Kevin Puetz : include: Fix undefined char16_t in C11.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: d45b3d4fdd7cbcfdba70c327ab90976a3b658da2
URL:    https://source.winehq.org/git/wine.git/?a=commit;h=d45b3d4fdd7cbcfdba70c327a...

Author: Kevin Puetz 
Date:   Thu Sep 24 10:12:09 2020 -0500

include: Fix undefined char16_t in C11.

In c++11 char16_t is a distinct fundamental type,
but in c11 it is merely a typedef in <uchar.h>.

Explicitly mention char16_t only in c++11 (where it is built-in),
otherwise define WCHAR as unsigned short (without naming char16_t)
and just hope that on C11 this matches u"..."

Remove WINE_UNICODE_CHAR16; it is now the default when supported.

Signed-off-by: Kevin Puetz 
Signed-off-by: Jacek Caban 
Signed-off-by: Alexandre Julliard

---

include/sqltypes.h | 2 +-
 include/tchar.h    | 2 +-
 include/winnt.h    | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/include/sqltypes.h b/include/sqltypes.h
index 0923f6b362..4c45de7e98 100644
--- a/include/sqltypes.h
+++ b/include/sqltypes.h
@@ -30,7 +30,7 @@ extern "C" {
 typedef unsigned char   SQLCHAR;
 #if defined(WINE_UNICODE_NATIVE)
 typedef wchar_t         SQLWCHAR;
-#elif defined(WINE_UNICODE_CHAR16)
+#elif __cpp_unicode_literals >= 200710
 typedef char16_t        SQLWCHAR;
 #else
 typedef unsigned short  SQLWCHAR;
diff --git a/include/tchar.h b/include/tchar.h
index 9fc4c72099..a8e64b4bf6 100644
--- a/include/tchar.h
+++ b/include/tchar.h
@@ -240,7 +240,7 @@ typedef unsigned short wctype_t;
 #ifndef __TCHAR_DEFINED
 #if defined(WINE_UNICODE_NATIVE)
 typedef wchar_t       _TCHAR;
-#elif defined(WINE_UNICODE_CHAR16)
+#elif __cpp_unicode_literals >= 200710
 typedef char16_t      _TCHAR;
 #else
 typedef unsigned short _TCHAR;
diff --git a/include/winnt.h b/include/winnt.h
index f59a63c041..10b3253923 100644
--- a/include/winnt.h
+++ b/include/winnt.h
@@ -462,7 +462,7 @@ typedef int             LONG,       *PLONG;
 /* Some systems might have wchar_t, but we really need 16 bit characters */
 #if defined(WINE_UNICODE_NATIVE)
 typedef wchar_t         WCHAR;
-#elif defined(WINE_UNICODE_CHAR16)
+#elif __cpp_unicode_literals >= 200710
 typedef char16_t        WCHAR;
 #else
 typedef unsigned short  WCHAR;