blob: b61adf61923f003d0b8b43212a2120fb76f59fbd (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
|
/* Barebones heap implementation supporting only insert and pop.
Copyright (C) 2010 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
/* Full implementation: GDSL (http://gna.org/projects/gdsl/) by Nicolas
Darnis <ndarnis@free.fr>. Adapted by Gene Auyeung. */
#include <stddef.h>
struct heap
{
void **array; /* array[0] is not used */
size_t capacity; /* Array size */
size_t count; /* Used as index to last element. Also is num of items. */
int (*compare) (void const *, void const *);
};
struct heap *heap_alloc (int (*) (void const *, void const *), size_t);
void heap_free (struct heap *);
int heap_insert (struct heap *heap, void *item);
void *heap_remove_top (struct heap *heap);
|
