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Document what the members of PyListObject are used for, and the crucial

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invariants they must satisfy.
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Tim Peters 2004-07-29 03:29:15 +00:00
parent b38e2b61b3
commit a995a2dd54
1 changed files with 9 additions and 0 deletions
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9
Include/listobject.h
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@ -21,7 +21,16 @@ extern "C" {
typedef struct { typedef struct {
PyObject_VAR_HEAD PyObject_VAR_HEAD
/* Vector of pointers to list elements. list[0] is ob_item{0], etc. */
PyObject **ob_item; PyObject **ob_item;
/* ob_item contains space for 'allocated' elements. The number
* currently in use is ob_size.
* Invariants:
* 0 <= ob_size <= allocated
* len(list) == ob_size
* ob_item == NULL implies ob_size == allocated == 0
*/
int allocated; int allocated;
} PyListObject; } PyListObject;