// D version, with std.algorithm
// ~ 281 ms, using dmd 2.051 (dmd -O -release -inline)

import std.algorithm;
import std.stdio;
import std.range;

void main() {
    auto L = iota(0.0, 10000000.0);

    auto L2 = map!"a / 2"(L);
    auto L3 = map!"a + 2"(L2);
    //using the reduce form with a seed makes it slower by ~25%, why?
    auto V = reduce!"a + b"(L3);

    //using proper delegate literals makes it slower! (program runs in ~ 314 ms)
    /+
    auto L2 = map!((a) { return a / 2; })(L);
    auto L3 = map!((a) { return a + 2; })(L2);
    auto V = reduce!((a, b) { return a + b; })(L3);
    +/

    writefln("%f", V);
}