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#include "Python.h"
#if PY_MAJOR_VERSION >= 3
#define PyInt_CheckExact PyLong_CheckExact
#endif
typedef struct CmpObject {
PyObject_HEAD
} CmpObject;
static PyObject* cmp_richcmp(PyObject *self, PyObject *other, int opid) {
long val;
if ((opid != Py_EQ && opid != Py_NE) || !PyInt_CheckExact(other)) {
Py_INCREF(Py_NotImplemented);
return Py_NotImplemented;
}
val = PyLong_AsLong(other);
if (opid == Py_EQ) {
return PyBool_FromLong(val == 3);
}
else if (opid == Py_NE) {
return PyBool_FromLong(val != 3);
}
return Py_NotImplemented;
}
static long cmp_hashfunc(PyObject *self) {
return 3;
}
PyTypeObject CmpType = {
PyVarObject_HEAD_INIT(NULL, 0)
"comparisons.CmpType", /* tp_name */
sizeof(CmpObject), /* tp_basicsize */
0, /* tp_itemsize */
0, /* tp_dealloc */
0, /* tp_print */
0, /* tp_getattr */
0, /* tp_setattr */
0, /* tp_compare */
0, /* tp_repr */
0, /* tp_as_number */
0, /* tp_as_sequence */
0, /* tp_as_mapping */
cmp_hashfunc, /* tp_hash */
0, /* tp_call */
0, /* tp_str */
0, /* tp_getattro */
0, /* tp_setattro */
0, /* tp_as_buffer */
Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE, /* tp_flags */
0, /* tp_doc */
(traverseproc)0, /* tp_traverse */
0, /* tp_clear */
(richcmpfunc)cmp_richcmp, /* tp_richcompare */
0, /* tp_weaklistoffset */
0, /* tp_iter */
0, /* tp_iternext */
0, /* tp_methods */
0, /* tp_members */
0, /* tp_getset */
0, /* tp_base */
0, /* tp_dict */
0, /* tp_descr_get */
0, /* tp_descr_set */
0, /* tp_dictoffset */
0, /* tp_init */
0, /* tp_alloc */
PyType_GenericNew, /* tp_new */
0 /* tp_free */
};
static struct PyModuleDef moduledef = {
PyModuleDef_HEAD_INIT,
"comparisons",
"Module Doc",
-1,
NULL
};
PyMODINIT_FUNC
PyInit_comparisons(void)
{
PyObject *m, *d;
if (PyType_Ready(&CmpType) < 0)
return NULL;
m = PyModule_Create(&moduledef);
if (m == NULL)
return NULL;
d = PyModule_GetDict(m);
if (d == NULL)
return NULL;
if (PyDict_SetItemString(d, "CmpType", (PyObject *)&CmpType) < 0)
return NULL;
return m;
}
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