[LLVMdev] request for windows unicode support

[Jochen Wilhelmy]

> Can't you just store filenames as UTF8 (like you do on Linux), and
> convert UTF8 to widechar just when calling the windows APIs?
> Same for converting back directory listings as such, you get widechar,
> and convert back to UTF8.
> All you would need to do is implement that conversion in System/Win32,
> I think MultiByteToWideChar supports UTF8, doesn't it?
>    
I would think the most efficient approach is to use utf16 (i.e. wchar_t) 
internally on windows
(ohterwise utf8). Then if a path is used multiple times no conversion 
takes place. The conversion only
takes place at creation time when you create a path from utf8.

even if you have reasons not to use it, you should have a look at
www.boost.org/doc/libs/1_45_0/libs/filesystem/v3/doc/index.htm
www.boost.org/doc/libs/1_45_0/libs/filesystem/v3/doc/v3_design.html

-Jochen