How to create a UTF16 text file on Windows?

[Kagamin via Digitalmars-d-learn]

On Wednesday, 16 November 2016 at 22:43:55 UTC, lafoldes wrote:
> Hi,
> I'd like to create a UTF16 text file on Windows 7, using 
> std.stdio.File and std.stdio.File.write... functions (so no 
> binary write, no Win32 functions).
>
> I was experimenting with variations of this code…:
>
> import std.stdio;
>
> int main(string[] argv)
> {
>     auto output = File("wide_text.txt", "wt");
>     output.writeln!wstring("A"w);
>     return 0;
> }

What C runtime do you use?