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1 // Copyright David Abrahams 2002.
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2 // Distributed under the Boost Software License, Version 1.0. (See
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3 // accompanying file LICENSE_1_0.txt or copy at
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4 // http://www.boost.org/LICENSE_1_0.txt)
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5 #ifndef ARG_FROM_PYTHON_DWA2002128_HPP
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6 # define ARG_FROM_PYTHON_DWA2002128_HPP
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7
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8 # include <boost/python/detail/prefix.hpp>
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9 # include <boost/python/converter/arg_from_python.hpp>
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10 # if BOOST_WORKAROUND(BOOST_MSVC, BOOST_TESTED_AT(1400)) \
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11 || BOOST_WORKAROUND(BOOST_INTEL_WIN, BOOST_TESTED_AT(800))
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12 # include <boost/type_traits/remove_cv.hpp>
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13 #endif
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14
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15 namespace boost { namespace python {
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16
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17 template <class T>
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18 struct arg_from_python
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19 : converter::select_arg_from_python<
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20 # if BOOST_WORKAROUND(BOOST_MSVC, BOOST_TESTED_AT(1400)) \
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21 || BOOST_WORKAROUND(BOOST_INTEL_WIN, BOOST_TESTED_AT(800))
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22 typename boost::remove_cv<T>::type
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23 # else
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24 T
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25 # endif
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26 >::type
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27 {
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28 typedef typename converter::select_arg_from_python<
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29 # if BOOST_WORKAROUND(BOOST_MSVC, BOOST_TESTED_AT(1400)) \
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30 || BOOST_WORKAROUND(BOOST_INTEL_WIN, BOOST_TESTED_AT(800))
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31 typename boost::remove_cv<T>::type
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32 # else
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33 T
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34 # endif
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35 >::type base;
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36
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37 arg_from_python(PyObject*);
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38 };
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39
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40 // specialization for PyObject*
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41 template <>
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42 struct arg_from_python<PyObject*>
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43 {
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44 typedef PyObject* result_type;
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45
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46 arg_from_python(PyObject* p) : m_source(p) {}
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47 bool convertible() const { return true; }
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48 PyObject* operator()() const { return m_source; }
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49 private:
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50 PyObject* m_source;
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51 };
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52
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53 template <>
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54 struct arg_from_python<PyObject* const&>
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55 {
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56 typedef PyObject* const& result_type;
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57
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58 arg_from_python(PyObject* p) : m_source(p) {}
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59 bool convertible() const { return true; }
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60 PyObject*const& operator()() const { return m_source; }
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61 private:
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62 PyObject* m_source;
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63 };
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64
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65 //
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66 // implementations
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67 //
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68 template <class T>
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69 inline arg_from_python<T>::arg_from_python(PyObject* source)
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70 : base(source)
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71 {
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72 }
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73
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74 }} // namespace boost::python
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75
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76 #endif // ARG_FROM_PYTHON_DWA2002128_HPP
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