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- /*!
- @file
- Defines `boost::hana::detail::wrong`.
- @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)
- */
- #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
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