boolobject.h
/* Boolean object interface */
#ifndef Py_BOOLOBJECT_H
#define Py_BOOLOBJECT_H
#ifdef __cplusplus
extern "C" {
#endif
PyAPI_DATA(PyTypeObject) PyBool_Type;
#define PyBool_Check(x) (Py_TYPE(x) == &PyBool_Type)
/* Py_False and Py_True are the only two bools in existence.
Don't forget to apply Py_INCREF() when returning either!!! */
/* Don't use these directly */
PyAPI_DATA(struct _longobject) _Py_FalseStruct, _Py_TrueStruct;
/* Use these macros */
#define Py_False ((PyObject *) &_Py_FalseStruct)
#define Py_True ((PyObject *) &_Py_TrueStruct)
/* Macros for returning Py_True or Py_False, respectively */
#define Py_RETURN_TRUE return Py_INCREF(Py_True), Py_True
#define Py_RETURN_FALSE return Py_INCREF(Py_False), Py_False
/* Function to return a bool from a C long */
PyAPI_FUNC(PyObject *) PyBool_FromLong(long);
#ifdef __cplusplus
}
#endif
#endif /* !Py_BOOLOBJECT_H */