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Re: Bug in SWITCH - ELSE: statement? [message #56313 is a reply to message #56308]

Thu, 11 October 2007 08:39

larkn10
Messages: 10
Registered: July 2006

Junior Member

Hi Chris,

My understanding of SWITCH is that as soon as one option is true every
subsequent option is executed. The ELSE is the default if there is no
option that works, but it is always executed in a SWITCH statement.

You brought up something interesting (to me anyway.) If you place
the
ELSE earlier in the SWITCH statement, then everything below it is
executed. If you do the same for a CASE statement then only then
ELSE is executed. It never occurred to me until I saw your post
that it was possible to place the ELSE anywhere but at the end.

Anyway, I don't know if this is helpful.

EXAMPLE:
--------

pro switchtest

a = 5

switch a of
else:print,'switchelse'
1:print,'no1'
3:print,'no3'
5:print,'yes5'
6:print,'6'
else:print,'switchelse'
endswitch

case a of
else:print,'caseelse'
1:print,'case1'
5:print,'case5'
endcase

end;switchtest

OUTPUT:
-------
switchelse
no1
no3
yes5
6
switchelse
caseelse

-Larry

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[Message index]

		Re: Bug in SWITCH - ELSE: statement? By: R.G.Stockwell on Fri, 12 October 2007 13:56
		Re: Bug in SWITCH - ELSE: statement? By: Matt[2] on Fri, 12 October 2007 13:40
		Re: Bug in SWITCH - ELSE: statement? By: JD Smith on Fri, 12 October 2007 12:43
		Re: Bug in SWITCH - ELSE: statement? By: R.G.Stockwell on Thu, 11 October 2007 09:47
		Re: Bug in SWITCH - ELSE: statement? By: Paul Van Delst[1] on Thu, 11 October 2007 09:42
		Re: Bug in SWITCH - ELSE: statement? By: Paul Van Delst[1] on Thu, 11 October 2007 09:27
		Re: Bug in SWITCH - ELSE: statement? By: larkn10 on Thu, 11 October 2007 08:39

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