Mapping with partial

[matovitch via Digitalmars-d-learn]

Hi again,

I have this simple toy code :

import point;
import std.random;
import std.algorithm;
import std.functional;

void getRandomPoint(R)(R randVar, ref Point p)
{
      p.x = randVar;
      p.y = randVar;
      p.z = randVar;
}

void main()
{
      Point[500] points;
      auto randVar = uniform(0.0f, 1.0f);

      alias test = partial!(getRandomPoint, randVar);

      points.map!(test);
}

And get the following error :

kmeans_example.d(79): Error: template std.algorithm.iteration.map
cannot deduce function from argument types
!(partial)(Point[500]), candidates are:
/usr/include/dmd/phobos/std/algorithm/iteration.d(434):
std.algorithm.iteration.map(fun...) if (fun.length >= 1)

Btw, I don't understand why :

auto test = partial!(getRandomPoint, randVar);

dont work...partial doesnt return a delegate it seems...:/