Whither Tango?

[Andrei Alexandrescu]

Norbert Nemec wrote:
> Andrei Alexandrescu wrote:
>> "iota" is already present with the same semantics in 1.25 languages: 
>> C++ and Go. Anyhow, what's a better name?
> 
> For me, a Google search for "C++ iota" only returns discussions about 
> whether such a function actually exists in the STL. Is it really in the 
> standard?

It's not in the standard (and I haven't claimed so). It's commonly 
present as an extension.

> Anyway: Looking at the definition of ïota in Phobos, it simply seems to 
> be a slicing operation with a stride. Most intuitive to me would be to 
> rename the function to "slice" and the option step to "stride"?

iota(0, 10, 2) generates the numbers 0, 2, 4, 6, 8.

http://www.digitalmars.com/d/2.0/phobos/std_range.html#iota

The name "stride" is currently used by a range adaptor that takes a 
range and walks it with a given stride. stride([1, 2, 3], 2) generates 1 
and 2.

http://www.digitalmars.com/d/2.0/phobos/std_range.html#stride

BTW stride iterators are mentioned by Stepanov:

http://www.stlport.org/resources/StepanovUSA.html


Andrei