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/* List object interface */
/*
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Another generally useful object type is an list of object pointers.
This is a mutable type: the list items can be changed, and items can be
added or removed. Out-of-range indices or non-list objects are ignored.
*** WARNING *** setlistitem does not increment the new item's reference
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 list. Similarly, getlistitem does not increment the
returned item's reference count.
*/
extern typeobject Listtype;
#define is_listobject(op) ((op)->ob_type == &Listtype)
extern object *newlistobject PROTO((int size));
extern int getlistsize PROTO((object *));
extern object *getlistitem PROTO((object *, int));
extern int setlistitem PROTO((object *, int, object *));
extern int inslistitem PROTO((object *, int, object *));
extern int addlistitem PROTO((object *, object *));
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