Shout out to D at cppcon, when talkign about ranges.

Ulrich Kuettler via Digitalmars-d digitalmars-d at puremagic.com
Mon Oct 5 23:52:11 PDT 2015


On Tuesday, 6 October 2015 at 02:31:53 UTC, Eric Niebler wrote:
> On Monday, 5 October 2015 at 21:57:31 UTC, Walter Bright wrote:
>> Yes, you can build debug iterators that know their limits, or 
>> iterators with back pointers to the range. This is not an 
>> inherent property of Boost ranges, does not appear in the 
>> Boost description of ranges (unless I missed it), and is a 
>> kludge. I do not agree that D ranges owe anything to that 
>> design.
>
> The design of the D ranges and algorithms owe quite a lot to 
> C++, and I've heard Andrei say as much. Stepanov did the hard 
> work of defining common algorithms in terms of iterators of 
> different strength.

There is no denying that D owns a lot to C++. Then again D comes 
with great ideas of its own and success has many fathers.

> Given that starting point, ranges of different strength are an 
> "obvious" next step that many people thought up independently. 
> D took it one way and C++ went another.
>
> When designing my range library, I looked at all the prior art 
> available to me including D ranges and decided D's path was not 
> the right one for C++.

What is your thinking here? Did you write it down somewhere? This 
would be very interesting.

> My work is based on Boost.Range. I only posted here to clear up 
> what appeared to me to be confusion about that.
>
> \e




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