Why is alength() instead of length() used?

[prRZ5F4LXZ]

I see awka uses alength() instead of length(). But other awk implementation support length(). Is it better to rename alength() to length() so that awk code works with other awk implementations still works with awka?

$ awka 'BEGIN { a["a"]=1; print alength(a) }' > a.c
$ gcc -lawka -o a.out a.c
$ ./a.out
$  awka 'BEGIN { a["a"]=1; print length(a) }'
awka: line 1: illegal reference to array a
$ mawk 'BEGIN { a["a"]=1; print length(a) }'
1
$ gawk 'BEGIN { a["a"]=1; print length(a) }'
1

[jlp765]

Fixed in #12