[erlang-questions] behavior of lists:append/1

[Kostis Sagonas]

On 9/16/19 9:54 AM, Lukas Larsson wrote:
> 
> On Sun, Sep 15, 2019 at 8:02 PM Karlo Kuna <kuna.prime@REDACTED 
> <mailto:kuna.prime@REDACTED>> wrote:
> 
>     Michal,
>     i really prefer crashing than garbage in, garbage out policy. 
> 
>     also it would be nice if someone from OTP team confirms if stdlib
>     has "garbage in garbage out" policy. i can certainly see benefits of
>     it but in this case fix is easy and small. 
> 
> 
> It is impossible to guard against every possible faulty input, ...

Although I agree with the rest of Lukas' answer, "impossible" is too 
strong a word here; we are not talking about an undecidable problem 
after all.

I think that "undesirable", "costly", etc. would have been a better 
choice in this context.

Kostis