[erlang-questions] dets:info/2

Tim <>
Sun Jun 30 19:50:55 CEST 2013


Ooookaaaay.  I see I'm going to have to unlearn a lot of assumptions to get my brain into the Erlang groove.  :)

Thanks for sorting that out - it does now work as expected.

One parting question though:  If integers and strings (lists of integers) are _not_ interchangeable, why doesn't this line generate an error?

{html, MyInfo}.



On 01/07/2013, at 1:21 AM, Joseph Wayne Norton <> wrote:

> MyInfo is an integer.  You need to convert it to a string before using the "++" operator.  A string is simply a list of integers in Erlang.
...
> 1> dets:open_file(ingredients, [{file,"ingredients.dets"},{type,set}]).
> {ok,ingredients}
> 2> 
> 2> MyInfo = dets:info(ingredients,no_objects).
> 0
> 3> integer_to_list(MyInfo).
> "0"




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