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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_UTIL_COORDINATE_CAST_HPP
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15 #define BOOST_GEOMETRY_UTIL_COORDINATE_CAST_HPP
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16
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17 #include <cstdlib>
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18 #include <string>
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19 #include <boost/lexical_cast.hpp>
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20
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21 namespace boost { namespace geometry
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22 {
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23
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24 #ifndef DOXYGEN_NO_DETAIL
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25 namespace detail
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26 {
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27
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28 /*!
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29 \brief cast coordinates from a string to a coordinate type
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30 \detail By default it uses lexical_cast. However, lexical_cast seems not to support
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31 ttmath / partial specializations. Therefore this small utility is added.
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32 See also "define_pi" where the same issue is solved
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33 */
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34 template <typename CoordinateType>
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35 struct coordinate_cast
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36 {
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37 static inline CoordinateType apply(std::string const& source)
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38 {
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39 #if defined(BOOST_GEOMETRY_NO_LEXICAL_CAST)
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40 return atof(source.c_str());
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41 #else
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42 return boost::lexical_cast<CoordinateType>(source);
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43 #endif
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44 }
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45 };
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46
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47
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48 } // namespace detail
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49 #endif
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50
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51
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52
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53 }} // namespace boost::geometry
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54
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55 #endif // BOOST_GEOMETRY_UTIL_COORDINATE_CAST_HPP
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