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#ifndef BOOST_CONTRACT_DETAIL_DEBUG_HPP_#define BOOST_CONTRACT_DETAIL_DEBUG_HPP_// Copyright (C) 2008-2018 Lorenzo Caminiti// Distributed under the Boost Software License, Version 1.0 (see accompanying// file LICENSE_1_0.txt or a copy at http://www.boost.org/LICENSE_1_0.txt).// See: http://www.boost.org/doc/libs/release/libs/contract/doc/html/index.html// Usually, never #defined (so "debug" assertions always in code).#ifdef BOOST_CONTRACT_DETAIL_NDEBUG    #define BOOST_CONTRACT_DETAIL_DEBUG(cond) /* nothing */#else    #include <boost/assert.hpp>    // Extra parenthesis around BOOST_ASSERT to be safe because its is a macro.    #define BOOST_CONTRACT_DETAIL_DEBUG(cond) (BOOST_ASSERT(cond))#endif#endif // #include guard
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