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/* void free( void * )
This file is part of the Public Domain C Library (PDCLib).
Permission is granted to use, modify, and / or redistribute at will.
*/
#include <stdlib.h>
#ifndef REGTEST
#include "pdclib/_PDCLIB_int.h"
/* TODO: Primitive placeholder. Much room for improvement. */
/* structure holding first and last element of free node list */
extern struct _PDCLIB_headnode_t _PDCLIB_memlist;
void free( void * ptr )
{
if ( ptr == NULL )
{
return;
}
ptr = (void *)( (char *)ptr - sizeof( struct _PDCLIB_memnode_t ) );
( (struct _PDCLIB_memnode_t *)ptr )->next = NULL;
if ( _PDCLIB_memlist.last != NULL )
{
_PDCLIB_memlist.last->next = ptr;
}
else
{
_PDCLIB_memlist.first = ptr;
}
_PDCLIB_memlist.last = ptr;
}
#endif
#ifdef TEST
#include "_PDCLIB_test.h"
#include <stdbool.h>
int main( void )
{
free( NULL );
TESTCASE( true );
return TEST_RESULTS;
}
#endif
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