Re: Undocumented join() feature, now defunct? (bug)

Is the behaviour of join with a tied scalar prior to 5.18.2 correct but not clearly explained in the documentation or is it a bug that has now been fixed?

Looks like it was a bug that finally got fixed ... probably as they were fixing an adjacent bug ... an optimization :)

Yup, a bug fixed by accident :) Fold join to const or stringify where possible
you'll see a TIESCALAR test but not as the first argument like you have :) http://perl5.git.perl.org/perl.git/blob/HEAD:/t/op/join.t
http://perl5.git.perl.org/perl.git/history/HEAD:/t/op/join.t

So you should perlbug this johngg to make it official

Comment on Re: Undocumented join() feature, now defunct? (bug)

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Re^2: Undocumented join() feature, now defunct? (bug) by ikegami (Patriarch) on Oct 30, 2014 at 14:32 UTC
That commit is unrelated. There's no constant folding in the OP's code. There's nothing to submit with `perlbug`. The current behaviour is correct. As the OP said, it's expected.	[reply] [d/l]
Re^2: Undocumented join() feature, now defunct? (bug) by johngg (Canon) on Oct 30, 2014 at 10:22 UTC
Thank you. I found this informative and helpful. Cheers, JohnGG	[reply]