Re: Unicode functions

I think there is issue with _T(x).  I have this line in my Windows app
that I'm compiling with WineLib (I'm using -fshort-wchar):

const TCHAR *Name() const { return _T("my_name"); };

The compiler gives me an error of:

cannot convert `const __wchar_t *' to `const
TCHAR *' in return

It similarly complains about converting _T("foo") to a const WCHAR *.
Both of these things work under Windows.

Changing the definition of _T(x) from L##x to (TCHAR *) L##x avoids
these problems, but then something like _T("foo") _T("bar") doesn't
concatenate those strings like it does in Windows.

-Steve

--- [e-mail] wrote:
> Are _tprintf and it's related functions (_ftprintf,
> _stprintf) implemented?  I found a tchar.h in the
> source tree that defines these functions, but it
> wasn't in my /usr/local/include/wine directory.

I'm fixing the build process to install the header.
For now you can copy it manually to the
/usr/local/include/wine directory.
Actually _ftprintf and _stprintf are not functions,
but macros which are mapped in tchar.h to
corresponding ASCII or Unicode function. The
underlying functions should be implemented.
> These functions aren't important for wine, since
> they're simply defined as the ASCII or Unicode
> version, but they are important for WineLib.
>
> What is the overall status of using Unicode with
> WineLib?  What needs to be defined and what headers
> need to be included to get the functionality from
> Windows' tchar.h (_T(), TCHAR, the above functions,
> etc)?

Unicode is supported relatively well in Wine. Please
report if you have any issues with it.

Andriy

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Unicode functions

[Andriy Palamarchuk]

--- [e-mail] wrote:
> I think there is issue with _T(x).  I have this line
> in my Windows app
> that I'm compiling with WineLib (I'm using
> -fshort-wchar):
>
> const TCHAR *Name() const { return _T("my_name"); };
>
> The compiler gives me an error of:
>
> cannot convert `const __wchar_t *' to `const
> TCHAR *' in return
>
> It similarly complains about converting _T("foo") to
> a const WCHAR *.
> Both of these things work under Windows.
>
> Changing the definition of _T(x) from L##x to (TCHAR
> *) L##x avoids
> these problems, but then something like _T("foo")
> _T("bar") doesn't
> concatenate those strings like it does in Windows.
>
> -Steve

There are some issues with differences in compiler
Unicode strings support one has to work around using
Winelib. I'm not very good at it, probably other
developers can give you more information.

Did you check out the Winelib User's Guide:
http://www.winehq.org/docs/winelib-user/unicode.shtml

Andriy

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[Francois Gouget]

On Thu, 12 Sep 2002 [e-mail] wrote:
> I think there is issue with _T(x).  I have this line in my Windows app
> that I'm compiling with WineLib (I'm using -fshort-wchar):
>
> const TCHAR *Name() const { return _T("my_name"); };
>
> The compiler gives me an error of:
>
> cannot convert `const __wchar_t *' to `const
> TCHAR *' in return

If you are using --fshort-wchar you should also use WINE_UNICODE_NATIVE
so that WCHAR gets defined to wchar_t. From winnt.h:

#ifdef WINE_UNICODE_NATIVE
typedef wchar_t         WCHAR,      *PWCHAR;
#else
typedef unsigned short  WCHAR,      *PWCHAR;
#endif

and further down:

/* Define WINE_UNICODE_NATIVE if:
 * - your compiler provides a 16bit wchar_t type, e.g. gcc >= 2.96 with
 *   -fshort-wchar option
 * - or if you decide to use the native 32bit Unix wchar_t type. Be aware
 *   though that the Wine APIs only support 16bit WCHAR characters for
 *   binary compatibility reasons.
 * - or define nothing at all if you don't use Unicode, and blissfully
 *   ignore the issue :-)
 */

Does that help?

--
Francois Gouget         [e-mail]        http://fgouget.free.fr/
May your Tongue stick to the Roof of your Mouth with the Force of a Thousand Caramels.