From: Frank Klemm <pfk@fuchs.offl.uni-jena.de>
To: Neil Booth <neil@daikokuya.demon.co.uk>
Cc: gcc@gcc.gnu.org
Subject: Re: Proposal
Date: Sat, 29 Sep 2001 15:45:00 -0000 [thread overview]
Message-ID: <20010929195553.B1290@fuchs.offl.uni-jena.de> (raw)
In-Reply-To: <20010928003613.A3397@daikokuya.demon.co.uk>
On Fri, Sep 28, 2001 at 12:36:13AM +0100, Neil Booth wrote:
> Frank Klemm wrote:-
>
> > '_' should be allowed in numbers. It is allowed between the digits of
> > numbers in a C/C++ source _before_ preprocessing. It is not allowed between
> > digits which are 'created' during the preprocessor phase.
>
> Why are you so keen to disallow it in created tokens?
>
Write a filter which converts a C_99 source file to C99.
The first with this restriction, the second without.
It must be pssoible to translate such source file with "old" compilers.
> If a patch to implement '_' in numbers were submitted, I would require
> that a preprocessing number be a pp number no matter how it is created;
> I'm pretty sure Zack would agree with me.
>
> > #define MY_MERGE_5(a,b,c,d,e) a##b##c##d##e
> > #define MILLION MY_MERGE_5 ( 1, _, 000, _, 000 )
> > #define BILLION MY_MERGE_5 ( MILLION, _, 000, _, 000 ) // UK notation
>
> BILLION won't expand to what you think. As for UK notation, I'm
> British and I can't think of the last time I've seen a billion have 12
> zeroes. In fact, I think the only time it occurs is when people are
> comparing the claimed British and American forms :-)
>
A billion has no zeros: 1.e+12
--
Frank Klemm
next prev parent reply other threads:[~2001-09-29 15:45 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-09-15 11:45 Proposal Frank Klemm
2001-09-15 12:15 ` Proposal Gerald Pfeifer
2001-09-17 16:00 ` Proposal Neil Booth
2001-09-18 2:30 ` Proposal Joseph S. Myers
2001-09-18 10:21 ` Proposal Zack Weinberg
2001-09-18 11:14 ` Proposal Joseph S. Myers
2001-09-18 22:20 ` Proposal Zack Weinberg
2001-09-19 1:14 ` Proposal Joseph S. Myers
2001-09-18 12:23 ` Proposal Frank Klemm
2001-09-18 22:37 ` Proposal Zack Weinberg
2001-09-19 0:02 ` Proposal Neil Booth
2001-09-19 2:23 ` Proposal Tim Hollebeek
2001-09-19 2:41 ` Proposal Richard Earnshaw
2001-09-19 13:38 ` Proposal Joe Buck
2001-09-18 15:35 ` Proposal Robert Lipe
2001-09-18 16:59 ` Proposal Russ Allbery
2001-09-20 11:17 ` Proposal Kai Henningsen
2001-09-20 12:34 ` Proposal Russ Allbery
2001-09-18 9:48 ` Proposal Frank Klemm
2001-09-18 11:06 ` Proposal Neil Booth
2001-09-18 11:37 ` Proposal Kevin Handy
2001-09-18 15:48 ` Proposal Neil Booth
2001-09-18 15:55 ` Proposal Toon Moene
2001-09-27 5:39 ` Proposal Alexandre Oliva
2001-09-27 7:09 ` Proposal Frank Klemm
2001-09-27 16:22 ` Proposal Zack Weinberg
2001-09-29 15:45 ` Proposal Frank Klemm
2001-09-30 9:35 ` Proposal Zack Weinberg
2001-09-27 16:36 ` Proposal Neil Booth
2001-09-29 15:45 ` Frank Klemm [this message]
2001-09-29 17:22 ` Proposal Daniel Jacobowitz
2001-09-29 18:32 ` OT: Proposal Michael Matz
2001-10-03 3:52 ` Proposal Fergus Henderson
2001-09-17 8:55 Proposal Thomas R. Truscott
2001-09-18 9:32 Proposal dewar
2001-09-18 12:30 Proposal dewar
2001-09-18 23:01 ` Proposal Zack Weinberg
2001-09-19 0:06 Proposal dewar
2001-09-19 2:34 Proposal dewar
2001-09-19 2:44 Proposal dewar
2012-09-03 15:16 Proposal Afeez Basit
2012-09-03 18:35 Proposal Afeez Basit
2013-06-26 17:41 Proposal Barrister David Lopez Esq
2013-06-26 18:15 ` Proposal Paolo Carlini
2013-06-26 18:40 ` Proposal Daniel Santos
2013-06-26 17:47 Proposal Barrister David Lopez Esq
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