fromStringz for wide characters

[Jonathan M Davis via Digitalmars-d-learn]

On Tuesday, September 05, 2017 08:15:04 John Burton via Digitalmars-d-learn 
wrote:
> std.string.fromStringz will create me a string from a null
> terminated array of characters. But I have a zero terminated
> array of "short"s (from a win32 api call) which I'd like to turn
> into a wstring. But there doesn't seem to be a function to do
> this.
>
> Do I need to write my own, or am I missing something?

I'm fairly certain that to!wstring will do it, but it will definitely
allocate, whereas fromStringz just slices what it's given. I don't think
that there's currently a wchar equivalent to fromStringz, but it would be
pretty trivial to write if you didn't want to use to!wstring. fromStringz is
just

    return cString ? cString[0 .. strlen(cString)] : null;

and all you'd have to do would be to replace strlen with wcslen from
core.stdc.wchar_. There's a decent chance that you'll want to allocate the
string though, in which case to!wstring would be the right choice.

- Jonathan M Davis