sio2Free will make the memory leak????

void sio2Free( void *_ptr )
{
unsigned int i = 0;

while( i != sio2memory->n_alloc )
{
if( _ptr == sio2memory->_SIO2meminfo[ i ]->ptr )
{
memcpy( &sio2memory->_SIO2meminfo[ i ],
&sio2memory->_SIO2meminfo[ i + 1 ],
( sio2memory->n_alloc - i ) * sizeof( SIO2meminfo * ) );

sio2memory->n_alloc--;
sio2memory->_SIO2meminfo = ( SIO2meminfo ** ) realloc( sio2memory->_SIO2meminfo,
sio2memory->n_alloc * sizeof( SIO2meminfo * ) );
break;
}

++i;
}
}

in the function , only free SIO2meminfo Node's memory ,but not free the point "ptr"'s memory

Just use instruments with leaks, sio2_memory was written quickly back in the days when instruments was not as good as it is today