projects / ceph.git / blame
| Commit | Line | Data |
|---|---|---|
| 7c673cae FG |
1 | // Copyright David Abrahams 2002. |
| 2 | // Distributed under the Boost Software License, Version 1.0. (See | |
| 3 | // accompanying file LICENSE_1_0.txt or copy at | |
| 4 | // http://www.boost.org/LICENSE_1_0.txt) | |
| 5 | #ifndef OBJECT_OPERATORS_DWA2002617_HPP | |
| 6 | # define OBJECT_OPERATORS_DWA2002617_HPP | |
| 7 | ||
| 8 | # include <boost/python/detail/prefix.hpp> | |
| 9 | ||
| 10 | # include <boost/python/object_core.hpp> | |
| 11 | # include <boost/python/call.hpp> | |
| 12 | # include <boost/iterator/detail/enable_if.hpp> | |
| 13 | # include <boost/mpl/bool.hpp> | |
| 14 | ||
| 15 | # include <boost/iterator/detail/config_def.hpp> | |
| 16 | ||
| 17 | namespace boost { namespace python { namespace api { | |
| 18 | ||
| 19 | template <class X> | |
| 20 | char is_object_operators_helper(object_operators<X> const*); | |
| 21 | ||
| 22 | typedef char (&no_type)[2]; | |
| 23 | no_type is_object_operators_helper(...); | |
| 24 | ||
| 25 | template <class X> X* make_ptr(); | |
| 26 | ||
| 27 | template <class L, class R = L> | |
| 28 | struct is_object_operators | |
| 29 | { | |
| 30 | enum { | |
| 31 | value | |
| 32 | = (sizeof(api::is_object_operators_helper(api::make_ptr<L>())) | |
| 33 | + sizeof(api::is_object_operators_helper(api::make_ptr<R>())) | |
| 34 | < 4 | |
| 35 | ) | |
| 36 | }; | |
| 37 | typedef mpl::bool_<value> type; | |
| 38 | }; | |
| 39 | ||
| 40 | # if !defined(BOOST_NO_SFINAE) && !defined(BOOST_NO_IS_CONVERTIBLE) | |
| 41 | template <class L, class R, class T> | |
| 42 | struct enable_binary | |
| 43 | : boost::iterators::enable_if<is_object_operators<L,R>, T> | |
| 44 | {}; | |
| 45 | # define BOOST_PYTHON_BINARY_RETURN(T) typename enable_binary<L,R,T>::type | |
| 46 | # else | |
| 47 | # define BOOST_PYTHON_BINARY_RETURN(T) T | |
| 48 | # endif | |
| 49 | ||
| 50 | template <class U> | |
| 51 | object object_operators<U>::operator()() const | |
| 52 | { | |
| 53 | object_cref2 f = *static_cast<U const*>(this); | |
| 54 | return call<object>(f.ptr()); | |
| 55 | } | |
| 56 | ||
| 57 | ||
| 58 | template <class U> | |
| 59 | inline | |
| 60 | object_operators<U>::operator bool_type() const | |
| 61 | { | |
| 62 | object_cref2 x = *static_cast<U const*>(this); | |
| 63 | int is_true = PyObject_IsTrue(x.ptr()); | |
| 64 | if (is_true < 0) throw_error_already_set(); | |
| 65 | return is_true ? &object::ptr : 0; | |
| 66 | } | |
| 67 | ||
| 68 | template <class U> | |
| 69 | inline bool | |
| 70 | object_operators<U>::operator!() const | |
| 71 | { | |
| 72 | object_cref2 x = *static_cast<U const*>(this); | |
| 73 | int is_true = PyObject_IsTrue(x.ptr()); | |
| 74 | if (is_true < 0) throw_error_already_set(); | |
| 75 | return !is_true; | |
| 76 | } | |
| 77 | ||
| 78 | # define BOOST_PYTHON_COMPARE_OP(op, opid) \ | |
| 79 | template <class L, class R> \ | |
| 80 | BOOST_PYTHON_BINARY_RETURN(object) operator op(L const& l, R const& r) \ | |
| 81 | { \ | |
| 82 | return PyObject_RichCompare( \ | |
| 83 | object(l).ptr(), object(r).ptr(), opid); \ | |
| 84 | } | |
| 85 | # undef BOOST_PYTHON_COMPARE_OP | |
| 86 | ||
| 87 | # define BOOST_PYTHON_BINARY_OPERATOR(op) \ | |
| 88 | BOOST_PYTHON_DECL object operator op(object const& l, object const& r); \ | |
| 89 | template <class L, class R> \ | |
| 90 | BOOST_PYTHON_BINARY_RETURN(object) operator op(L const& l, R const& r) \ | |
| 91 | { \ | |
| 92 | return object(l) op object(r); \ | |
| 93 | } | |
| 94 | BOOST_PYTHON_BINARY_OPERATOR(>) | |
| 95 | BOOST_PYTHON_BINARY_OPERATOR(>=) | |
| 96 | BOOST_PYTHON_BINARY_OPERATOR(<) | |
| 97 | BOOST_PYTHON_BINARY_OPERATOR(<=) | |
| 98 | BOOST_PYTHON_BINARY_OPERATOR(==) | |
| 99 | BOOST_PYTHON_BINARY_OPERATOR(!=) | |
| 100 | BOOST_PYTHON_BINARY_OPERATOR(+) | |
| 101 | BOOST_PYTHON_BINARY_OPERATOR(-) | |
| 102 | BOOST_PYTHON_BINARY_OPERATOR(*) | |
| 103 | BOOST_PYTHON_BINARY_OPERATOR(/) | |
| 104 | BOOST_PYTHON_BINARY_OPERATOR(%) | |
| 105 | BOOST_PYTHON_BINARY_OPERATOR(<<) | |
| 106 | BOOST_PYTHON_BINARY_OPERATOR(>>) | |
| 107 | BOOST_PYTHON_BINARY_OPERATOR(&) | |
| 108 | BOOST_PYTHON_BINARY_OPERATOR(^) | |
| 109 | BOOST_PYTHON_BINARY_OPERATOR(|) | |
| 110 | # undef BOOST_PYTHON_BINARY_OPERATOR | |
| 111 | ||
| 112 | ||
| 113 | # define BOOST_PYTHON_INPLACE_OPERATOR(op) \ | |
| 114 | BOOST_PYTHON_DECL object& operator op(object& l, object const& r); \ | |
| 115 | template <class R> \ | |
| 116 | object& operator op(object& l, R const& r) \ | |
| 117 | { \ | |
| 118 | return l op object(r); \ | |
| 119 | } | |
| 120 | BOOST_PYTHON_INPLACE_OPERATOR(+=) | |
| 121 | BOOST_PYTHON_INPLACE_OPERATOR(-=) | |
| 122 | BOOST_PYTHON_INPLACE_OPERATOR(*=) | |
| 123 | BOOST_PYTHON_INPLACE_OPERATOR(/=) | |
| 124 | BOOST_PYTHON_INPLACE_OPERATOR(%=) | |
| 125 | BOOST_PYTHON_INPLACE_OPERATOR(<<=) | |
| 126 | BOOST_PYTHON_INPLACE_OPERATOR(>>=) | |
| 127 | BOOST_PYTHON_INPLACE_OPERATOR(&=) | |
| 128 | BOOST_PYTHON_INPLACE_OPERATOR(^=) | |
| 129 | BOOST_PYTHON_INPLACE_OPERATOR(|=) | |
| 130 | # undef BOOST_PYTHON_INPLACE_OPERATOR | |
| 131 | ||
| 132 | }}} // namespace boost::python | |
| 133 | ||
| 134 | #include <boost/iterator/detail/config_undef.hpp> | |
| 135 | ||
| 136 | #endif // OBJECT_OPERATORS_DWA2002617_HPP |