Name
pqueue_extract
Synopsis
int pqueue_extract(PQueue *pqueue, void **data);
Return Value
0 if extracting the element is successful, or -1 otherwise.
Description
Extracts the element at the top of the priority queue
specified by pqueue. Upon return,
data points to the data stored in the
element that was extracted. It is the responsibility of the caller
to manage the storage associated with the data.
Complexity
O (lg n), where n is the number of elements in the priority queue.
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