[erlang-questions] Tail call optimization

Pierpaolo Bernardi <>
Mon Oct 17 15:57:29 CEST 2016


On Mon, Oct 17, 2016 at 2:47 PM, Salikhov Dinislam
<> wrote:
>> There is nothing about recursion in documentation.
> The only doc that I've managed to find about the subject is the link from my
> initial post
> (http://erlang.org/doc/reference_manual/functions.html#id78464).
> And it says about recursion: in sub-chapter's header, in sub-chapter itself
> and in the example (all in all, everywhere). Is there another documentation
> that you mean?

Yes, the chapter sub-header has 'recursion' in the name.

But the text says: "If the last expression of a function body is a
function call, a tail recursive call is done."

This in no way can be read as meaning that when the last expression of
a function body is a function call then a tail call is not mandated.

Maybe changing "tail recursive call" to "tail call" would remove an
element of distraction and be more to the point though.


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