[erlang-questions] Optional callbacks
Tue Jul 28 12:30:11 CEST 2015
Started trying to play with those, and not managing to get a warning
When I change the body of the function to 'ok', I do get a warning for a
normal callback, and I get nothing for an optional callback.
Is that normal?
The behaviour_info function does return the callback as optional.
Author of The Erlanger Playbook,
A book about software development using Erlang
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