1 files changed, 84 insertions, 0 deletions
diff --git a/src/include/gen_heap.h b/src/include/gen_heap.h
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+++ b/src/include/gen_heap.h
@@ -0,0 +1,84 @@
+/**
+ *  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/>.
+ *
+ *  (c) Vincenzo Nicosia 2009-2017 -- <v.nicosia@qmul.ac.uk>
+ * 
+ *  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__