(since it uses global variables to track its internal state), getopt()
seems, by design, to be only usable once.  But it is not too hard to
imagine situations where you'd want to call it multiple times in a given
program.  Is this possible (in any at least psuedo-portable way) ?

(answering my own question), I have found that setting optind to 1,
seems to work.  That is, I do:

#include <getopt.h>
..
do normal getopt() stuff;
..
optind = 1;
do getopt() again;

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Hello Kenny,

> (since it uses global variables to track its internal state), getopt()
> seems, by design, to be only usable once.  But it is not too hard to
> imagine situations where you'd want to call it multiple times in a given
> program.  Is this possible (in any at least psuedo-portable way) ?
>
> (answering my own question), I have found that setting optind to 1,
> seems to work.  That is, I do:
>
>         #include <getopt.h>
>         ...
>         do normal getopt() stuff;
>         ...
>         optind = 1;
>         do getopt() again;

Seems to be the way to go... You may want to reset opterr and optopt
as well.

Cheers,
Loic.

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