cpython/Include/tupleobject.h

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/* Tuple object interface */
#ifndef Py_TUPLEOBJECT_H
#define Py_TUPLEOBJECT_H
#ifdef __cplusplus
extern "C" {
#endif
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/*
Another generally useful object type is a tuple of object pointers.
For Python, this is an immutable type. C code can change the tuple items
(but not their number), and even use tuples are general-purpose arrays of
object references, but in general only brand new tuples should be mutated,
not ones that might already have been exposed to Python code.
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*** WARNING *** PyTuple_SetItem does not increment the new item's reference
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count, but does decrement the reference count of the item it replaces,
if not nil. It does *decrement* the reference count if it is *not*
inserted in the tuple. Similarly, PyTuple_GetItem does not increment the
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returned item's reference count.
*/
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typedef struct {
PyObject_VAR_HEAD
PyObject *ob_item[1];
/* ob_item contains space for 'ob_size' elements.
* Items must normally not be NULL, except during construction when
* the tuple is not yet visible outside the function that builds it.
*/
} PyTupleObject;
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PyAPI_DATA(PyTypeObject) PyTuple_Type;
PyAPI_DATA(PyTypeObject) PyTupleIter_Type;
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Merged revisions 53875-53911 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ........ r53899 | neal.norwitz | 2007-02-25 16:52:27 +0100 (Sun, 25 Feb 2007) | 1 line Add more details when releasing interned strings ........ r53900 | neal.norwitz | 2007-02-25 16:53:36 +0100 (Sun, 25 Feb 2007) | 1 line Whitespace only changes ........ r53901 | jeremy.hylton | 2007-02-25 16:57:45 +0100 (Sun, 25 Feb 2007) | 8 lines Fix crash in exec when unicode filename can't be decoded. I can't think of an easy way to test this behavior. It only occurs when the file system default encoding and the interpreter default encoding are different, such that you can open the file but not decode its name. ........ r53902 | jeremy.hylton | 2007-02-25 17:01:58 +0100 (Sun, 25 Feb 2007) | 2 lines Put declarations before code. ........ r53910 | fred.drake | 2007-02-25 18:56:27 +0100 (Sun, 25 Feb 2007) | 3 lines - SF patch #1657613: add documentation for the Element interface - clean up bogus use of the {datadescni} environment everywhere ........ r53911 | neal.norwitz | 2007-02-25 20:44:48 +0100 (Sun, 25 Feb 2007) | 17 lines Variation of patch # 1624059 to speed up checking if an object is a subclass of some of the common builtin types. Use a bit in tp_flags for each common builtin type. Check the bit to determine if any instance is a subclass of these common types. The check avoids a function call and O(n) search of the base classes. The check is done in the various Py*_Check macros rather than calling PyType_IsSubtype(). All the bits are set in tp_flags when the type is declared in the Objects/*object.c files because PyType_Ready() is not called for all the types. Should PyType_Ready() be called for all types? If so and the change is made, the changes to the Objects/*object.c files can be reverted (remove setting the tp_flags). Objects/typeobject.c would also have to be modified to add conditions for Py*_CheckExact() in addition to each the PyType_IsSubtype check. ........
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#define PyTuple_Check(op) \
PyType_FastSubclass(Py_TYPE(op), Py_TPFLAGS_TUPLE_SUBCLASS)
#define PyTuple_CheckExact(op) (Py_TYPE(op) == &PyTuple_Type)
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PyAPI_FUNC(PyObject *) PyTuple_New(Py_ssize_t size);
PyAPI_FUNC(Py_ssize_t) PyTuple_Size(PyObject *);
PyAPI_FUNC(PyObject *) PyTuple_GetItem(PyObject *, Py_ssize_t);
PyAPI_FUNC(int) PyTuple_SetItem(PyObject *, Py_ssize_t, PyObject *);
PyAPI_FUNC(PyObject *) PyTuple_GetSlice(PyObject *, Py_ssize_t, Py_ssize_t);
PyAPI_FUNC(int) _PyTuple_Resize(PyObject **, Py_ssize_t);
PyAPI_FUNC(PyObject *) PyTuple_Pack(Py_ssize_t, ...);
PyAPI_FUNC(void) _PyTuple_MaybeUntrack(PyObject *);
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/* Macro, trading safety for speed */
#define PyTuple_GET_ITEM(op, i) (((PyTupleObject *)(op))->ob_item[i])
#define PyTuple_GET_SIZE(op) Py_SIZE(op)
/* Macro, *only* to be used to fill in brand new tuples */
#define PyTuple_SET_ITEM(op, i, v) (((PyTupleObject *)(op))->ob_item[i] = v)
Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60569,60571-60572,60574,60576-60583,60585-60586,60589,60591,60594-60595,60597-60598,60600-60601,60606-60612,60615,60617,60619-60621,60623-60625,60627-60629,60631,60633,60635,60647,60650,60652,60654,60656,60658-60659,60664-60666,60668-60670,60672,60676,60678,60680-60683,60685-60686,60688,60690,60692-60694,60697-60700,60705-60706,60708,60711,60714,60720,60724-60730,60732,60736,60742,60744,60746,60748,60750-60751,60753,60756-60757,60759-60761,60763-60764,60766,60769-60770,60774-60784,60787-60845 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ........ r60790 | raymond.hettinger | 2008-02-14 10:32:45 +0100 (Thu, 14 Feb 2008) | 4 lines Add diagnostic message to help figure-out why SocketServer tests occasionally crash when trying to remove a pid that in not in the activechildren list. ........ r60791 | raymond.hettinger | 2008-02-14 11:46:57 +0100 (Thu, 14 Feb 2008) | 1 line Add fixed-point examples to the decimal FAQ ........ r60792 | raymond.hettinger | 2008-02-14 12:01:10 +0100 (Thu, 14 Feb 2008) | 1 line Improve rst markup ........ r60794 | raymond.hettinger | 2008-02-14 12:57:25 +0100 (Thu, 14 Feb 2008) | 1 line Show how to remove exponents. ........ r60795 | raymond.hettinger | 2008-02-14 13:05:42 +0100 (Thu, 14 Feb 2008) | 1 line Fix markup. ........ r60797 | christian.heimes | 2008-02-14 13:47:33 +0100 (Thu, 14 Feb 2008) | 1 line Implemented Martin's suggestion to clear the free lists during the garbage collection of the highest generation. ........ r60798 | raymond.hettinger | 2008-02-14 13:49:37 +0100 (Thu, 14 Feb 2008) | 1 line Simplify moneyfmt() recipe. ........ r60810 | raymond.hettinger | 2008-02-14 20:02:39 +0100 (Thu, 14 Feb 2008) | 1 line Fix markup ........ r60811 | raymond.hettinger | 2008-02-14 20:30:30 +0100 (Thu, 14 Feb 2008) | 1 line No need to register subclass of ABCs. ........ r60814 | thomas.heller | 2008-02-14 22:00:28 +0100 (Thu, 14 Feb 2008) | 1 line Try to correct a markup error that does hide the following paragraph. ........ r60822 | christian.heimes | 2008-02-14 23:40:11 +0100 (Thu, 14 Feb 2008) | 1 line Use a static and interned string for __subclasscheck__ and __instancecheck__ as suggested by Thomas Heller in #2115 ........ r60827 | christian.heimes | 2008-02-15 07:57:08 +0100 (Fri, 15 Feb 2008) | 1 line Fixed repr() and str() of complex numbers. Complex suffered from the same problem as floats but I forgot to test and fix them. ........ r60830 | christian.heimes | 2008-02-15 09:20:11 +0100 (Fri, 15 Feb 2008) | 2 lines Bug #2111: mmap segfaults when trying to write a block opened with PROT_READ Thanks to Thomas Herve for the fix. ........ r60835 | eric.smith | 2008-02-15 13:14:32 +0100 (Fri, 15 Feb 2008) | 1 line In PyNumber_ToBase, changed from an assert to returning an error when PyObject_Index() returns something other than an int or long. It should never be possible to trigger this, as PyObject_Index checks to make sure it returns an int or long. ........ r60837 | skip.montanaro | 2008-02-15 20:03:59 +0100 (Fri, 15 Feb 2008) | 8 lines Two new functions: * place_summary_first copies the regrtest summary to the front of the file making it easier to scan quickly for problems. * count_failures gets the actual count of the number of failing tests, not just a 1 (some failures) or 0 (no failures). ........ r60840 | raymond.hettinger | 2008-02-15 22:21:25 +0100 (Fri, 15 Feb 2008) | 1 line Update example to match the current syntax. ........ r60841 | amaury.forgeotdarc | 2008-02-15 22:22:45 +0100 (Fri, 15 Feb 2008) | 8 lines Issue #2115: __slot__ attributes setting was 10x slower. Also correct a possible crash using ABCs. This change is exactly the same as an optimisation done 5 years ago, but on slot *access*: http://svn.python.org/view?view=rev&rev=28297 ........ r60842 | amaury.forgeotdarc | 2008-02-15 22:27:44 +0100 (Fri, 15 Feb 2008) | 2 lines Temporarily let these tests pass ........ r60843 | kurt.kaiser | 2008-02-15 22:56:36 +0100 (Fri, 15 Feb 2008) | 2 lines ScriptBinding event handlers weren't returning 'break'. Patch 2050, Tal Einat. ........ r60844 | kurt.kaiser | 2008-02-15 23:25:09 +0100 (Fri, 15 Feb 2008) | 4 lines Configured selection highlighting colors were ignored; updating highlighting in the config dialog would cause non-Python files to be colored as if they were Python source; improve use of ColorDelagator. Patch 1334. Tal Einat. ........ r60845 | amaury.forgeotdarc | 2008-02-15 23:44:20 +0100 (Fri, 15 Feb 2008) | 9 lines Re-enable tests, they were failing since gc.collect() clears the various freelists. They still remain fragile. For example, a call to assertEqual currently does not make any allocation (which surprised me at first). But this can change when gc.collect also deletes the numerous "zombie frames" attached to each function. ........
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PyAPI_FUNC(int) PyTuple_ClearFreeList(void);
#ifdef __cplusplus
}
#endif
#endif /* !Py_TUPLEOBJECT_H */