Gawk 3.1.6 bug?

[Nielsen, Dan (GE, Corporate)]

I don't know if this is a bug or not. Or, if it has already been reported.

When I populate an array and test its length everything is fine. 

However, if testing the length of array first then populating it I get the
message
"fatal: split: second argument is not an array"
I suspect this is because arr as in length(arr) defines arr as a string then
split("",arr) verifies that arr is indeed an array.

BTW, both these examples work as desired under awk95 and Tawk.


# array length then array load
# How to run: GAWK_3_1_6.EXE -f ZERROR9A.AWK
# error message: fatal: split: second argument is not an array
BEGIN {
    if (length(arr) == 0) { print("T") } else { print("F") }
    f()
}
function f() { split("1",arr) }


# array load then array length
# How to run: GAWK_3_1_6.EXE -f ZERROR9B.AWK
# error message: none
BEGIN {
    f()
    if (length(arr) == 0) { print("T") } else { print("F") }
}
function f() { split("1",arr) }

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