/**
* 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
* .
*
* (c) Vincenzo Nicosia 2009-2017 --
*
* This file is part of NetBunch, a package for complex network
* analysis and modelling. For more information please visit:
*
* http://www.complex-networks.net/
*
* If you use this software, please add a reference to
*
* V. Latora, V. Nicosia, G. Russo
* "Complex Networks: Principles, Methods and Applications"
* Cambridge University Press (2017)
* ISBN: 9781107103184
*
***********************************************************************
*/
#ifndef __GEN_HEAP__
#define __GEN_HEAP__
#define MAX_HEAP 0x01
#define MIN_HEAP 0x02
#define SORT_ASC 0x04
#define SORT_DESC 0x08
#define ERR_DELETE -0x04
typedef struct{
int (*compare)(const void *e1, const void *e2);
void* (*alloc_vector)(unsigned int N);
void (*dealloc_vector)(void *v);
void (*dealloc_elem)(void *e);
void (*print_elem)(void *e);
} gen_heap_func_t;
typedef struct{
int N;
int last;
void **v;
gen_heap_func_t funs;
char htype;
} gen_heap_t;
#define PARENT(i) (int)(floor((i-1)/2))
gen_heap_t * gen_heap_init(unsigned int N, char htype, gen_heap_func_t *funs);
void gen_heap_insert(gen_heap_t *h, void *elem);
int gen_heap_delete(gen_heap_t *h, void **val);
void* gen_heap_peek(gen_heap_t *h);
gen_heap_t* gen_heap_from_array(void **v, unsigned int N, unsigned int last, char htype,
gen_heap_func_t *funs);
void gen_heap_dump(gen_heap_t *h);
void gen_heap_destroy(gen_heap_t *h);
int gen_heap_sort(void *v, unsigned int N, size_t size,
char dir, int (*compar)(const void*, const void*));
#endif // __GEN_HEAP__