On 2/17/21 11:29 PM Greg Ercolano wrote:
>
> On 2/17/21 2:12 PM, Albrecht Schlosser wrote:
>> On 2/17/21 10:43 PM Greg Ercolano wrote:
>>>      I was able to get _wopen() to work in mingw by modifying that
>>> program to use a wchar_t string,
>>
>> How? Did you convert the UTF-8 string or how did you provide a wchar_t
>> string? Which encoding?
>> Maybe with L"string" syntax? Yes, that would be UTF-16 encoded and
>> work with _wopen().
>
>      I used this:
>
>      // Assumes cwd contains the UTF8-???? subdirectory
>      // UTF8 -> WIDECHAR
>      wchar_t wcfilename[] = L"./UTF8-作藩于外/foo/foo.txt";
>      if ( (fd = _wopen(wcfilename, O_RDONLY)) == -1 ) {  // Visual
> Studio wide char open()
>          printf("_wopen() failed\n");
>          return 1;
>      }

Ah, yes, L"./UTF8-作藩于外/foo/foo.txt" is what I expected.

>      While that worked with mingw, it didn't with VS for some reason,
> not sure why.

Neither do I. And I won't try!

>      Might have been a missing compiler flag; I just used "CL /TP
> foo.cxx" to build it,
>      but perhaps VS needs some coercion to comprehend inline utf8.

Maybe you need to define "Unicode" (how exactly I do not know). It's
always a mystery...

>      I don't think I'm going to take on creating the wrapper, as I don't
> know enough
>      about the ins and outs of all the details to make it do the right
> thing at the right time..

I can do it and I can also test it on my systems. There are enough
examples like fl_access() to show how to do it (assuming fl_access() is
doing it right).

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