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Re^3: What is the truth about srand()?

by doc_faustroll (Scribe)
on Mar 29, 2006 at 15:59 UTC ( #539991=note: print w/replies, xml ) Need Help??

in reply to Re^2: What is the truth about srand()?
in thread What is the truth about srand()?

My knowledge is creaky and old, and my typing is worse! So, I'm glad someone is awake with a sense of humor around here. I need good slap down.

How about this: calling srand without an expression causes it to use a default which my be /dev/urandom in a best case.

But you usually don't want to explicitly call srand unless you are going to supply your own seed EXPR. let rand do it for you!

update: I'm going to crawl back into my cubicle like bed and come back when I can actually read your question and respond more thoughtfully. You are obviously using rand and were just wondering what the seed was. on *nix, it will most likely be /dev/urandom. But if a security guy is asking and you need crypto level randomness then my over obvious post might have some mete of merit.

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