The Many Faces of D - slides

[Walter Bright]

Peter Alexander wrote:
> == Quote from Walter Bright (newshound2 at digitalmars.com)'s article
>> This can be defined instead as:
>> alias reduce!"a+b" sum;
> 
> But then you have to write:
> 
>     sum(sequence, 0)
> 
> which is very unintuitive.

This works:

import std.stdio;
import std.algorithm;

alias reduce!"a+b" sum;

auto sumOfSquares( R )( R range ) {
      return sum( map!"a*a"( range ) );
}

void main()
{
     writeln(sumOfSquares([1,2,3]));
}