size 2. The old backing store of size 1 is now garbage.
that is also allowed per the header (mypolicy in the example above).
，这一点在新收录的资料中也有详细论述
20 monthly gift articles to share，这一点在新收录的资料中也有详细论述
Cosmic rays hit computer RAM all the time. If your RAM is not ECC protected, it will likely flip a random bit. A single bit in billions of bits. Does it matter? Yes. Yes it does.，详情可参考新收录的资料