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/*
+----------------------------------------------------------------------+
| Xdebug |
+----------------------------------------------------------------------+
| Copyright (c) 2002-2010 Derick Rethans |
+----------------------------------------------------------------------+
| This source file is subject to version 1.0 of the Xdebug license, |
| that is bundled with this package in the file LICENSE, and is |
| available at through the world-wide-web at |
| http://xdebug.derickrethans.nl/license.php |
| If you did not receive a copy of the Xdebug license and are unable |
| to obtain it through the world-wide-web, please send a note to |
| xdebug@derickrethans.nl so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Authors: Derick Rethans <derick@xdebug.org> |
+----------------------------------------------------------------------+
*/
/* $Id: xdebug_set.c,v 1.5 2010-05-07 20:39:13 derick Exp $ */

#include <stdlib.h>
#include <math.h>
#include "xdebug_set.h"

xdebug_set *xdebug_set_create(unsigned int size)
{
xdebug_set *tmp;

tmp = calloc(1, sizeof(xdebug_set));
tmp->size = size;
size = ceil((size + 7) / 8) + 1;
tmp->setinfo = calloc(1, size);

return tmp;
}

void xdebug_set_free(xdebug_set *set)
{
free(set->setinfo);
free(set);
}

void xdebug_set_add(xdebug_set *set, unsigned int position)
{
unsigned char *byte;
unsigned int bit;
 
byte = &(set->setinfo[position / 8]);
bit = position % 8;

*byte = *byte | 1 << bit;
}

void xdebug_set_remove(xdebug_set *set, unsigned int position)
{
unsigned char *byte;
unsigned int bit;

byte = &(set->setinfo[position / 8]);
bit = position % 8;

*byte = *byte & ~(1 << bit);
}

int xdebug_set_in_ex(xdebug_set *set, unsigned int position, int noisy)
{
unsigned char *byte;
unsigned int bit;

byte = &(set->setinfo[position / 8]);
bit = position % 8;

return (*byte & (1 << bit));
}
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