[swift-evolution] ed/ing, InPlace, Set/SetAlgebra naming resolution

[Charles Kissinger]

I like Thorsten’s suggestion. I’m not an authority, but as far as I can tell, ‘add’ and ’subtract' are still mathematical correct and precise when used this way.

—CK

> On Feb 11, 2016, at 10:49 AM, Thorsten Seitz via swift-evolution <swift-evolution at swift.org> wrote:
> 
> "intersection should form a pair with „union“, both being a noun.
> 
> "unioning“ is a bad choice. AFAIK „union“ is only rarely used as verb, so its present participle just sounds … strange.
> 
> 
> I’d like to repeat my suggestion:
> 
> mutating (verbs):
> x.intersect(x)
> x.add(x)
> x.subtract(x)
> 
> nonmutating (nouns):
> x.intersection(x)
> x.union(x)
> x.difference(x)
> 
> 
> -Thorsten
> 
> 
>> Am 11.02.2016 um 19:06 schrieb Joe Groff via swift-evolution <swift-evolution at swift.org>:
>> 
>> 
>>> On Feb 11, 2016, at 8:52 AM, Dave Abrahams via swift-evolution <swift-evolution at swift.org> wrote:
>>> 
>>> 
>>> Hi All,
>>> 
>>> The API guidelines working group took up the issue of the InPlace suffix
>>> yesterday, and decided that it was not to be used anywhere in the
>>> standard library.  We are planning to apply the changes shown here
>>> <https://gist.github.com/dabrahams/d872556291a3cb797bd5> to the API of
>>> SetAlgebra (and consequently Set) to make it conform to the guidelines
>>> under development.
>>> 
>>> Comments welcome as usual,
>> 
>> -///   - `x.intersect(x) == x`
>> -///   - `x.intersect([]) == []`
>> -///   - `x.union(x) == x`
>> -///   - `x.union([]) == x`
>> +///   - `x.intersection(with: x) == x`
>> +///   - `x.intersection(with: []) == []`
>> +///   - `x.unioning(with: x) == x`
>> +///   - `x.unioning(with: []) == x`
>> 
>> What's with the (with:)? That seems like a pretty needless word. Same with 'of:' and friends.
>> 
>> -Joe
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