TRUE((std::is_same<mp_take_c<L3, 6>, mp_list<X1, X2, X3, X4, X5, X1>>)); + BOOST_TEST_TRAIT_TRUE((std::is_same<mp_take_c<L3, 7>, mp_list<X1, X2, X3, X4, X5, X1, X2>>)); + BOOST_TEST_TRAIT_TRUE((std::is_same<mp_take_c<L3, 8>, mp_list<X1, X2, X3, X4, X5, X1, X2, X3>>)); + BOOST_TEST_TRAIT_TRUE((std::is_same<mp_take_c<L3, 9>, mp_list<X1, X2, X3, X4, X5, X1, X2, X3, X4>>)); + BOOST_TEST_TRAIT_TRUE((std::is_same<mp_take_c<L3, 10>, mp_list<X1, X2, X3, X4, X5, X1, X2, X3, X4, X5>>)); + BOOST_TEST_TRAIT_TRUE((std::is_same<mp_take_c<L3, 11>, mp_list<X1, X2, X3, X4, X5, X1, X2, X3, X4, X5, X1>>)); + + BOOST_TEST_TRAIT_TRUE((std::is_same<mp_take<L3, mp_size_t< 6>>, mp_list<X1, X2, X3, X4, X5, X1>>)); + BOOST_TEST_TRAIT_TRUE((std::is_same<mp_take<L3, mp_size_t< 7>>, mp_list<X1, X2, X3, X4, X5, X1, X2>>)); + BOOST_TEST_TRAIT_TRUE((std::is_same<mp_take<L3, mp_size_t< 8>>, mp_list<X1, X2, X3, X4, X5, X1, X2, X3>>)); + BOOST_TEST_TRAIT_TRUE((std::is_same<mp_take<L3, mp_size_t< 9>>, mp_list<X1, X2, X3, X4, X5, X1, X2, X3, X4>>)); + BOOST_TEST_TRAIT_TRUE((std::is_same<mp_take<L3, mp_size_t<10>>, mp_list<X1, X2, X3, X4, X5, X1, X2, X3, X4, X5>>)); + BOOST_TEST_TRAIT_TRUE((std::is_same<mp_take<L3, mp_size_t<11>>, mp_list<X1, X2, X3, X4, X5, X1, X2, X3, X4, X5, X1>>)); + } + + { + using L1 = std::tuple<>; + + BOOST_TEST_TRAIT_TRUE((std::is_same<mp_take_c<L1, 0>, L1>)); + BOOST_TEST_TRAIT_TRUE((std::is_same<mp_take<L1, mp_size_t<0>>, L1>)); + + using L2 = std::tuple<X1, X2, X3, X4, X5>; + + BOOST_TEST_TRAIT_TRUE((std::is_same<mp_take_c<L2, 0>, std::tuple<>>)); + BOOST_TEST_TRAIT_TRUE((std::is_same<mp_take_c<L2, 1>, std::tuple<X1>>)); + BOOST_TEST_TRAIT_TRUE((std::is_same<mp_take_c<L2, 2>, std::tuple<X1, X2>>)); + BOOST_TEST_TRAIT_TRUE((std::is_same<mp_take_c<L2, 3>, std::tuple<X1, X2, X3>>)); + BOOST_TEST_TRAIT_TRUE((std::is_same<mp_take_c<L2, 4>, std::tuple<X1, X2, X3, X4>>)); + BOOST_TEST_TRAIT_TRUE((std::is_same<mp_take_c<L2, 5>, std::tuple<X1, X2, X3, X4, X5>>)); + + BOOST_TEST_TRAIT_TRUE((std::is_same<mp_take<L2, mp_size_t<0>>, std::tuple<>>)); + BOOST_TEST_TRAIT_TRUE((std::is_same<mp_take<L2, mp_size_t<1>>, std::tuple<X1>>)); + BOOST_TEST_TRAIT_TRUE((std::is_same<mp_take<L2, mp_size_t<2>>, std::tuple<X1, X2>>)); + BOOST_TEST_TRAIT_TRUE((std::is_same<mp_take<L2, mp_size_t<3>>, std::tuple<X1, X2, X3>>)); + BOOST_TEST_TRAIT_TRUE((std::is_same<mp_take<L2, mp_size_t<4>>, std::tuple<X1, X2, X3, X4>>)); + BOOST_TEST_TRAIT_TRUE((std::is_same<mp_take<L2, mp_size_t<5>>, std::tuple<X1, X2, X3, X4, X5>>)); + + using L3 = std::tuple<X1, X2, X3, X4, X5, X1, X2, X3, X4, X5, X1, X2, X3, X4, X5, X1, X2, X3, X4, X5>; + + BOOST_TEST_TRAIT_TRUE((std::is_same<mp_take_c<L3, 8>, std::tuple<X1, X2, X3, X4, X5, X1, X2, X3>>)); + BOOST_TEST_TRAIT_TRUE((std::is_same<mp_take<L3, mp_size_t<9>>, std::tuple<X1, X2, X3, X4, X5, X1, X2, X3, X4>>)); + } + + { + using L1 = std::pair<X1, X2>; + + BOOST_TEST_TRAIT_TRUE((std::is_same<mp_take_c<L1, 2>, L1>)); + BOOST_TEST_TRAIT_TRUE((std::is_same<mp_take<L1, mp_size_t<2>>, L1>)); + } + + return boost::report_errors(); +} |