[erlang-questions] Fwd: Change in behaviour in 5.9

[Michael Uvarov]

Don't use internal structure of iolist. It can be changed anytime. It is
useful for collecting data together, not for splitting it again. You only
can transform the iolist to a list or to a binary.


> Eshell V5.9  (abort with ^G)
> 1> io_lib:format("~10.6.0f", [7.0]).
> [["00",55,46,48,48,48,48,48,48]]
> 2> lists:flatten(io_lib:format("~10.6.0f", [7.0])).
> "007.000000"
>
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