1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/os/ossrv/ossrv_pub/boost_apis/boost/python/back_reference.hpp	Fri Jun 15 03:10:57 2012 +0200
     1.3 @@ -0,0 +1,102 @@
     1.4 +// Copyright David Abrahams 2002.
     1.5 +// Distributed under the Boost Software License, Version 1.0. (See
     1.6 +// accompanying file LICENSE_1_0.txt or copy at
     1.7 +// http://www.boost.org/LICENSE_1_0.txt)
     1.8 +#ifndef BACK_REFERENCE_DWA2002510_HPP
     1.9 +# define BACK_REFERENCE_DWA2002510_HPP
    1.10 +
    1.11 +# include <boost/python/detail/prefix.hpp>
    1.12 +
    1.13 +# include <boost/python/object_fwd.hpp>
    1.14 +# include <boost/python/detail/dependent.hpp>
    1.15 +# include <boost/python/detail/raw_pyobject.hpp>
    1.16 +
    1.17 +namespace boost { namespace python { 
    1.18 +
    1.19 +template <class T>
    1.20 +struct back_reference
    1.21 +{
    1.22 + private: // types
    1.23 +    typedef typename detail::dependent<object,T>::type source_t;
    1.24 + public:
    1.25 +    typedef T type;
    1.26 +    
    1.27 +    back_reference(PyObject*, T);
    1.28 +    source_t const& source() const;
    1.29 +    T get() const;
    1.30 + private:
    1.31 +    source_t m_source;
    1.32 +    T m_value;
    1.33 +};
    1.34 +
    1.35 +# ifndef BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
    1.36 +template<typename T>
    1.37 +class is_back_reference
    1.38 +{
    1.39 + public:
    1.40 +    BOOST_STATIC_CONSTANT(bool, value = false); 
    1.41 +};
    1.42 +
    1.43 +template<typename T>
    1.44 +class is_back_reference<back_reference<T> >
    1.45 +{
    1.46 + public:
    1.47 +    BOOST_STATIC_CONSTANT(bool, value = true);
    1.48 +};
    1.49 +
    1.50 +# else // no partial specialization
    1.51 +
    1.52 +}} // namespace boost::python
    1.53 +
    1.54 +#include <boost/type.hpp>
    1.55 +
    1.56 +namespace boost { namespace python {
    1.57 +
    1.58 +namespace detail
    1.59 +{
    1.60 +  typedef char (&yes_back_reference_t)[1];
    1.61 +  typedef char (&no_back_reference_t)[2];
    1.62 +      
    1.63 +  no_back_reference_t is_back_reference_test(...);
    1.64 +
    1.65 +  template<typename T>
    1.66 +  yes_back_reference_t is_back_reference_test(boost::type< back_reference<T> >);
    1.67 +}
    1.68 +
    1.69 +template<typename T>
    1.70 +class is_back_reference
    1.71 +{
    1.72 + public:
    1.73 +    BOOST_STATIC_CONSTANT(
    1.74 +        bool, value = (
    1.75 +            sizeof(detail::is_back_reference_test(boost::type<T>()))
    1.76 +            == sizeof(detail::yes_back_reference_t)));
    1.77 +};
    1.78 +
    1.79 +# endif // BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
    1.80 +
    1.81 +//
    1.82 +// implementations
    1.83 +//
    1.84 +template <class T>
    1.85 +back_reference<T>::back_reference(PyObject* p, T x)
    1.86 +    : m_source(detail::borrowed_reference(p))
    1.87 +      , m_value(x)
    1.88 +{
    1.89 +}
    1.90 +
    1.91 +template <class T>
    1.92 +typename back_reference<T>::source_t const& back_reference<T>::source() const
    1.93 +{
    1.94 +    return m_source;
    1.95 +}
    1.96 +
    1.97 +template <class T>
    1.98 +T back_reference<T>::get() const
    1.99 +{
   1.100 +    return m_value;
   1.101 +}
   1.102 +
   1.103 +}} // namespace boost::python
   1.104 +
   1.105 +#endif // BACK_REFERENCE_DWA2002510_HPP