By default, the parameterless constructor of the System.Random class (which is what we're using) uses the system time as the initial seed. Every time you ask for a random number, we create a new Random object, and in a tight loop like yours, they'll probably all get the same seed.
We should probably create a single Random object the first time that one is requested and store it in the RubyContext. From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Johan Danforth Sent: Sunday, July 06, 2008 7:28 AM To: [email protected] Subject: [Ironruby-core] rand() needs a seed? I'm a noob Ruby user, but IronRuby behaves different from other Ruby implementations that I've tried, in IronRuby (rev 121) this code: 100.times {p rand(100)} Often returns the same value for (almost) all iterations, like this: 2 2 2 2 2 2 2 2 ...and so on... Works as designed? Need to seed it or something? /Johan
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