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March 7, 2001 01:56Subject:

Re: [ID 20010305.005] "use integer" doesn't make rand() return integersMessage ID:

3AA613D5.735.7163DF@localhostOn 6 Mar 2001, at 14:08, John Peacock wrote: > The problem comes when someone codes this: > > use integer; > for(;;) { > print rand; > } > > because this has no meaning. I'd say it has the meaning: print(int(rand()) -- that is, using rand's default argument of 1. Of course, a function that always returns 0 is not very useful, but that's another thing. > The range of integers 0..1 is not as easily derivable from rand()'s > 0..0.999999999 (you'd have to use round). The set (0, 1) would be wrong as the output for int(rand()) or int(rand(1)) IMO -- rand() is defined to be rand(1) which is defined to give a value x with 0 <= x < 1. Hence, truncating that should always give 0. Cheers, Philip -- Philip Newton <pnewton@gmx.de> I appreciate copies of replies to my messages to Perl5 lists.Thread Previous | Thread Next

- [ID 20010305.005] "use integer" doesn't make rand() return integers by fanf
- Re: [ID 20010305.005] "use integer" doesn't make rand() return integers by rspier
- Re: [ID 20010305.005] "use integer" doesn't make rand() return integers by John L. Allen
- Re: [ID 20010305.005] "use integer" doesn't make rand() return integers by John Peacock
- Re: [ID 20010305.005] "use integer" doesn't make rand() return integers by rspier
- Re: [ID 20010305.005] "use integer" doesn't make rand() return integers by John Peacock
- Re: [ID 20010305.005] "use integer" doesn't make rand() return integers by rspier
- Re: [ID 20010305.005] "use integer" doesn't make rand() return integers by Walt Mankowski
- Re: [ID 20010305.005] "use integer" doesn't make rand() return integers by abigail
- Re: [ID 20010305.005] "use integer" doesn't make rand() return integers by John L. Allen
- Re: [ID 20010305.005] "use integer" doesn't make rand() return integers by John Peacock
- Re: [ID 20010305.005] "use integer" doesn't make rand() return integers by Philip Newton
- Re: [ID 20010305.005] "use integer" doesn't make rand() return integers by Tony Finch
- Re: [ID 20010305.005] "use integer" doesn't make rand() return integers by Philip Newton
- Re: [ID 20010305.005] "use integer" doesn't make rand() return integers by rspier
- Re: [ID 20010305.005] "use integer" doesn't make rand() return integers by John Peacock
**Re: [ID 20010305.005] "use integer" doesn't make rand() return integers**by Philip Newton- Re: [ID 20010305.005] "use integer" doesn't make rand() return integers by abigail
- Re: [ID 20010305.005] "use integer" doesn't make rand() return integers by John Peacock
- Re: [ID 20010305.005] "use integer" doesn't make rand() return integers by abigail
- Re: [ID 20010305.005] "use integer" doesn't make rand() return integers by John Peacock
- Re: [ID 20010305.005] "use integer" doesn't make rand() return integers by abigail
- Re: [ID 20010305.005] "use integer" doesn't make rand() return integers by Ronald J Kimball
- Re: [ID 20010305.005] "use integer" doesn't make rand() return integers by Bryan C . Warnock
- Re: [ID 20010305.005] "use integer" doesn't make rand() return integers by abigail
- Re: [ID 20010305.005] "use integer" doesn't make rand() return integers by Bryan C . Warnock
- Re: [ID 20010305.005] "use integer" doesn't make rand() return integers by Nicholas Clark
- Re: [ID 20010305.005] "use integer" doesn't make rand() return integers by Bryan C . Warnock
- Re: [ID 20010305.005] "use integer" doesn't make rand() return integers by abigail
- Re: [ID 20010305.005] "use integer" doesn't make rand() return integers by Bryan C . Warnock
- Re: [ID 20010305.005] "use integer" doesn't make rand() return integers by John Peacock
- Re: [ID 20010305.005] "use integer" doesn't make rand() return integers by John Peacock

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