GRASS GIS 8 Programmer's Manual 8.4.1(2025)-45ca3179ab
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create.c
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1#include <stdio.h>
2#include <stdlib.h>
3#include <grass/btree.h>
4
5int btree_create(BTREE *B, int (*cmp)(const void *, const void *), int incr)
6{
7 if (incr <= 0)
8 incr = 1;
9
10 B->N = 0;
11 B->cur = 0;
12 B->tlen = B->incr = incr;
13
14 /* must have at least 2 nodes, since node[0] is never used */
15 if (B->tlen == 1)
16 B->tlen = 2;
17
18 B->cmp = cmp;
19 B->node = (BTREE_NODE *)malloc(B->tlen * sizeof(BTREE_NODE));
20 if (B->node == NULL)
21 return 0;
22 return 1;
23}
#define NULL
Definition ccmath.h:32
int btree_create(BTREE *B, int(*cmp)(const void *, const void *), int incr)
Definition create.c:5