Last change
on this file since 35 was
29,
checked in by landauf, 16 years ago
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updated boost from 1_33_1 to 1_34_1
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File size:
839 bytes
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1 | // Copyright David Abrahams 2004. Distributed under the Boost |
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2 | // Software License, Version 1.0. (See accompanying |
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3 | // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) |
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4 | #ifndef IS_WRAPPER_DWA2004723_HPP |
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5 | # define IS_WRAPPER_DWA2004723_HPP |
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6 | |
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7 | # include <boost/python/detail/prefix.hpp> |
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8 | # include <boost/mpl/bool.hpp> |
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9 | |
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10 | namespace boost { namespace python { |
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11 | |
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12 | template <class T> class wrapper; |
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13 | |
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14 | namespace detail |
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15 | { |
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16 | typedef char (&is_not_wrapper)[2]; |
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17 | is_not_wrapper is_wrapper_helper(...); |
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18 | template <class T> |
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19 | char is_wrapper_helper(wrapper<T> const volatile*); |
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20 | |
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21 | // A metafunction returning true iff T is [derived from] wrapper<U> |
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22 | template <class T> |
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23 | struct is_wrapper |
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24 | : mpl::bool_<(sizeof(detail::is_wrapper_helper((T*)0)) == 1)> |
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25 | {}; |
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26 | |
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27 | }}} // namespace boost::python::detail |
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28 | |
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29 | #endif // IS_WRAPPER_DWA2004723_HPP |
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