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/Include/bytearrayobject.h

http://unladen-swallow.googlecode.com/
C++ Header | 53 lines | 28 code | 9 blank | 16 comment | 1 complexity | 55f71a745da9563758354e7a9da26037 MD5 | raw file
 1/* ByteArray object interface */
 2
 3#ifndef Py_BYTEARRAYOBJECT_H
 4#define Py_BYTEARRAYOBJECT_H
 5#ifdef __cplusplus
 6extern "C" {
 7#endif
 8
 9#include <stdarg.h>
10
11/* Type PyByteArrayObject represents a mutable array of bytes.
12 * The Python API is that of a sequence;
13 * the bytes are mapped to ints in [0, 256).
14 * Bytes are not characters; they may be used to encode characters.
15 * The only way to go between bytes and str/unicode is via encoding
16 * and decoding.
17 * For the convenience of C programmers, the bytes type is considered
18 * to contain a char pointer, not an unsigned char pointer.
19 */
20
21/* Object layout */
22typedef struct {
23    PyObject_VAR_HEAD
24    /* XXX(nnorwitz): should ob_exports be Py_ssize_t? */
25    int ob_exports; /* how many buffer exports */
26    Py_ssize_t ob_alloc; /* How many bytes allocated */
27    char *ob_bytes;
28} PyByteArrayObject;
29
30/* Type object */
31PyAPI_DATA(PyTypeObject) PyByteArray_Type;
32PyAPI_DATA(PyTypeObject) PyByteArrayIter_Type;
33
34/* Type check macros */
35#define PyByteArray_Check(self) PyObject_TypeCheck(self, &PyByteArray_Type)
36#define PyByteArray_CheckExact(self) (Py_TYPE(self) == &PyByteArray_Type)
37
38/* Direct API functions */
39PyAPI_FUNC(PyObject *) PyByteArray_FromObject(PyObject *);
40PyAPI_FUNC(PyObject *) PyByteArray_Concat(PyObject *, PyObject *);
41PyAPI_FUNC(PyObject *) PyByteArray_FromStringAndSize(const char *, Py_ssize_t);
42PyAPI_FUNC(Py_ssize_t) PyByteArray_Size(PyObject *);
43PyAPI_FUNC(char *) PyByteArray_AsString(PyObject *);
44PyAPI_FUNC(int) PyByteArray_Resize(PyObject *, Py_ssize_t);
45
46/* Macros, trading safety for speed */
47#define PyByteArray_AS_STRING(self) (assert(PyByteArray_Check(self)),((PyByteArrayObject *)(self))->ob_bytes)
48#define PyByteArray_GET_SIZE(self)  (assert(PyByteArray_Check(self)),Py_SIZE(self))
49
50#ifdef __cplusplus
51}
52#endif
53#endif /* !Py_BYTEARRAYOBJECT_H */