Re: [help-gengetopt] make cmd_line_list and cmd_line_list_tmp static?

[Lorenzo Bettini]

Andre Noll wrote:
> > the struct that is passed to getopt_internal_r is static, so its fields 
> > are initialized to 0 only once: the first time getopt_internal_r is 
> > called the struct is correctly initialized, the other times it is not 
> > (unless you set optind to 0, which is not standard)
>
> Exactly.
>
> > what do you think?
>
> I fully agree with your analysis. But I'm afraid the glibc people will
> argue that their implementation is posix conform and that there are
> (glibc-only) workarounds for our problem available.
>
> So I think the best way to circumvent this is to further clean
> up the getopt.c I've posted and to include it in gengetopt.

I've just posted a tentative version that uses the customized version to 
solve the problem

actually, as far as I understand, the posix says that at the beginning 
optind must be 1, so it makes sense (at least to me :-) that optind = 1 
must be considered the initialization condition and not optind = 0

> This not only avoids future compatiblility issues with other
> implementations of getopt, but also gives us the freedom to change
> things at will rather than having to rely on a standard which simply
> doesn't cover things like multiple parsers or a non-constant argv.

yes but my only concern is that any future updates/addition to getopt 
implementation must be adapted by hand to the customized version...

time will tell ;-)

hope to hear from you soon

cheers
        Lorenzo

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|  Lorenzo Bettini          ICQ# lbetto, 16080134     |
|  PhD in Computer Science                            |
|  Dip. Sistemi e Informatica, Univ. di Firenze       |
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