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Re: Using 'register' and ^L

From: Paul Eggert
Subject: Re: Using 'register' and ^L
Date: Tue, 09 Sep 2014 22:30:20 -0700
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.0

Dmitry Antipov wrote:
1) Is there a reason to use explicit 'register' variables nowadays?
    This encumbers sources with no measurable benefits; moreover,
    some GC tracing/debugging techniques assumes that you can take
    an address of any Lisp_Object, which is effectively blocked by
    using 'register'.

There's no reason to use 'register' nowadays in the Emacs source code. We haven't bothered to systematically remove 'register' because it's been treated like tabs versus spaces, i.e., not worth changing. But if instances of 'register' are causing trouble please just remove them.

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