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1 // Boost.Geometry (aka GGL, Generic Geometry Library)
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2
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3 // Copyright (c) 2007-2012 Barend Gehrels, Amsterdam, the Netherlands.
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4 // Copyright (c) 2008-2012 Bruno Lalande, Paris, France.
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5 // Copyright (c) 2009-2012 Mateusz Loskot, London, UK.
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6
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7 // Parts of Boost.Geometry are redesigned from Geodan's Geographic Library
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8 // (geolib/GGL), copyright (c) 1995-2010 Geodan, Amsterdam, the Netherlands.
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9
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10 // Use, modification and distribution is subject to the Boost Software License,
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11 // Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
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12 // http://www.boost.org/LICENSE_1_0.txt)
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13
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14 #ifndef BOOST_GEOMETRY_ALGORITHMS_DETAIL_NOT_HPP
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15 #define BOOST_GEOMETRY_ALGORITHMS_DETAIL_NOT_HPP
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16
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17 namespace boost { namespace geometry
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18 {
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19
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20 #ifndef DOXYGEN_NO_DETAIL
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21 namespace detail
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22 {
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23
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24
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25
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26 /*!
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27 \brief Structure negating the result of specified policy
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28 \tparam Geometry1 \tparam_geometry
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29 \tparam Geometry2 \tparam_geometry
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30 \tparam Policy
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31 \param geometry1 \param_geometry
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32 \param geometry2 \param_geometry
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33 \return Negation of the result of the policy
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34 */
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35 template <typename Geometry1, typename Geometry2, typename Policy>
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36 struct not_
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37 {
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38 static inline bool apply(Geometry1 const &geometry1, Geometry2 const& geometry2)
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39 {
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40 return ! Policy::apply(geometry1, geometry2);
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41 }
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42 };
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43
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44
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45 } // namespace detail
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46 #endif // DOXYGEN_NO_DETAIL
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47
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48 }} // namespace boost::geometry
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49
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50 #endif // BOOST_GEOMETRY_ALGORITHMS_DETAIL_NOT_HPP
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