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Re: use of program_name
From: |
James Youngman |
Subject: |
Re: use of program_name |
Date: |
Thu, 5 Jan 2006 22:40:38 +0000 |
User-agent: |
Mutt/1.5.9i |
On Thu, Jan 05, 2006 at 02:03:27PM -0800, Paul Eggert wrote:
> Because the current convention is to put this declaration in the main
> program, at the top level:
>
> char *program_name;
>
> Hence the main program has allocated program_name, and has arranged
> for it to be initialized to null. If we put a similar declaration in
> error.c, it would cause two different definitions of program_name, and
> some non-Unix linkers reject this. (The C Standard allows them to
> reject it.)
>
> > (If the interface to it was just set_program_name, it could be private.)
>
> Yes, that would be a better convention. This will require revamping
> pretty much everybody that uses program_name, but I think it's worth
> the pain. What do others think?
I'm against it, but not because of the extra work. I don't mind that
since the amount of effort is trivial and I can choose when to do it
(i.e. I can choose when to reimport gnulib).
My problem is that we have changed the interface without making it
impossible for the user to use the new interface wrongly. I would
prefer an arrangement which results in a compilation or link failure
if the user (i.e. software maintainer) fails to initialise things
properly. A runtime failure is insufficiently helpful in my opinion.
James.
- Re: use of -fno-common on Darwin, (continued)
- Re: use of -fno-common on Darwin, Bruno Haible, 2006/01/10
- Re: use of -fno-common on Darwin, Peter O'Gorman, 2006/01/10
- Re: getprogname, Bruno Haible, 2006/01/10
- Re: getprogname, Paul Eggert, 2006/01/10
- Re: getprogname, Bruno Haible, 2006/01/10
- Re: getprogname, Paul Eggert, 2006/01/11
- Re: use of -fno-common on Darwin, James Youngman, 2006/01/10
- Re: getprogname, Bruno Haible, 2006/01/11
- Re: getprogname, Paul Eggert, 2006/01/11
- Re: [bug-gnulib] Re: use of program_name, Bruno Haible, 2006/01/09
- Re: use of program_name,
James Youngman <=
- Re: [bug-gnulib] Re: use of program_name, Bruno Haible, 2006/01/09
- Re: [bug-gnulib] Re: use of program_name, James Youngman, 2006/01/09
- Re: use of program_name, Dave Love, 2006/01/05
- Re: [bug-gnulib] Re: use of program_name, Bruno Haible, 2006/01/09
- Re: [bug-gnulib] Re: use of program_name, Bruno Haible, 2006/01/09
Re: [bug-gnulib] use of program_name, Bruno Haible, 2006/01/09