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Re: Unused variable in mouse.el: make-cursor-line-fully-visible


From: Stefan Monnier
Subject: Re: Unused variable in mouse.el: make-cursor-line-fully-visible
Date: Sun, 28 Jan 2007 23:35:55 -0500
User-agent: Gnus/5.11 (Gnus v5.11) Emacs/22.0.92 (gnu/linux)

>> >  (_ (mouse-set-point start-event)) ; variable `_' is unused, AFAICT.
>> 
>> It's probably my code, influenced by my SML hacking.
>> 
>> In Prolog, Haskell, SML, (and probably all other ML dialects and many
>> logic programming languages) _ is a special variable used as here, to
>> ignore arguments or return values.

> Yes, I'm used to it in Prolog and Haskell.

Good.

> I don't see why any variable should be bound here, however, anonymous or not.

Coding convenience.

> It is no doubt compiled away, but I think the code is a bit less clear.

It's definitely not compiled away.

> It's not a big deal, though.

Good,


        Stefan




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