Auto Interation
janderson
askme at me.com
Sat Sep 1 03:10:29 PDT 2007
Bill Baxter wrote:
> janderson wrote:
>> Here's a random idea that I think may be a little bit much:
>>
>> Auto Array iteration.
>>
>> If you have a function like:
>>
>> void foo(int x);
>>
>> Then the language could allow you to use it on arrays like:
>>
>> auto array = new int[];
>> foo(array); //Iterate though every array
>> foo(5); //One element like normal
>>
>> foo(int[] x); //Override array version of the operation to do
>> something more optimal.
>>
>> It may make logic errors more difficult to see, so scratch that idea.
>>
>> Perhaps it could be done with some template syntax in a slightly more
>> verbose way.
>
> That's what the function called 'apply' typically does in the functional
> paradigm. Something like apply(foo, array). With the extended member
> syntax proposed you could even make it be foo.apply(array).
>
> --bb
Some other languages I've use have a foreach function in the standard
lib. However the point is those can't be overridden.
-Joel
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