On Tuesday, 5 September 2017 at 08:39:37 UTC, Jonathan M Davis
wrote:
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.
Thank you. I wanted something that didn't allocate in this case.
The underlying storage will be kept for other reasons so I might
as well have a string that just refers to the data contained in
it.
I had done something like you suggested, but wondered if I'd
missed something given the existence of a function for byte
strings.
