How to use encode and decode of std.utf

[ag0aep6g via Digitalmars-d-learn]

On 09/09/2017 11:54 PM, solidstate1991 wrote:
> There's not much deep documentation about the functions, and I'm 
> interested if it can decode into UTF16 from UTF8.

toUTF16 can transcode from UTF-8. As linked there, byUTF!wchar does the 
same but lazily.

----
import std.utf;
string s8 = "foobär"; /* UTF-8 */
wstring s16_eager = s8.toUTF16; /* UTF-16 */
auto s16_lazy = s8.byUTF!wchar; /* also UTF-16, but a range */
----