C++ Ranges proposal for the Standard Library

[Andrei Alexandrescu via Digitalmars-d]

On 10/18/14, 4:43 AM, John Colvin wrote:
> auto kahanSum(R)(R input)
> {
>      double sum = 0.0;
>      double c = 0.0;
>      foreach(double el; input)
>      {
>          double y = el - c;
>          double t = sum + y;
>          c = (t - sum) - y;
>          sum = t;
>      }
>      return sum;
> }

No need to implement it. http://dlang.org/phobos/std_algorithm.html#.sum

Andrei