/*! @file Defines `boost::hana::detail::wrong`. @copyright Louis Dionne 2013-2016 Distributed under the Boost Software License, Version 1.0. (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt) */ #ifndef BOOST_HANA_DETAIL_WRONG_HPP #define BOOST_HANA_DETAIL_WRONG_HPP #include <boost/hana/config.hpp> #include <type_traits> BOOST_HANA_NAMESPACE_BEGIN namespace detail { //! @ingroup group-detail //! Equivalent to a type-dependent `std::false_type`. //! //! This is useful for making a static assertion that would otherwise //! always fire up dependent on some template parameters. //! //! //! Example //! ------- //! @include example/detail/wrong.cpp template <typename ...> struct wrong : std::false_type { }; } BOOST_HANA_NAMESPACE_END #endif // !BOOST_HANA_DETAIL_WRONG_HPP
