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The C and C++ Include Header Files

/usr/include/python3.10/cpython/bytearrayobject.h


$ cat -n /usr/include/python3.10/cpython/bytearrayobject.h

     1	#ifndef Py_CPYTHON_BYTEARRAYOBJECT_H
     2	#  error "this header file must not be included directly"
     3	#endif
     4	
     5	/* Object layout */
     6	typedef struct {
     7	    PyObject_VAR_HEAD
     8	    Py_ssize_t ob_alloc;   /* How many bytes allocated in ob_bytes */
     9	    char *ob_bytes;        /* Physical backing buffer */
    10	    char *ob_start;        /* Logical start inside ob_bytes */
    11	    Py_ssize_t ob_exports; /* How many buffer exports */
    12	} PyByteArrayObject;
    13	
    14	/* Macros, trading safety for speed */
    15	#define PyByteArray_AS_STRING(self) \
    16	    (assert(PyByteArray_Check(self)), \
    17	     Py_SIZE(self) ? ((PyByteArrayObject *)(self))->ob_start : _PyByteArray_empty_string)
    18	#define PyByteArray_GET_SIZE(self) (assert(PyByteArray_Check(self)), Py_SIZE(self))
    19	
    20	PyAPI_DATA(char) _PyByteArray_empty_string[];