[bug-gawk] typeof() array subscripts

[Hermann Peifer]

Hi again,

I just came across the new builtin function typeof() in gawk master and 
made the below observations which I found confusing, because "array 
subscripts are always strings", as I learned from the manual. Maybe I am 
overlooking something.

Hermann


# These subscripts are numbers, rather than the expected strings.
$ awk 'BEGIN{ a[1]; a[2]; for (i in a) print i, typeof(i) }'
1 scalar_n
2 scalar_n

# Same here...
$ awk 'BEGIN{ a["1"]; a["2"]; for (i in a) print i, typeof(i) }'
1 scalar_n
2 scalar_n

# One number and one string
$ awk 'BEGIN{ a["1"]; a["x"]; for (i in a) print i, typeof(i) }'
x scalar_s
1 scalar_n

# Why 2 strings in the below case?
$ awk 'BEGIN{ a["x"]; a["1"]; for (i in a) print i, typeof(i) }'
x scalar_s
1 scalar_s