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2 | // (C) Copyright Joel de Guzman 2003. |
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3 | // Distributed under the Boost Software License, Version 1.0. (See |
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4 | // accompanying file LICENSE_1_0.txt or copy at |
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5 | // http://www.boost.org/LICENSE_1_0.txt) |
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6 | |
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7 | #ifndef PY_CONTAINER_UTILS_JDG20038_HPP |
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8 | # define PY_CONTAINER_UTILS_JDG20038_HPP |
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9 | |
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10 | # include <boost/python/object.hpp> |
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11 | # include <boost/python/handle.hpp> |
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12 | # include <boost/python/extract.hpp> |
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13 | |
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14 | namespace boost { namespace python { namespace container_utils { |
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15 | |
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16 | template <typename Container> |
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17 | void |
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18 | extend_container(Container& container, object l) |
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19 | { |
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20 | typedef typename Container::value_type data_type; |
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21 | |
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22 | // l must be a list or some container |
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23 | |
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24 | for (int i = 0; i < l.attr("__len__")(); i++) |
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25 | { |
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26 | object elem(l[i]); |
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27 | extract<data_type const&> x(elem); |
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28 | // try if elem is an exact data_type type |
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29 | if (x.check()) |
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30 | { |
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31 | container.push_back(x()); |
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32 | } |
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33 | else |
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34 | { |
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35 | // try to convert elem to data_type type |
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36 | extract<data_type> x(elem); |
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37 | if (x.check()) |
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38 | { |
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39 | container.push_back(x()); |
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40 | } |
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41 | else |
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42 | { |
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43 | PyErr_SetString(PyExc_TypeError, "Incompatible Data Type"); |
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44 | throw_error_already_set(); |
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45 | } |
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46 | } |
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47 | } |
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48 | } |
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49 | |
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50 | }}} // namespace boost::python::container_utils |
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51 | |
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52 | #endif |
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