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annotate Include/tupleobject.h @ 78335:fd5166fdb978 3.2

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Issue #12288: Consider '0' and '0.0' as valid initialvalue for tkinter SimpleDialog.
author Andrew Svetlov <andrew.svetlov@gmail.com>
date Mon, 30 Jul 2012 19:59:53 +0300
parents 62b61abd02b8
children d63a80abfbec
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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 #ifndef Py_LIMITED_API
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25 typedef struct {
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26 PyObject_VAR_HEAD
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27 PyObject *ob_item[1];
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28
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29 /* ob_item contains space for 'ob_size' elements.
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30 * Items must normally not be NULL, except during construction when
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31 * the tuple is not yet visible outside the function that builds it.
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32 */
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33 } PyTupleObject;
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34 #endif
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35
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36 PyAPI_DATA(PyTypeObject) PyTuple_Type;
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37 PyAPI_DATA(PyTypeObject) PyTupleIter_Type;
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39 #define PyTuple_Check(op) \
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40 PyType_FastSubclass(Py_TYPE(op), Py_TPFLAGS_TUPLE_SUBCLASS)
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41 #define PyTuple_CheckExact(op) (Py_TYPE(op) == &PyTuple_Type)
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43 PyAPI_FUNC(PyObject *) PyTuple_New(Py_ssize_t size);
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44 PyAPI_FUNC(Py_ssize_t) PyTuple_Size(PyObject *);
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45 PyAPI_FUNC(PyObject *) PyTuple_GetItem(PyObject *, Py_ssize_t);
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46 PyAPI_FUNC(int) PyTuple_SetItem(PyObject *, Py_ssize_t, PyObject *);
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47 PyAPI_FUNC(PyObject *) PyTuple_GetSlice(PyObject *, Py_ssize_t, Py_ssize_t);
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48 #ifndef Py_LIMITED_API
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49 PyAPI_FUNC(int) _PyTuple_Resize(PyObject **, Py_ssize_t);
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50 #endif
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51 PyAPI_FUNC(PyObject *) PyTuple_Pack(Py_ssize_t, ...);
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52 #ifndef Py_LIMITED_API
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53 PyAPI_FUNC(void) _PyTuple_MaybeUntrack(PyObject *);
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54 #endif
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55
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56 /* Macro, trading safety for speed */
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57 #ifndef Py_LIMITED_API
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58 #define PyTuple_GET_ITEM(op, i) (((PyTupleObject *)(op))->ob_item[i])
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59 #define PyTuple_GET_SIZE(op) Py_SIZE(op)
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61 /* Macro, *only* to be used to fill in brand new tuples */
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62 #define PyTuple_SET_ITEM(op, i, v) (((PyTupleObject *)(op))->ob_item[i] = v)
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63 #endif
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65 PyAPI_FUNC(int) PyTuple_ClearFreeList(void);
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67 #ifdef __cplusplus
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68 }
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69 #endif
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70 #endif /* !Py_TUPLEOBJECT_H */