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72 lines
2.7 KiB
C++
72 lines
2.7 KiB
C++
/*
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* Copyright Louis Dionne 2014
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* Distributed under the Boost Software License, Version 1.0.
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* (See accompanying file LICENSE.md or copy at
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* http://www.boost.org/LICENSE_1_0.txt)
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*/
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#include <boost/hana/list.hpp>
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#include <boost/hana/detail/static_assert.hpp>
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#include <boost/hana/integral.hpp>
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#include <functional>
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using namespace boost::hana;
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void test_Iterable() {
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BOOST_HANA_STATIC_ASSERT(is_empty(list()));
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BOOST_HANA_STATIC_ASSERT(!is_empty(list(int_<0>)));
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BOOST_HANA_STATIC_ASSERT(!is_empty(list(int_<0>, int_<1>)));
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BOOST_HANA_STATIC_ASSERT(head(list(int_<0>)) == int_<0>);
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BOOST_HANA_STATIC_ASSERT(head(list(int_<0>, int_<1>)) == int_<0>);
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BOOST_HANA_STATIC_ASSERT(tail(list(int_<0>)) == list());
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BOOST_HANA_STATIC_ASSERT(tail(list(int_<0>, int_<1>)) == list(int_<1>));
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BOOST_HANA_STATIC_ASSERT(tail(list(int_<0>, int_<1>, int_<2>)) == list(int_<1>, int_<2>));
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}
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void test_comparison() {
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BOOST_HANA_STATIC_ASSERT(list() == list());
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BOOST_HANA_STATIC_ASSERT(list(int_<0>) != list());
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BOOST_HANA_STATIC_ASSERT(list() != list(int_<0>));
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BOOST_HANA_STATIC_ASSERT(list(int_<0>) == list(int_<0>));
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BOOST_HANA_STATIC_ASSERT(list(int_<0>, int_<1>) != list(int_<0>));
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BOOST_HANA_STATIC_ASSERT(list(int_<0>, int_<1>) == list(int_<0>, int_<1>));
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BOOST_HANA_STATIC_ASSERT(list(0) == list(0));
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BOOST_HANA_STATIC_ASSERT(list(0, 1) != list(0, 2));
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BOOST_HANA_STATIC_ASSERT(list(0, 1, 2) == list(0, 1, 2));
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}
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constexpr struct {
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template <typename I>
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constexpr auto operator()(I i) const { return i + int_<1>; }
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} f{};
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void test_Functor() {
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BOOST_HANA_STATIC_ASSERT(fmap(f, list()) == list());
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BOOST_HANA_STATIC_ASSERT(fmap(f, list(int_<1>)) == list(f(int_<1>)));
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BOOST_HANA_STATIC_ASSERT(fmap(f, list(int_<1>, int_<2>)) == list(f(int_<1>), f(int_<2>)));
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BOOST_HANA_STATIC_ASSERT(fmap(f, list(int_<1>, int_<2>, int_<3>)) == list(f(int_<1>), f(int_<2>), f(int_<3>)));
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}
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template <int ...i>
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constexpr auto list_c = list(int_<i>...);
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void test_zip_with() {
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BOOST_HANA_STATIC_ASSERT(zip_with(std::plus<>{}, list(), list()) == list());
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BOOST_HANA_STATIC_ASSERT(zip_with(std::plus<>{}, list_c<1>, list()) == list());
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BOOST_HANA_STATIC_ASSERT(zip_with(std::plus<>{}, list(), list_c<3>) == list());
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BOOST_HANA_STATIC_ASSERT(zip_with(std::plus<>{}, list_c<1>, list_c<3>) == list_c<1 + 3>);
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BOOST_HANA_STATIC_ASSERT(zip_with(std::plus<>{}, list_c<1, 2>, list_c<3, 4>) == list_c<1 + 3, 2 + 4>);
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BOOST_HANA_STATIC_ASSERT(zip_with(std::plus<>{}, list_c<1, 2, 3, 4>, list_c<5, 6, 7>) == list_c<1 + 5, 2 + 6, 3 + 7>);
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}
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int main() {
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test_Iterable();
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test_comparison();
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test_Functor();
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test_zip_with();
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}
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