Re: [bug-gawk] "The GNU AWK User's Guide" Section 11.2.1.2 - example program error, maybe

[Aharon Robbins]

Hi. Apologies for the long delay in replying to this.

> From: "address@hidden" <address@hidden>
> To: address@hidden
> Date: Tue, 16 Aug 2011 11:31:57 -0600
>
> I believe I've found a problem with an example program in "The GNU AWK
> User's Guide" Section 11.2.1.2 Controlling Array Scanning Order
>
> The example appears to have 2 problems:
>
>   $ gawk 'BEGIN {
>      >    a[4] = 4
>      >    a[3] = 3
>      >    for (i in a)
>      >        print i, a[i]
>      > }'
>      -| 4 4
>      -| 3 3
>      $ gawk 'BEGIN {
>      >    PROCINFO["sorted_in"] = "@str_ind_asc"
>      >    a[4] = 4
>      >    a[3] = 3
>      >    for (i in a)
>      >        print i, a[i]
>      > }'
>      -| 3 3
>      -| 4 4
> __________________
>
> In line 10, of the example, I believe the author meant to use the special
> value ="@ind_str_asc"

You are correct. I have fixed the document.

> The other issue is that I have run these routines on two systems and
> the results are the same
>
> > 4  4
> > 3  3 
> unlike the example, where the second run sorts the rows in ascending order.

As was pointed out, I believe, by someone else, you are using too old
a version of gawk. The sorting features are new in gawk 4.0.  3.1.5 is
quite old and you should upgrade.

Much thanks for the report!

Arnold