Re: add non-option reordering to in-tree getopt_long - Mailing list pgsql-hackers

On Wed, Jun 14, 2023 at 02:28:16PM -0700, Nathan Bossart wrote:
> On Tue, Jun 13, 2023 at 05:17:37PM -0700, Noah Misch wrote:
> > If you have a test program to be run, I can run it on AIX.
> 
> Thanks.  The patch above [0] adjusts 040_createuser.pl to test modifying
> argv, so that's one test program.  And here's a few lines for reversing
> argv:
> 
>     #include <stdio.h>
> 
>     int
>     main(int argc, char *argv[])
>     {
>         for (int i = 0; i < argc / 2; i++)
>         {
>             char       *tmp = argv[i];
> 
>             argv[i] = argv[argc - i - 1];
>             argv[argc - i - 1] = tmp;
>         }
> 
>         for (int i = 0; i < argc; i++)
>             printf("%s ", argv[i]);
>         printf("\n");
>     }

Here's some output from this program (on AIX 7.1, same output when compiled
32-bit or 64-bit):

$ ./a.out a b c d e f
f e d c b a ./a.out

Interesting discussion here, too:
https://github.com/libuv/libuv/pull/1187