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Re: Until

• To: mathgroup at smc.vnet.net
• Subject: [mg7075] Re: [mg7063] Until
• From: Allan Hayes <hay at haystack.demon.co.uk>
• Date: Sun, 4 May 1997 21:59:35 -0400 (EDT)
• Sender: owner-wri-mathgroup at wolfram.com

3 May 1997
Sean Ross <SEAN at mail.creol.ucf.edu>
[mg7063]  Until

>I would like an Until structure where the body is evaluated until  
a >test is true.

Sean:
How about

SetAttributes[Until,HoldAll]
Until[test_, body_]:= While[body;test=!=True]

?
	
Allan Hayes,
hay at haystack.demon.co.uk
http://www.haystack.demon.co.uk