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- /*=============================================================================
- Copyright (c) 2017 Paul Fultz II
- rotate.cpp
- 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/hof/rotate.hpp>
- #include <boost/hof/placeholders.hpp>
- #include <boost/hof/compose.hpp>
- #include <boost/hof/repeat.hpp>
- #include "test.hpp"
- struct head
- {
- template<class T, class... Ts>
- constexpr T operator()(T x, Ts&&...) const
- BOOST_HOF_RETURNS_DEDUCE_NOEXCEPT(x)
- {
- return x;
- }
- };
- #if BOOST_HOF_HAS_NOEXCEPT_DEDUCTION
- BOOST_HOF_TEST_CASE()
- {
- static_assert(noexcept(boost::hof::rotate(head{})(1, 2, 3, 4)), "noexcept rotate");
- static_assert(noexcept(boost::hof::repeat(std::integral_constant<int, 5>{})(boost::hof::rotate)(head{})(1, 2, 3, 4, 5, 6, 7, 8, 9)), "noexcept rotate");
- }
- #endif
- BOOST_HOF_TEST_CASE()
- {
- BOOST_HOF_TEST_CHECK(2 == boost::hof::rotate(head{})(1, 2, 3, 4));
- BOOST_HOF_STATIC_TEST_CHECK(2 == boost::hof::rotate(head{})(1, 2, 3, 4));
- }
- BOOST_HOF_TEST_CASE()
- {
- BOOST_HOF_TEST_CHECK(3 == boost::hof::compose(boost::hof::rotate, boost::hof::rotate)(head{})(1, 2, 3, 4));
- BOOST_HOF_STATIC_TEST_CHECK(3 == boost::hof::compose(boost::hof::rotate, boost::hof::rotate)(head{})(1, 2, 3, 4));
- }
- BOOST_HOF_TEST_CASE()
- {
- BOOST_HOF_TEST_CHECK(6 == boost::hof::repeat(std::integral_constant<int, 5>{})(boost::hof::rotate)(head{})(1, 2, 3, 4, 5, 6, 7, 8, 9));
- BOOST_HOF_STATIC_TEST_CHECK(6 == boost::hof::repeat(std::integral_constant<int, 5>{})(boost::hof::rotate)(head{})(1, 2, 3, 4, 5, 6, 7, 8, 9));
- }
- BOOST_HOF_TEST_CASE()
- {
- BOOST_HOF_TEST_CHECK(3 == boost::hof::rotate(boost::hof::_ - boost::hof::_)(2, 5));
- BOOST_HOF_STATIC_TEST_CHECK(3 == boost::hof::rotate(boost::hof::_ - boost::hof::_)(2, 5));
- }
- #if defined(__GNUC__) && !defined (__clang__) && __GNUC__ == 4 && __GNUC_MINOR__ < 7
- #define FINAL
- #else
- #define FINAL final
- #endif
- struct f FINAL {
- int operator()(int i, void *) const {
- return i;
- }
- };
- BOOST_HOF_TEST_CASE()
- {
- BOOST_HOF_TEST_CHECK(boost::hof::rotate(f())(nullptr, 2) == 2);
- }
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