Copying copy?

[Dicebot]

On Friday, 26 July 2013 at 14:46:23 UTC, bearophile wrote:
> import std.range, std.algorithm;
> void main() {
>     char[5] arr;
>     auto r = 5.iota.map!(i => cast(char)(i + 'a'));
>     static assert(is(typeof(r.front) == char)); // OK
>     r.copy(arr[]); // error
> }

Not possible, front is 'dchar' for char arrays:

import std.array;
void main()
{
	char[5] arr;
	pragma(msg, typeof(arr.front));
         // dchar
}