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Re: stop using P_, __P in header files


From: Juanma Barranquero
Subject: Re: stop using P_, __P in header files
Date: Sun, 11 Jul 2010 01:51:19 +0200

On Sat, Jul 10, 2010 at 10:45, David Kastrup <address@hidden> wrote:

> Naive or not, "register" is a guarantee that noone is going to take or
> store the address of the named variable.  For compilers not building a
> complete parse tree before code generation, that can be useful
> information.

Agreed.

But the question still stands: are there many current compilers who
benefit from register declarations, and if so, it is enough of an
improvement to make a difference?

On the computers I use, there's not that much difference even between
optimized and non-optimized Emacs builds (with GCC 3.X and 4.X).

    Juanma



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