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Re: simple question [message #20146 is a reply to message #16986]

Fri, 19 May 2000 00:00

Paul van Delst
Messages: 364
Registered: March 1997

Senior Member

Pavel Romashkin wrote:
>
> Isn't breaking out of DO loops the same as using conditional loops? FOR
> / DO have a particular purpose, to execute a certain number of times.
> For repeating under a condition, WHILE and REPEAT are provided, I think.

I agree. But both WHILE and REPEAT exit the conditional loop once a
specified condition occurs. Sometimes, you don't want to exit the loop,
just skip the current cycle and continue. The existence of WHILE and
REPEAT certainly limit the need for a BREAK type of statement, but not a
CONTINUE (or CYCLE). In addition, the WHILE and REPEAT don't provide you
with the current loop index (i.e. you have to do your own i = i + 1
within the loop). I guess one's preference for using WHILE/REPEATs or
FOR loops with CONTINUE/BREAKs stems non-trivially from personal
aesthetic.

paulv
--
Paul van Delst Ph: (301) 763-8000 x7274
CIMSS @ NOAA/NCEP Fax: (301) 763-8545
Rm.202, 5200 Auth Rd. Email: pvandelst@ncep.noaa.gov
Camp Springs MD 20746

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[Message index]

		simple question about bytes By: Gerhard D. Rappold on Thu, 02 September 1999 00:00
		Re: simple question about bytes By: R.Bauer on Fri, 03 September 1999 00:00
		Re: simple question By: Paul van Delst on Fri, 19 May 2000 00:00
		Re: simple question By: promashkin on Thu, 18 May 2000 00:00
		Re: simple question By: Paul van Delst on Thu, 18 May 2000 00:00
		Re: simple question By: Craig Markwardt on Thu, 18 May 2000 00:00

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