| 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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| 56 | |
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