gistfile1.rs

    pub fn new(n: nat) -> MBlock {
        let ptr = unsafe { aligned_alloc_raw(MBLOCK_SIZE as size_t, (MBLOCK_SIZE * n) as size_t) };
        assert!(!ptr::is_null(ptr));
        let mb = MBlock{ptr: ptr};
        // XXX should this really be here?
        unsafe {
            let mut block = mb.first_block_ptr();
            let mut bd = mb.first_bdescr_ptr();
            while (block <= mb.last_block_ptr()) {
                (*bd).data.start = cast_ptr(block);
                bd = bd.offset(1);
                block = block.offset(BLOCK_SIZE as int);
            }
        }
        mb
    }