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47 lines
1.6 KiB
C++
47 lines
1.6 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/iterable.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 <boost/hana/list.hpp>
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using namespace boost::hana;
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constexpr auto iterable = list; // minimal iterable
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void test_at() {
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BOOST_HANA_STATIC_ASSERT(at(int_<0>, iterable(int_<0>)) == int_<0>);
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BOOST_HANA_STATIC_ASSERT(at(int_<0>, iterable(int_<0>, int_<1>)) == int_<0>);
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BOOST_HANA_STATIC_ASSERT(at(int_<1>, iterable(int_<0>, int_<1>)) == int_<1>);
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BOOST_HANA_STATIC_ASSERT(at(int_<0>, iterable(int_<0>, int_<1>, int_<2>)) == int_<0>);
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BOOST_HANA_STATIC_ASSERT(at(int_<1>, iterable(int_<0>, int_<1>, int_<2>)) == int_<1>);
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BOOST_HANA_STATIC_ASSERT(at(int_<2>, iterable(int_<0>, int_<1>, int_<2>)) == int_<2>);
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}
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void test_last() {
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BOOST_HANA_STATIC_ASSERT(last(iterable(int_<0>)) == int_<0>);
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BOOST_HANA_STATIC_ASSERT(last(iterable(int_<0>, int_<1>)) == int_<1>);
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BOOST_HANA_STATIC_ASSERT(last(iterable(int_<0>, int_<1>, int_<2>)) == int_<2>);
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}
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void test_length() {
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BOOST_HANA_STATIC_ASSERT(length(iterable()) == int_<0>);
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BOOST_HANA_STATIC_ASSERT(length(iterable(int_<0>)) == int_<1>);
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BOOST_HANA_STATIC_ASSERT(length(iterable(int_<0>, int_<1>)) == int_<2>);
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BOOST_HANA_STATIC_ASSERT(length(iterable(int_<0>, int_<1>, int_<2>)) == int_<3>);
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}
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int main() {
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test_at();
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test_last();
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test_length();
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}
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