本文介绍了在iOS中播种arc4random()的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
根据我的收集, arc4random()
生成的随机数要比 rand()
好得多,但是我还没有找到播种它的方法,因此我想就像使用 srand()
一样。有办法吗?
From what I can gather arc4random()
generates much better random numbers than rand()
does, however I haven't seen a way to seed it, and I would like to just like using srand()
. Is there a way?
推荐答案
这不是arc4random设计的目的。如文档所述:
That's not what arc4random is designed to do. As the documentation states:
由于它是从熵源重新播种的,因此您通过手动播种不会获得任何收益,实际上,这种方法不存在。
Since it is re-seeds itself from an entropy source anyway, you gain nothing by seeding it manually, and in fact, such a method does not exist.
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