What do you assume when you see fromListN in a library?

[Zemyla]

I'm kind of the opposite. I think the number given to fromListN should be a
"size hint", not a redundant coding of the size of the list given.

On Thu, Feb 27, 2020, 21:31 chessai . <chessai1996 at gmail.com> wrote:

> I expect a list with precisely length N, and reject anything else. IIRC
> both primitive and vector do this
>
> On Thu, Feb 27, 2020, 6:54 PM Carter Schonwald <carter.schonwald at gmail.com>
> wrote:
>
>> Hey everyone:
>> When you see fromListN as a function in a library, do you assume /
>> presume it’s expecting an exactly N element list ? Or do you
>> expect/tolerate other behavior ?
>>
>> Should it reject shorter lists?
>>
>> Should it truncate or reject longer lists?
>>
>> A corner case of this came up in some bug discussion I was having
>> regarding vector,  and I shall claim and or presume that most folks assume
>> exact size with prompt rejection of too long or too short.
>>
>> Thoughts please ?
>>
>> -Carter
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