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- // Copyright Louis Dionne 2013-2017
- // Distributed under the Boost Software License, Version 1.0.
- // (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
- #include <boost/hana/detail/any_of.hpp>
- #include <boost/hana/detail/wrong.hpp>
- #include <boost/hana/integral_constant.hpp>
- namespace hana = boost::hana;
- template <typename I>
- struct is_even {
- static constexpr bool value = I::value % 2 == 0;
- };
- static_assert(!hana::detail::any_of<is_even>::value, "");
- static_assert(!hana::detail::any_of<is_even, hana::int_<1>>::value, "");
- static_assert(!hana::detail::any_of<is_even, hana::int_<1>, hana::int_<3>>::value, "");
- static_assert(!hana::detail::any_of<is_even, hana::int_<1>, hana::int_<3>, hana::int_<5>>::value, "");
- static_assert(!hana::detail::any_of<is_even, hana::int_<1>, hana::int_<3>, hana::int_<5>, hana::int_<7>>::value, "");
- static_assert(hana::detail::any_of<is_even, hana::int_<0>>::value, "");
- static_assert(hana::detail::any_of<is_even, hana::int_<0>, hana::int_<2>>::value, "");
- static_assert(hana::detail::any_of<is_even, hana::int_<0>, hana::int_<2>, hana::int_<4>>::value, "");
- static_assert(hana::detail::any_of<is_even, hana::int_<0>, hana::int_<2>, hana::int_<4>, hana::int_<6>>::value, "");
- static_assert(hana::detail::any_of<is_even, hana::int_<0>, hana::int_<1>>::value, "");
- static_assert(hana::detail::any_of<is_even, hana::int_<0>, hana::int_<1>, hana::int_<2>>::value, "");
- static_assert(hana::detail::any_of<is_even, hana::int_<0>, hana::int_<1>, hana::int_<2>, hana::int_<3>>::value, "");
- static_assert(hana::detail::any_of<is_even, hana::int_<0>, hana::int_<1>, hana::int_<2>, hana::int_<3>, hana::int_<4>>::value, "");
- static_assert(hana::detail::any_of<is_even, hana::int_<1>, hana::int_<3>, hana::int_<5>, hana::int_<8>>::value, "");
- static_assert(hana::detail::any_of<is_even, hana::int_<1>, hana::int_<8>, hana::int_<5>, hana::int_<7>>::value, "");
- // Make sure we short-circuit properly
- template <typename ...Dummy>
- struct fail {
- static_assert(hana::detail::wrong<Dummy...>::value,
- "this must never be instantiated");
- };
- static_assert(hana::detail::any_of<is_even, hana::int_<1>, hana::int_<2>, fail<>>::value, "");
- static_assert(hana::detail::any_of<is_even, hana::int_<1>, hana::int_<2>, fail<>, hana::int_<3>>::value, "");
- static_assert(hana::detail::any_of<is_even, hana::int_<1>, hana::int_<2>, fail<>, hana::int_<4>>::value, "");
- int main() { }
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