I don't think I've swapped variables since writing bubble sorts 40 years ago.
Mike
-----Original Message----- From: ProfoxTech [mailto:profoxtech-bounces@leafe.com] On Behalf Of Peter Cushing Sent: Thursday, April 21, 2016 7:47 AM To: profoxtech@leafe.com Subject: Re: Swap two variables
On 21/04/2016 11:43, Laurie Alvey wrote:
I'm sure we're all familiar with the standard way to swap two variables:
LOCAL p, q p = 1 q = 2 Swap(@p, @q) && pass by reference
PROCEDURE Swap(v1, v2) LOCAL dum dum = v1 v1 = v2 v2 = dum ENDPROC
Never had an occasion to swap variables. Under what sort of situation is this useful?
Thanks,
Peter
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