Function calls

[Bill Baxter]

On Thu, Jan 28, 2010 at 1:55 PM, Michiel Helvensteijn
<m.helvensteijn.remove at gmail.com> wrote:
> Andrei Alexandrescu wrote:
>
>>>> foreach (line; stdin.byLine()) { ... }
>>>>
>>>> vs.
>>>>
>>>> foreach (line; stdin.byLine) { ... }
>>>>
>>>> How do I choose?
>>>
>>> byLine is a property.  It is fetching a range on stdin.
>>>
>>> -Steve
>>
>> Damn. I was sure the answer will be different.
>
> byLine() is a function. It changes the state of stdin. Calling it
> consecutively will in general result in different return values. If there
> were two guys: stdin.currentLine (property) and stdin.nextLine(), it would
> be a different story.

That's not how it works, I think.
Just calling byLine() by itself only returns a range struct.
Consuming things from that range is what changes the state of stdin.

--bb