minpq.h File Reference
Functions and structures for implementing a minimizing priority queue.
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#include <stdlib.h>
Detailed Description
Functions and structures for implementing a minimizing priority queue.
Copyright (C) 2006-2010 Rob Hess <hess@eecs.oregonstate.edu>
- Version:
- 1.1.2-20100521
Function Documentation
int minpq_insert |
( |
struct min_pq * |
min_pq, |
|
|
void * |
data, |
|
|
int |
key | |
|
) |
| | |
Inserts an element into a minimizing priority queue.
- Parameters:
-
| min_pq | a minimizing priority queue |
| data | the data to be inserted |
| key | the key to be associated with data |
- Returns:
- Returns 0 on success or 1 on failure.
void* minpq_get_min |
( |
struct min_pq * |
min_pq |
) |
|
Returns the element of a minimizing priority queue with the smallest key without removing it from the queue.
- Parameters:
-
| min_pq | a minimizing priority queue |
- Returns:
- Returns the element of min_pq with the smallest key or NULL if min_pq is empty
void* minpq_extract_min |
( |
struct min_pq * |
min_pq |
) |
|
Removes and returns the element of a minimizing priority queue with the smallest key.
- Parameters:
-
| min_pq | a minimizing priority queue |
- Returns:
- Returns the element of min_pq with the smallest key of NULL if min_pq is empty
void minpq_release |
( |
struct min_pq ** |
min_pq |
) |
|
De-allocates the memory held by a minimizing priorioty queue.
- Parameters:
-
| min_pq | pointer to a minimizing priority queue |