Re: Printing arrays from the debugger, once again

[Hermann Peifer]

Just to add another example code for the same issue. I was using latest
gawk code from git/gawk-5.3-stable branch, on a MacBook.

Hermann

> cat test3.awk
@include "walkarray"

BEGIN {
        a[0][1] = 1
        a[0][2] = 2

        # Using untyped b[0] as function argument
        print "b[0] =", typeof(b[0])
        the_func(a[0], b[0])

        # Pre-create b[1] as subarray, as done in the old days
        b[1][1] = ""
        delete b[1][1]

        # Using subarray b[1] as function argument
        print "b[1] =", typeof(b[1])
        the_func(a[0], b[1])

        walk_array(b, "b")
}

function the_func(array1, array2) {
        for (i in array1)
                array2[i] = exp(array1[i])
}
>
> gawk -D -f test3.awk
gawk> r
Starting program:
b[0] = untyped
b[1] = array
b[0][1] = 2.71828
b[0][2] = 7.38906
b[1][1] = 2.71828
b[1][2] = 7.38906
Program exited normally with exit value: 0
gawk> p @b
b["(null)"]["1"] = 2.7182818284590451
b["(null)"]["2"] = 7.3890560989306504
b["1"]["1"] = 2.7182818284590451
b["1"]["2"] = 7.3890560989306504
gawk>


On 22/12/2023 14.29, Hermann Peifer wrote:
> See below where "walkarray" prints a[0][1], etc. whereas the debugger
> prints a["(null)"]["1"].
>
> The debugger prints a[1] as expected. Maybe because array a[1] already
> existed before calling split(), my best guess.
>
> Hermann
>
>
> a) Using latest gawk code from git/gawk-5.3-stable branch, on my
> MacBook, Machine Type: aarch64-apple-darwin23.1.0
>
>  > cat test.awk
> @include "walkarray"
>
> {
>      split($0, a[0])
>      a[1][1]
>      split($0, a[1])
> }
>
> END { walk_array(a, "a") }
>  >
>  > cat test.dat
> 1 2 3
>  >
>  > gawk -D -f test.awk test.dat
> gawk> r
> Starting program:
> a[0][1] = 1
> a[0][2] = 2
> a[0][3] = 3
> a[1][1] = 1
> a[1][2] = 2
> a[1][3] = 3
> Program exited normally with exit value: 0
> gawk> p @a
> a["(null)"]["1"] = "1"
> a["(null)"]["2"] = "2"
> a["(null)"]["3"] = "3"
> a["1"]["1"] = "1"
> a["1"]["2"] = "2"
> a["1"]["3"] = "3"
> gawk>
>
>
> b) Using gawk5.3.0 release, installed via Homebrew
>
> (...)
> gawk> p @a
> (null)["1"] = "1"
> (null)["2"] = "2"
> (null)["3"] = "3"
> 1["1"] = "1"
> 1["2"] = "2"
> 1["3"] = "3"
> gawk>