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- /*!
- * \file /utl/impl/concepts.h
- * \brief Concept support header
- *
- * Copyright (C) 2018 Christos Choutouridis
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License as
- * published by the Free Software Foundation, either version 3
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
- */
- #ifndef __utl_impl_concepts_h__
- #define __utl_impl_concepts_h__
-
- /*!
- * utl inner concept preprocessor flag
- * \defgroup crtp
- * \ingroup impl
- */
- //!@{
- #if defined __cpp_concepts
- #define _utl_have_concepts (1)
- #endif
-
- /*!
- * requires keyword wrapper
- */
- #if defined _utl_have_concepts
- #define _requires(_r_) requires (_r_)
- #else
- #define _requires(_r_)
- #endif
-
- //!@}
- #endif /* __utl_impl_concepts_h__ */
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