Different/simple ways to implement some_function() and some_function!() that raises exception

Questions & Help Questions
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4

Your simplification seems reasonable to me. Since you mentioned lines of code, you could easily just do the following, without (in my opinion) any loss of clarity:

# renaming raise_error_or_return_value_in_tuple/3 to bang/3
def do_something!(input, number) do
  bang(do_something(input, number))
end

I have not used it but there is also the bang library.