Compilation fix for gcc-4 and newer.

[wxWidgets.git] / include / wx / chartype.h

diff --git a/include/wx/chartype.h b/include/wx/chartype.h
index a9e2dee8928bdb1e1fbc0984b82ef81fa98e181c..73606a61e0f714d18dee40b5f687c1df6aeb6272 100644 (file)
--- a/include/wx/chartype.h
+++ b/include/wx/chartype.h
@@ -38,8 +38,8 @@
 #endif /* !defined(wxUSE_WCHAR_T) */
 
 /* Unicode support requires wchar_t */
-#if wxUSE_UNICODE && !wxUSE_WCHAR_T
-    #error "wchar_t must be available in Unicode build"
+#if !wxUSE_WCHAR_T
+    #error "wchar_t must be available"
 #endif /* Unicode */
 
 /*
@@ -145,7 +145,7 @@
     typedef char wxChar;
     typedef signed char wxSChar;
     typedef unsigned char wxUChar;
-#else /* Unicode */
+#else
     /* VZ: note that VC++ defines _T[SU]CHAR simply as wchar_t and not as    */
     /*     signed/unsigned version of it which (a) makes sense to me (unlike */
     /*     char wchar_t is always unsigned) and (b) was how the previous     */
@@ -190,7 +190,7 @@
 /* depending on the platform, Unicode build can either store wxStrings as
    wchar_t* or UTF-8 encoded char*: */
 #if wxUSE_UNICODE
-    // FIXME-UTF8: what would be better place for this?
+    /* FIXME-UTF8: what would be better place for this? */
     #if defined(wxUSE_UTF8_LOCALE_ONLY) && !defined(wxUSE_UNICODE_UTF8)
         #error "wxUSE_UTF8_LOCALE_ONLY only makes sense with wxUSE_UNICODE_UTF8"
     #endif
@@ -214,11 +214,9 @@
 #endif
 
 /* define char type used by wxString internal representation: */
-#if wxUSE_UNICODE_UTF8
-    typedef char wxStringCharType;
-#elif wxUSE_UNICODE_WCHAR
+#if wxUSE_UNICODE_WCHAR
     typedef wchar_t wxStringCharType;
-#else
+#else /* wxUSE_UNICODE_UTF8 || ANSI */
     typedef char wxStringCharType;
 #endif
 
@@ -243,6 +241,18 @@
     #endif /* ASCII/Unicode */
 #endif /* !defined(_T) */
 
+/*
+   wxS ("wx string") macro can be used to create literals using the same
+   representation as wxString does internally, i.e. wchar_t in Unicode build
+   under Windows or char in UTF-8-based Unicode builds and (deprecated) ANSI
+   builds everywhere (see wxStringCharType definition above).
+ */
+#if wxUSE_UNICODE_WCHAR
+    #define wxS(x) wxCONCAT_HELPER(L, x)
+#else /* wxUSE_UNICODE_UTF8 || ANSI */
+    #define wxS(x) x
+#endif
+
 /* although global macros with such names are normally bad, we want to have  */
 /* another name for _T() which should be used to avoid confusion between     */
 /* _T() and _() in wxWidgets sources */