Hmm... An idea: if a,b==c,d:

[Brad Hards]

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On Tue, 19 Nov 2002 08:49, Richard Dillingham wrote:
> Kind of like we have multiple assignments in a line (oldx,oldy=x,y), what
> do you think of the ability to have multiple tests in an if statement with
> only one == or >=.
I think of (oldx, oldy = x,y) as forming a tuple (x,y), and then unpacking it 
to oldx and oldy.

> This would mean that lines like the following:
> if posx>=coords[0] and posy>=coords[1] and posx<=coords[2] and
> posy<=coords[3]:
>
> Could be rewritten like so:
> if posx,posy>=coords[0],coords[1] and posx,posy<=coords[2],coords[3]
I am not sure what it means for a tuple (posx,posy) to be greater than a 
another tuple (coords[0], coords[1]).

What is the result of (posx, posy >= coords[0], coords[1]) for the following 
cases:
For posx> coords[0] and posy>coords[1]? (I assume that this is true)
For posx< coords[0] and posy<coords[1]? (I assume that this is false)
For posx> coords[0] and posy<coords[1]? (Not sure about this)
For posx< coords[0] and posy<coords[1]? (Not sure about this)

I think that X > Y implies Y<X. I'm not clear on how this would work for a 
tuple comparison.

Brad
- -- 
http://linux.conf.au. 22-25Jan2003. Perth, Aust. I'm registered. Are you?
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