Functional - Re: What's the reason to have non-short-circuit operators in erlang

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Re: What's the reason to have non-short-circuit operators in erlang

Joachim Durchholz

2007-08-15, 7:11 pm

konryd schrieb:
> I just began reading "Programming Erlang", and wonder what is the
> reason for having both short-circuit and non-short-circuit logical
> "and" and "or" sice they're to be used in guards anyway (which by
> definition don't alter data). While short-circuit logic is obviously
> very practical for cases like division by zero in your example, I
> can't think of any practical use of non-short-circuit operators in
> guards.

A non-short-circuiting operator allows the compiler to choose which
operand to evaluate first.

Regards,
Jo

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