Accessors, byLine, input ranges

[Michel Fortin]

On 2010-01-29 11:00:31 -0500, "Steven Schveighoffer" 
<schveiguy at yahoo.com> said:

> On Fri, 29 Jan 2010 10:53:50 -0500, Michel Fortin  
> <michel.fortin at michelf.com> wrote:
> 
>> On 2010-01-29 10:49:34 -0500, "Steven Schveighoffer"  
>> <schveiguy at yahoo.com> said:
>> 
>>> ugh... much simpler with a true stream-like range that supports what is 
>>>   natural for streams:
>>>  for(int i = 0; i < count && !range.empty; i++) {
>>>     elements ~= range.get();
>>> }
>>>  But of course, then this function doesn't work for other range types.  
>>>  I  decided in that discussion long ago that stream ranges were going 
>>> to  suck.
>> 
>> You can always define a generic take() like this:
>> 
>> 	E take(R, E)(ref R range) {
>> 		E element = range.front;
>> 		range.popFront();
>> 		return element;
>> 	}
>> 
>> This will work for any forward range.
> 
> Except stream ranges.  I don't get it...

Hum, well I used 'take' while you defined 'get' as the basic function 
for stream ranges. They're the same thing. Rename 'take' for 'get', or 
the reverse, and all input ranges can work with the same 'get' or 
'take' function.

(Note: I use 'take' instead of 'get' because it seems clearer to me 
that it also removes the element from the range.)

-- 
Michel Fortin
michel.fortin at michelf.com
http://michelf.com/