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// Copyright David Abrahams 2002.
// Distributed under the Boost Software License, Version 1.0. (See
// accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
#ifndef OBJECT_OPERATORS_DWA2002617_HPP
# define OBJECT_OPERATORS_DWA2002617_HPP
# include <boost/python/detail/prefix.hpp>
# include <boost/python/object_core.hpp>
# include <boost/python/call.hpp>
# include <boost/iterator/detail/enable_if.hpp>
# include <boost/mpl/bool.hpp>
# include <boost/iterator/detail/config_def.hpp>
namespace boost { namespace python { namespace api {
template <class X>
char is_object_operators_helper(object_operators<X> const*);
typedef char (&no_type)[2];
no_type is_object_operators_helper(...);
template <class X> X* make_ptr();
template <class L, class R = L>
struct is_object_operators
{
enum {
value
= (sizeof(api::is_object_operators_helper(api::make_ptr<L>()))
+ sizeof(api::is_object_operators_helper(api::make_ptr<R>()))
< 4
)
};
typedef mpl::bool_<value> type;
};
# if !defined(BOOST_NO_SFINAE) && !defined(BOOST_NO_IS_CONVERTIBLE)
template <class L, class R, class T>
struct enable_binary
: boost::iterators::enable_if<is_object_operators<L,R>, T>
{};
# define BOOST_PYTHON_BINARY_RETURN(T) typename enable_binary<L,R,T>::type
# else
# define BOOST_PYTHON_BINARY_RETURN(T) T
# endif
template <class U>
object object_operators<U>::operator()() const
{
object_cref2 f = *static_cast<U const*>(this);
return call<object>(f.ptr());
}
template <class U>
inline
object_operators<U>::operator bool_type() const
{
object_cref2 x = *static_cast<U const*>(this);
int is_true = PyObject_IsTrue(x.ptr());
if (is_true < 0) throw_error_already_set();
return is_true ? &object::ptr : 0;
}
template <class U>
inline bool
object_operators<U>::operator!() const
{
object_cref2 x = *static_cast<U const*>(this);
int is_true = PyObject_IsTrue(x.ptr());
if (is_true < 0) throw_error_already_set();
return !is_true;
}
# define BOOST_PYTHON_COMPARE_OP(op, opid) \
template <class L, class R> \
BOOST_PYTHON_BINARY_RETURN(object) operator op(L const& l, R const& r) \
{ \
return PyObject_RichCompare( \
object(l).ptr(), object(r).ptr(), opid); \
}
# undef BOOST_PYTHON_COMPARE_OP
# define BOOST_PYTHON_BINARY_OPERATOR(op) \
BOOST_PYTHON_DECL object operator op(object const& l, object const& r); \
template <class L, class R> \
BOOST_PYTHON_BINARY_RETURN(object) operator op(L const& l, R const& r) \
{ \
return object(l) op object(r); \
}
BOOST_PYTHON_BINARY_OPERATOR(>)
BOOST_PYTHON_BINARY_OPERATOR(>=)
BOOST_PYTHON_BINARY_OPERATOR(<)
BOOST_PYTHON_BINARY_OPERATOR(<=)
BOOST_PYTHON_BINARY_OPERATOR(==)
BOOST_PYTHON_BINARY_OPERATOR(!=)
BOOST_PYTHON_BINARY_OPERATOR(+)
BOOST_PYTHON_BINARY_OPERATOR(-)
BOOST_PYTHON_BINARY_OPERATOR(*)
BOOST_PYTHON_BINARY_OPERATOR(/)
BOOST_PYTHON_BINARY_OPERATOR(%)
BOOST_PYTHON_BINARY_OPERATOR(<<)
BOOST_PYTHON_BINARY_OPERATOR(>>)
BOOST_PYTHON_BINARY_OPERATOR(&)
BOOST_PYTHON_BINARY_OPERATOR(^)
BOOST_PYTHON_BINARY_OPERATOR(|)
# undef BOOST_PYTHON_BINARY_OPERATOR
# define BOOST_PYTHON_INPLACE_OPERATOR(op) \
BOOST_PYTHON_DECL object& operator op(object& l, object const& r); \
template <class R> \
object& operator op(object& l, R const& r) \
{ \
return l op object(r); \
}
BOOST_PYTHON_INPLACE_OPERATOR(+=)
BOOST_PYTHON_INPLACE_OPERATOR(-=)
BOOST_PYTHON_INPLACE_OPERATOR(*=)
BOOST_PYTHON_INPLACE_OPERATOR(/=)
BOOST_PYTHON_INPLACE_OPERATOR(%=)
BOOST_PYTHON_INPLACE_OPERATOR(<<=)
BOOST_PYTHON_INPLACE_OPERATOR(>>=)
BOOST_PYTHON_INPLACE_OPERATOR(&=)
BOOST_PYTHON_INPLACE_OPERATOR(^=)
BOOST_PYTHON_INPLACE_OPERATOR(|=)
# undef BOOST_PYTHON_INPLACE_OPERATOR
}}} // namespace boost::python
#include <boost/iterator/detail/config_undef.hpp>
#endif // OBJECT_OPERATORS_DWA2002617_HPP
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