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The C and C++ Include Header Files

cat -n /usr/include/python3.14/cpython/cellobject.h

     1	/* Cell object interface */
     2	
     3	#ifndef Py_LIMITED_API
     4	#ifndef Py_CELLOBJECT_H
     5	#define Py_CELLOBJECT_H
     6	#ifdef __cplusplus
     7	extern "C" {
     8	#endif
     9	
    10	typedef struct {
    11	    PyObject_HEAD
    12	    /* Content of the cell or NULL when empty */
    13	    PyObject *ob_ref;
    14	} PyCellObject;
    15	
    16	PyAPI_DATA(PyTypeObject) PyCell_Type;
    17	
    18	#define PyCell_Check(op) Py_IS_TYPE((op), &PyCell_Type)
    19	
    20	PyAPI_FUNC(PyObject *) PyCell_New(PyObject *);
    21	PyAPI_FUNC(PyObject *) PyCell_Get(PyObject *);
    22	PyAPI_FUNC(int) PyCell_Set(PyObject *, PyObject *);
    23	
    24	static inline PyObject* PyCell_GET(PyObject *op) {
    25	    PyObject *res;
    26	    PyCellObject *cell;
    27	    assert(PyCell_Check(op));
    28	    cell = _Py_CAST(PyCellObject*, op);
    29	    Py_BEGIN_CRITICAL_SECTION(cell);
    30	    res = cell->ob_ref;
    31	    Py_END_CRITICAL_SECTION();
    32	    return res;
    33	}
    34	#define PyCell_GET(op) PyCell_GET(_PyObject_CAST(op))
    35	
    36	static inline void PyCell_SET(PyObject *op, PyObject *value) {
    37	    PyCellObject *cell;
    38	    assert(PyCell_Check(op));
    39	    cell = _Py_CAST(PyCellObject*, op);
    40	    Py_BEGIN_CRITICAL_SECTION(cell);
    41	    cell->ob_ref = value;
    42	    Py_END_CRITICAL_SECTION();
    43	}
    44	#define PyCell_SET(op, value) PyCell_SET(_PyObject_CAST(op), (value))
    45	
    46	#ifdef __cplusplus
    47	}
    48	#endif
    49	#endif /* !Py_TUPLEOBJECT_H */
    50	#endif /* Py_LIMITED_API */