Mercurial > cpython-lru_cache-weakref

annotate Include/tupleobject.h @ 49955:878d40468c4e legacy-trunk

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Issue #4384: Added logging integration with warnings module using captureWarnings(). This change includes a NullHandler which does nothing; it will be of use to library developers who want to avoid the "No handlers could be found for logger XXX" message which can appear if the library user doesn't configure logging.
author Vinay Sajip <vinay_sajip@yahoo.co.uk>
date Wed, 03 Dec 2008 23:22:58 +0000
parents 65ae68c7aca3
children 0e498a9fde3c
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2 /* Tuple object interface */
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4 #ifndef Py_TUPLEOBJECT_H
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5 #define Py_TUPLEOBJECT_H
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6 #ifdef __cplusplus
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7 extern "C" {
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8 #endif
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10 /*
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11 Another generally useful object type is a tuple of object pointers.
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12 For Python, this is an immutable type. C code can change the tuple items
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13 (but not their number), and even use tuples are general-purpose arrays of
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14 object references, but in general only brand new tuples should be mutated,
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15 not ones that might already have been exposed to Python code.
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17 *** WARNING *** PyTuple_SetItem does not increment the new item's reference
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18 count, but does decrement the reference count of the item it replaces,
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19 if not nil. It does *decrement* the reference count if it is *not*
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20 inserted in the tuple. Similarly, PyTuple_GetItem does not increment the
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21 returned item's reference count.
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22 */
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24 typedef struct {
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25 PyObject_VAR_HEAD
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26 PyObject *ob_item[1];
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28 /* ob_item contains space for 'ob_size' elements.
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29 * Items must normally not be NULL, except during construction when
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30 * the tuple is not yet visible outside the function that builds it.
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31 */
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32 } PyTupleObject;
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34 PyAPI_DATA(PyTypeObject) PyTuple_Type;
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36 #define PyTuple_Check(op) \
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37 PyType_FastSubclass(Py_TYPE(op), Py_TPFLAGS_TUPLE_SUBCLASS)
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38 #define PyTuple_CheckExact(op) (Py_TYPE(op) == &PyTuple_Type)
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40 PyAPI_FUNC(PyObject *) PyTuple_New(Py_ssize_t size);
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41 PyAPI_FUNC(Py_ssize_t) PyTuple_Size(PyObject *);
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42 PyAPI_FUNC(PyObject *) PyTuple_GetItem(PyObject *, Py_ssize_t);
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43 PyAPI_FUNC(int) PyTuple_SetItem(PyObject *, Py_ssize_t, PyObject *);
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44 PyAPI_FUNC(PyObject *) PyTuple_GetSlice(PyObject *, Py_ssize_t, Py_ssize_t);
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45 PyAPI_FUNC(int) _PyTuple_Resize(PyObject **, Py_ssize_t);
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46 PyAPI_FUNC(PyObject *) PyTuple_Pack(Py_ssize_t, ...);
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48 /* Macro, trading safety for speed */
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49 #define PyTuple_GET_ITEM(op, i) (((PyTupleObject *)(op))->ob_item[i])
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50 #define PyTuple_GET_SIZE(op) Py_SIZE(op)
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52 /* Macro, *only* to be used to fill in brand new tuples */
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53 #define PyTuple_SET_ITEM(op, i, v) (((PyTupleObject *)(op))->ob_item[i] = v)
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55 PyAPI_FUNC(int) PyTuple_ClearFreeList(void);
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57 #ifdef __cplusplus
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58 }
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59 #endif
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60 #endif /* !Py_TUPLEOBJECT_H */