It's a tactic, it's not an end in itself, and I think that the only thing TV Marti has challenged is that Congress truly cares about the taxpayer money,".

VOA: standard.2009.06.18

So in the end, this is just saying allocate me as many bytes s1 as were needed to store s1 itself.

最终，这个只是表示给我分配,足够多的空间来存储。

哈佛公开课 - 计算机科学课程节选