Array of structs construction

[bearophile]

timotheecour:

> Can't we simply use map, so as not to introduce new syntax?

This works today:

import std.algorithm, std.array, std.bigint;
void main() {
     auto data1 = [5, 6, 9].map!BigInt().array();
}

But literals like:

Ranged!(int,2,20)[] data2 = [5, 6, 9];

Are useful to make the code stronger, because the invariant of 
that Ranged is verified statically, despite data2 is not an enum. 
Right?

Bye,
bearophile