[bug-gawk] fatal: split: second argument is not an array

[Hermann Peifer]

Hi,

I tried to split fields 1, 2 and 3 into arrays a[1], a[2] and a[3] 
respectively, see the below example (1). I ended up with the 
above-mentioned fatal error and I wonder if the error is correct as the 
identifiers a[1], a[2] and a[3] have never been used before. So in my 
(potentially wrong) understanding, they are "untyped", which means they 
could be either used as a scalar variable or as an array.

I got around the fatal error by initialising a[1], a[2] and a[3] as 
arrays, see (2), but I wonder if this hack should really be necessary.

Thanks in advance for your time,

Hermann

(1)

$ echo "a b/c d/e/f" | awk -i walkarray '{for (i=1;i<=NF;i++) 
split($i,a[i],"/"); walk_array(a)}'
awk: cmd. line:1: (FILENAME=- FNR=1) fatal: split: second argument is 
not an array

(2)

$ echo "a b/c d/e/f" | awk -o -i walkarray '{for (i=1;i<=NF;i++) 
{a[i][0];split($i,a[i],"/")} walk_array(a)}'
[1][1] = a
[2][1] = b
[2][2] = c
[3][1] = d
[3][2] = e
[3][3] = f