Chris@102: // Boost.Geometry
Chris@102: 
Chris@102: // Copyright (c) 2015 Oracle and/or its affiliates.
Chris@102: 
Chris@102: // Contributed and/or modified by Adam Wulkiewicz, on behalf of Oracle
Chris@102: 
Chris@102: // Use, modification and distribution is subject to the Boost Software License,
Chris@102: // Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
Chris@102: // http://www.boost.org/LICENSE_1_0.txt)
Chris@102: 
Chris@102: #ifndef BOOST_GEOMETRY_UTIL_CONDITION_HPP
Chris@102: #define BOOST_GEOMETRY_UTIL_CONDITION_HPP
Chris@102: 
Chris@102: 
Chris@102: #include <boost/config.hpp>
Chris@102: 
Chris@102: 
Chris@102: // The macro defined in this file allows to suppress the MSVC
Chris@102: // compiler warning C4127: conditional expression is constant
Chris@102: 
Chris@102: #ifdef BOOST_MSVC
Chris@102: 
Chris@102: // NOTE: The code commented out below contains an alternative implementation
Chris@102: // of a macro using a free function. It was left here in case if in the future
Chris@102: // version of MSVC for the code currently used in the macro implementation
Chris@102: // the warning was generated.
Chris@102: 
Chris@102: //#ifndef DOXYGEN_NO_DETAIL
Chris@102: //namespace boost { namespace geometry { namespace detail {
Chris@102: //BOOST_FORCEINLINE bool condition(bool const b) { return b; }
Chris@102: //}}} // boost::geometry::detail
Chris@102: //#endif // DOXYGEN_NO_DETAIL
Chris@102: //#define BOOST_GEOMETRY_CONDITION(CONDITION) boost::geometry::detail::condition(CONDITION)
Chris@102: 
Chris@102: #define BOOST_GEOMETRY_CONDITION(CONDITION) ((void)0, (CONDITION))
Chris@102: 
Chris@102: #else
Chris@102: 
Chris@102: #define BOOST_GEOMETRY_CONDITION(CONDITION) (CONDITION)
Chris@102: 
Chris@102: #endif
Chris@102: 
Chris@102: 
Chris@102: #endif // BOOST_GEOMETRY_UTIL_CONDITION_HPP