Document wxKill(wxSIGTERM) reliance on having an open window in wxMSW.

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

diff --git a/include/wx/strvararg.h b/include/wx/strvararg.h
index 55eb9c01f23e9a18215b6be268df30124c98093e..8f2d16551ecc25c592cd497274ef276b1d149699 100644 (file)
--- a/include/wx/strvararg.h
+++ b/include/wx/strvararg.h
@@ -16,13 +16,24 @@
     #error "OpenWatcom version >= 1.4 is required to compile this code"
 #endif
 
     #error "OpenWatcom version >= 1.4 is required to compile this code"
 #endif
 

+#include "wx/cpp.h"

 #include "wx/chartype.h"
 #include "wx/chartype.h"

+#include "wx/strconv.h"
+#include "wx/buffer.h"
+#include "wx/unichar.h"

 
 

-class WXDLLIMPEXP_BASE wxCStrData;
-class WXDLLIMPEXP_BASE wxString;
-class WXDLLIMPEXP_BASE wxCharBuffer;
-class WXDLLIMPEXP_BASE wxWCharBuffer;
+#if defined(HAVE_TYPE_TRAITS)
+    #include <type_traits>
+#elif defined(HAVE_TR1_TYPE_TRAITS)
+    #ifdef __VISUALC__
+        #include <type_traits>
+    #else
+        #include <tr1/type_traits>
+    #endif
+#endif

 
 

+class WXDLLIMPEXP_FWD_BASE wxCStrData;
+class WXDLLIMPEXP_FWD_BASE wxString;

 
 // ----------------------------------------------------------------------------
 // WX_DEFINE_VARARG_FUNC* macros
 
 // ----------------------------------------------------------------------------
 // WX_DEFINE_VARARG_FUNC* macros


@@ -35,174 +46,827 @@ class WXDLLIMPEXP_BASE wxWCharBuffer;
 //
 // This is done by defining a set of N template function taking 1..N arguments
 // (currently, N is set to 30 in this header). These functions are just thin
 //
 // This is done by defining a set of N template function taking 1..N arguments
 // (currently, N is set to 30 in this header). These functions are just thin

-// wrappers around another variadic function (@a impl) and the only thing
-// the wrapper does is that it normalizes the arguments passed in so that
-// they are of the type expected by variadic functions taking string
-// arguments, i.e., char* or wchar_t*, depending on the build:
+// wrappers around another variadic function ('impl' or 'implUtf8' arguments,
+// see below) and the only thing the wrapper does is that it normalizes the
+// arguments passed in so that they are of the type expected by variadic
+// functions taking string arguments, i.e., char* or wchar_t*, depending on the
+// build:

 //   * char* in the current locale's charset in ANSI build
 //   * char* in the current locale's charset in ANSI build

-//   * whchar_t* in the Unicode build
+//   * char* with UTF-8 encoding if wxUSE_UNICODE_UTF8 and the app is running
+//     under an UTF-8 locale
+//   * wchar_t* if wxUSE_UNICODE_WCHAR or if wxUSE_UNICODE_UTF8 and the current
+//     locale is not UTF-8
+//
+// Note that wxFormatString *must* be used for the format parameter of these
+// functions, otherwise the implementation won't work correctly. Furthermore,
+// it must be passed by value, not reference, because it's modified by the
+// vararg templates internally.

 //
 // Parameters:
 //
 // Parameters:

-//        rettype   Functions' return type.
-//        name      Name of the function.
-//        impl      Name of the variadic function that implements 'name'.
-#define WX_DEFINE_VARARG_FUNC(rettype, name, impl)                        \
-        _WX_VARARG_ITER(_WX_VARARG_MAX_ARGS,                              \
-                        _WX_VARARG_DEFINE_FUNC,                           \
-                        rettype, name, impl)
+// [ there are examples in square brackets showing values of the parameters
+//   for the wxFprintf() wrapper for fprintf() function with the following
+//   prototype:
+//   int wxFprintf(FILE *stream, const wxString& format, ...); ]
+//
+//        rettype   Functions' return type  [int]
+//        name      Name of the function  [fprintf]
+//        numfixed  The number of leading "fixed" (i.e., not variadic)
+//                  arguments of the function (e.g. "stream" and "format"
+//                  arguments of fprintf()); their type is _not_ converted
+//                  using wxArgNormalizer<T>, unlike the rest of
+//                  the function's arguments  [2]
+//        fixed     List of types of the leading "fixed" arguments, in
+//                  parenthesis  [(FILE*,const wxString&)]
+//        impl      Name of the variadic function that implements 'name' for
+//                  the native strings representation (wchar_t* if
+//                  wxUSE_UNICODE_WCHAR or wxUSE_UNICODE_UTF8 when running under
+//                  non-UTF8 locale, char* in ANSI build)  [wxCrt_Fprintf]
+//        implUtf8  Like 'impl', but for the UTF-8 char* version to be used
+//                  if wxUSE_UNICODE_UTF8 and running under UTF-8 locale
+//                  (ignored otherwise)  [fprintf]
+//
+#define WX_DEFINE_VARARG_FUNC(rettype, name, numfixed, fixed, impl, implUtf8) \
+    _WX_VARARG_DEFINE_FUNC_N0(rettype, name, impl, implUtf8, numfixed, fixed) \
+    WX_DEFINE_VARARG_FUNC_SANS_N0(rettype, name, numfixed, fixed, impl, implUtf8)
+
+// ditto, but without the version with 0 template/vararg arguments
+#define WX_DEFINE_VARARG_FUNC_SANS_N0(rettype, name,                          \
+                                       numfixed, fixed, impl, implUtf8)       \
+    _WX_VARARG_ITER(_WX_VARARG_MAX_ARGS,                                      \
+                    _WX_VARARG_DEFINE_FUNC,                                   \
+                    rettype, name, impl, implUtf8, numfixed, fixed)

 
 // Like WX_DEFINE_VARARG_FUNC, but for variadic functions that don't return
 // a value.
 
 // Like WX_DEFINE_VARARG_FUNC, but for variadic functions that don't return
 // a value.

-#define WX_DEFINE_VARARG_FUNC_VOID(name, impl)                            \
-        _WX_VARARG_ITER(_WX_VARARG_MAX_ARGS,                              \
-                        _WX_VARARG_DEFINE_FUNC_VOID,                      \
-                        void, name, impl)
+#define WX_DEFINE_VARARG_FUNC_VOID(name, numfixed, fixed, impl, implUtf8)     \
+    _WX_VARARG_DEFINE_FUNC_VOID_N0(name, impl, implUtf8, numfixed, fixed)     \
+    _WX_VARARG_ITER(_WX_VARARG_MAX_ARGS,                                      \
+                    _WX_VARARG_DEFINE_FUNC_VOID,                              \
+                    void, name, impl, implUtf8, numfixed, fixed)

 
 // Like WX_DEFINE_VARARG_FUNC_VOID, but instead of wrapping an implementation
 // function, does nothing in defined functions' bodies.
 //
 // Used to implement wxLogXXX functions if wxUSE_LOG=0.
 
 // Like WX_DEFINE_VARARG_FUNC_VOID, but instead of wrapping an implementation
 // function, does nothing in defined functions' bodies.
 //
 // Used to implement wxLogXXX functions if wxUSE_LOG=0.

-#define WX_DEFINE_VARARG_FUNC_NOP(name)                                   \
-        _WX_VARARG_ITER(_WX_VARARG_MAX_ARGS,                              \
-                        _WX_VARARG_DEFINE_FUNC_NOP,                       \
-                        void, name, dummy)
+#define WX_DEFINE_VARARG_FUNC_NOP(name, numfixed, fixed)                      \
+        _WX_VARARG_DEFINE_FUNC_NOP_N0(name, numfixed, fixed)                  \
+        _WX_VARARG_ITER(_WX_VARARG_MAX_ARGS,                                  \
+                        _WX_VARARG_DEFINE_FUNC_NOP,                           \
+                        void, name, dummy, dummy, numfixed, fixed)
+
+// Like WX_DEFINE_VARARG_FUNC_CTOR, but for defining template constructors
+#define WX_DEFINE_VARARG_FUNC_CTOR(name, numfixed, fixed, impl, implUtf8)     \
+    _WX_VARARG_DEFINE_FUNC_CTOR_N0(name, impl, implUtf8, numfixed, fixed)     \
+    _WX_VARARG_ITER(_WX_VARARG_MAX_ARGS,                                      \
+                    _WX_VARARG_DEFINE_FUNC_CTOR,                              \
+                    void, name, impl, implUtf8, numfixed, fixed)
+

 
 // ----------------------------------------------------------------------------
 
 // ----------------------------------------------------------------------------

-// implementation
+// wxFormatString

 // ----------------------------------------------------------------------------
 
 // ----------------------------------------------------------------------------
 

+// This class must be used for format string argument of the functions
+// defined using WX_DEFINE_VARARG_FUNC_* macros. It converts the string to
+// char* or wchar_t* for passing to implementation function efficiently (i.e.
+// without keeping the converted string in memory for longer than necessary,
+// like c_str()). It also converts format string to the correct form that
+// accounts for string changes done by wxArgNormalizer<>
+//
+// Note that this class can _only_ be used for function arguments!
+class WXDLLIMPEXP_BASE wxFormatString
+{
+public:
+    wxFormatString(const char *str)
+        : m_char(wxScopedCharBuffer::CreateNonOwned(str)), m_str(NULL), m_cstr(NULL) {}
+    wxFormatString(const wchar_t *str)
+        : m_wchar(wxScopedWCharBuffer::CreateNonOwned(str)), m_str(NULL), m_cstr(NULL) {}
+    wxFormatString(const wxString& str)
+        : m_str(&str), m_cstr(NULL) {}
+    wxFormatString(const wxCStrData& str)
+        : m_str(NULL), m_cstr(&str) {}
+    wxFormatString(const wxScopedCharBuffer& str)
+        : m_char(str), m_str(NULL), m_cstr(NULL)  {}
+    wxFormatString(const wxScopedWCharBuffer& str)
+        : m_wchar(str), m_str(NULL), m_cstr(NULL) {}
+
+    // Possible argument types. These are or-combinable for wxASSERT_ARG_TYPE
+    // convenience. Some of the values are or-combined with another value, this
+    // expresses "supertypes" for use with wxASSERT_ARG_TYPE masks. For example,
+    // a char* string is also a pointer and an integer is also a char.
+    enum ArgumentType
+    {
+        Arg_Char        = 0x0001,    // character as char %c
+        Arg_Pointer     = 0x0002,    // %p
+        Arg_String      = 0x0004 | Arg_Pointer, // any form of string (%s and %p too)
+
+        Arg_Int         = 0x0008 | Arg_Char, // (ints can be used with %c)
+#if SIZEOF_INT == SIZEOF_LONG
+        Arg_LongInt     = Arg_Int,
+#else
+        Arg_LongInt     = 0x0010,
+#endif
+#if defined(SIZEOF_LONG_LONG) && SIZEOF_LONG_LONG == SIZEOF_LONG
+        Arg_LongLongInt = Arg_LongInt,
+#elif defined(wxLongLong_t)
+        Arg_LongLongInt = 0x0020,
+#endif
+
+        Arg_Double      = 0x0040,
+        Arg_LongDouble  = 0x0080,
+
+#if defined(wxSIZE_T_IS_UINT)
+        Arg_Size_t      = Arg_Int,
+#elif defined(wxSIZE_T_IS_ULONG)
+        Arg_Size_t      = Arg_LongInt,
+#elif defined(SIZEOF_LONG_LONG) && SIZEOF_SIZE_T == SIZEOF_LONG_LONG
+        Arg_Size_t      = Arg_LongLongInt,
+#else
+        Arg_Size_t      = 0x0100,
+#endif
+
+        Arg_IntPtr      = 0x0200,    // %n -- store # of chars written
+        Arg_ShortIntPtr = 0x0400,
+        Arg_LongIntPtr  = 0x0800,
+
+        Arg_Unknown     = 0x8000     // unrecognized specifier (likely error)
+    };
+
+    // returns the type of format specifier for n-th variadic argument (this is
+    // not necessarily n-th format specifier if positional specifiers are used);
+    // called by wxArgNormalizer<> specializations to get information about
+    // n-th variadic argument desired representation
+    ArgumentType GetArgumentType(unsigned n) const;
+
+    // returns the value passed to ctor, only converted to wxString, similarly
+    // to other InputAsXXX() methods
+    wxString InputAsString() const;
+
+#if !wxUSE_UNICODE_WCHAR
+    operator const char*() const
+        { return const_cast<wxFormatString*>(this)->AsChar(); }
+private:
+    // InputAsChar() returns the value passed to ctor, only converted
+    // to char, while AsChar() takes the string returned by InputAsChar()
+    // and does format string conversion on it as well (and similarly for
+    // ..AsWChar() below)
+    const char* InputAsChar();
+    const char* AsChar();
+    wxScopedCharBuffer m_convertedChar;
+#endif // !wxUSE_UNICODE_WCHAR
+
+#if wxUSE_UNICODE && !wxUSE_UTF8_LOCALE_ONLY
+public:
+    operator const wchar_t*() const
+        { return const_cast<wxFormatString*>(this)->AsWChar(); }
+private:
+    const wchar_t* InputAsWChar();
+    const wchar_t* AsWChar();
+    wxScopedWCharBuffer m_convertedWChar;
+#endif // wxUSE_UNICODE && !wxUSE_UTF8_LOCALE_ONLY
+
+private:
+    wxScopedCharBuffer  m_char;
+    wxScopedWCharBuffer m_wchar;
+
+    // NB: we can use a pointer here, because wxFormatString is only used
+    //     as function argument, so it has shorter life than the string
+    //     passed to the ctor
+    const wxString * const m_str;
+    const wxCStrData * const m_cstr;
+
+    wxDECLARE_NO_ASSIGN_CLASS(wxFormatString);
+};
+
+// these two helper classes are used to find wxFormatString argument among fixed
+// arguments passed to a vararg template
+struct wxFormatStringArgument
+{
+    wxFormatStringArgument(const wxFormatString *s = NULL) : m_str(s) {}
+    const wxFormatString *m_str;
+
+    // overriding this operator allows us to reuse _WX_VARARG_JOIN macro
+    wxFormatStringArgument operator,(const wxFormatStringArgument& a) const
+    {
+        wxASSERT_MSG( m_str == NULL || a.m_str == NULL,
+                      "can't have two format strings in vararg function" );
+        return wxFormatStringArgument(m_str ? m_str : a.m_str);
+    }
+
+    operator const wxFormatString*() const { return m_str; }
+};
+
+template<typename T>
+struct wxFormatStringArgumentFinder
+{
+    static wxFormatStringArgument find(T)
+    {
+        // by default, arguments are not format strings, so return "not found"
+        return wxFormatStringArgument();
+    }
+};
+
+template<>
+struct wxFormatStringArgumentFinder<const wxFormatString&>
+{
+    static wxFormatStringArgument find(const wxFormatString& arg)
+        { return wxFormatStringArgument(&arg); }
+};
+
+template<>
+struct wxFormatStringArgumentFinder<wxFormatString>
+    : public wxFormatStringArgumentFinder<const wxFormatString&> {};
+
+// avoid passing big objects by value to wxFormatStringArgumentFinder::find()
+// (and especially wx[W]CharBuffer with its auto_ptr<> style semantics!):
+template<>
+struct wxFormatStringArgumentFinder<wxString>
+    : public wxFormatStringArgumentFinder<const wxString&> {};
+
+template<>
+struct wxFormatStringArgumentFinder<wxScopedCharBuffer>
+    : public wxFormatStringArgumentFinder<const wxScopedCharBuffer&> {};
+
+template<>
+struct wxFormatStringArgumentFinder<wxScopedWCharBuffer>
+    : public wxFormatStringArgumentFinder<const wxScopedWCharBuffer&> {};
+
+template<>
+struct wxFormatStringArgumentFinder<wxCharBuffer>
+    : public wxFormatStringArgumentFinder<const wxCharBuffer&> {};
+
+template<>
+struct wxFormatStringArgumentFinder<wxWCharBuffer>
+    : public wxFormatStringArgumentFinder<const wxWCharBuffer&> {};
+
+
+// ----------------------------------------------------------------------------
+// wxArgNormalizer*<T> converters
+// ----------------------------------------------------------------------------
+
+#if wxDEBUG_LEVEL
+    // Check that the format specifier for index-th argument in 'fmt' has
+    // the correct type (one of wxFormatString::Arg_XXX or-combination in
+    // 'expected_mask').
+    #define wxASSERT_ARG_TYPE(fmt, index, expected_mask)                    \
+        wxSTATEMENT_MACRO_BEGIN                                             \
+            if ( !fmt )                                                     \
+                break;                                                      \
+            const int argtype = fmt->GetArgumentType(index);                \
+            wxASSERT_MSG( (argtype & (expected_mask)) == argtype,           \
+                          "format specifier doesn't match argument type" ); \
+        wxSTATEMENT_MACRO_END
+#else
+    // Just define it to suppress "unused parameter" warnings for the
+    // parameters which we don't use otherwise
+    #define wxASSERT_ARG_TYPE(fmt, index, expected_mask)                      \
+        wxUnusedVar(fmt);                                                     \
+        wxUnusedVar(index)
+#endif // wxDEBUG_LEVEL/!wxDEBUG_LEVEL
+
+
+#if defined(HAVE_TYPE_TRAITS) || defined(HAVE_TR1_TYPE_TRAITS)
+
+// Note: this type is misnamed, so that the error message is easier to
+// understand (no error happens for enums, because the IsEnum=true case is
+// specialized).
+template<bool IsEnum>
+struct wxFormatStringSpecifierNonPodType {};
+
+template<>
+struct wxFormatStringSpecifierNonPodType<true>
+{
+    enum { value = wxFormatString::Arg_Int };
+};
+
+template<typename T>
+struct wxFormatStringSpecifier
+{
+#ifdef HAVE_TYPE_TRAITS
+    typedef std::is_enum<T> is_enum;
+#elif defined HAVE_TR1_TYPE_TRAITS
+    typedef std::tr1::is_enum<T> is_enum;
+#endif
+    enum { value = wxFormatStringSpecifierNonPodType<is_enum::value>::value };
+};
+
+#else // !HAVE_(TR1_)TYPE_TRAITS
+
+template<typename T>
+struct wxFormatStringSpecifier
+{
+    // We can't detect enums without is_enum, so the only thing we can
+    // do is to accept unknown types. However, the only acceptable unknown
+    // types still are enums, which are promoted to ints, so return Arg_Int
+    // here. This will at least catch passing of non-POD types through ... at
+    // runtime.
+    //
+    // Furthermore, if the compiler doesn't have partial template
+    // specialization, we didn't cover pointers either.
+#ifdef HAVE_PARTIAL_SPECIALIZATION
+    enum { value = wxFormatString::Arg_Int };
+#else
+    enum { value = wxFormatString::Arg_Int | wxFormatString::Arg_Pointer };
+#endif
+};
+
+#endif // HAVE_TR1_TYPE_TRAITS/!HAVE_TR1_TYPE_TRAITS
+
+
+#ifdef HAVE_PARTIAL_SPECIALIZATION
+template<typename T>
+struct wxFormatStringSpecifier<T*>
+{
+    enum { value = wxFormatString::Arg_Pointer };
+};
+
+template<typename T>
+struct wxFormatStringSpecifier<const T*>
+{
+    enum { value = wxFormatString::Arg_Pointer };
+};
+#endif // !HAVE_PARTIAL_SPECIALIZATION
+
+
+#define wxFORMAT_STRING_SPECIFIER(T, arg)                                   \
+    template<> struct wxFormatStringSpecifier<T>                            \
+    {                                                                       \
+        enum { value = arg };                                               \
+    };
+
+wxFORMAT_STRING_SPECIFIER(bool, wxFormatString::Arg_Int)
+wxFORMAT_STRING_SPECIFIER(int, wxFormatString::Arg_Int)
+wxFORMAT_STRING_SPECIFIER(unsigned int, wxFormatString::Arg_Int)
+wxFORMAT_STRING_SPECIFIER(short int, wxFormatString::Arg_Int)
+wxFORMAT_STRING_SPECIFIER(short unsigned int, wxFormatString::Arg_Int)
+wxFORMAT_STRING_SPECIFIER(long int, wxFormatString::Arg_LongInt)
+wxFORMAT_STRING_SPECIFIER(long unsigned int, wxFormatString::Arg_LongInt)
+#ifdef wxLongLong_t
+wxFORMAT_STRING_SPECIFIER(wxLongLong_t, wxFormatString::Arg_LongLongInt)
+wxFORMAT_STRING_SPECIFIER(wxULongLong_t, wxFormatString::Arg_LongLongInt)
+#endif
+wxFORMAT_STRING_SPECIFIER(float, wxFormatString::Arg_Double)
+wxFORMAT_STRING_SPECIFIER(double, wxFormatString::Arg_Double)
+wxFORMAT_STRING_SPECIFIER(long double, wxFormatString::Arg_LongDouble)
+
+#if wxWCHAR_T_IS_REAL_TYPE
+wxFORMAT_STRING_SPECIFIER(wchar_t, wxFormatString::Arg_Char | wxFormatString::Arg_Int)
+#endif
+
+#if !wxUSE_UNICODE
+wxFORMAT_STRING_SPECIFIER(char, wxFormatString::Arg_Char | wxFormatString::Arg_Int)
+wxFORMAT_STRING_SPECIFIER(signed char, wxFormatString::Arg_Char | wxFormatString::Arg_Int)
+wxFORMAT_STRING_SPECIFIER(unsigned char, wxFormatString::Arg_Char | wxFormatString::Arg_Int)
+#endif
+
+wxFORMAT_STRING_SPECIFIER(char*, wxFormatString::Arg_String)
+wxFORMAT_STRING_SPECIFIER(unsigned char*, wxFormatString::Arg_String)
+wxFORMAT_STRING_SPECIFIER(signed char*, wxFormatString::Arg_String)
+wxFORMAT_STRING_SPECIFIER(const char*, wxFormatString::Arg_String)
+wxFORMAT_STRING_SPECIFIER(const unsigned char*, wxFormatString::Arg_String)
+wxFORMAT_STRING_SPECIFIER(const signed char*, wxFormatString::Arg_String)
+wxFORMAT_STRING_SPECIFIER(wchar_t*, wxFormatString::Arg_String)
+wxFORMAT_STRING_SPECIFIER(const wchar_t*, wxFormatString::Arg_String)
+
+wxFORMAT_STRING_SPECIFIER(int*, wxFormatString::Arg_IntPtr | wxFormatString::Arg_Pointer)
+wxFORMAT_STRING_SPECIFIER(short int*, wxFormatString::Arg_ShortIntPtr | wxFormatString::Arg_Pointer)
+wxFORMAT_STRING_SPECIFIER(long int*, wxFormatString::Arg_LongIntPtr | wxFormatString::Arg_Pointer)
+
+#undef wxFORMAT_STRING_SPECIFIER
+
+

 // Converts an argument passed to wxPrint etc. into standard form expected,
 // by wxXXX functions, e.g. all strings (wxString, char*, wchar_t*) are
 // converted into wchar_t* or char* depending on the build.
 template<typename T>
 struct wxArgNormalizer
 {
 // Converts an argument passed to wxPrint etc. into standard form expected,
 // by wxXXX functions, e.g. all strings (wxString, char*, wchar_t*) are
 // converted into wchar_t* or char* depending on the build.
 template<typename T>
 struct wxArgNormalizer
 {

-    wxArgNormalizer(const T& value) : m_value(value) {}
+    // Ctor. 'value' is the value passed as variadic argument, 'fmt' is pointer
+    // to printf-like format string or NULL if the variadic function doesn't
+    // use format string and 'index' is index of 'value' in variadic arguments
+    // list (starting at 1)
+    wxArgNormalizer(T value,
+                    const wxFormatString *fmt, unsigned index)
+        : m_value(value)
+    {
+        wxASSERT_ARG_TYPE( fmt, index, wxFormatStringSpecifier<T>::value );
+    }

 
     // Returns the value in a form that can be safely passed to real vararg
     // functions. In case of strings, this is char* in ANSI build and wchar_t*
     // in Unicode build.
 
     // Returns the value in a form that can be safely passed to real vararg
     // functions. In case of strings, this is char* in ANSI build and wchar_t*
     // in Unicode build.

-    const T& get() const { return m_value; }
+    T get() const { return m_value; }

 
 

-    const T& m_value;
+    T m_value;

 };
 
 };
 

+// normalizer for passing arguments to functions working with wchar_t* (and
+// until ANSI build is removed, char* in ANSI build as well - FIXME-UTF8)
+// string representation
+#if !wxUSE_UTF8_LOCALE_ONLY
+template<typename T>
+struct wxArgNormalizerWchar : public wxArgNormalizer<T>
+{
+    wxArgNormalizerWchar(T value,
+                         const wxFormatString *fmt, unsigned index)
+        : wxArgNormalizer<T>(value, fmt, index) {}
+};
+#endif // !wxUSE_UTF8_LOCALE_ONLY
+
+// normalizer for passing arguments to functions working with UTF-8 encoded
+// char* strings
+#if wxUSE_UNICODE_UTF8
+    template<typename T>
+    struct wxArgNormalizerUtf8 : public wxArgNormalizer<T>
+    {
+        wxArgNormalizerUtf8(T value,
+                            const wxFormatString *fmt, unsigned index)
+            : wxArgNormalizer<T>(value, fmt, index) {}
+    };
+
+    #define wxArgNormalizerNative wxArgNormalizerUtf8
+#else // wxUSE_UNICODE_WCHAR
+    #define wxArgNormalizerNative wxArgNormalizerWchar
+#endif // wxUSE_UNICODE_UTF8 // wxUSE_UNICODE_UTF8
+
+
+

 // special cases for converting strings:
 
 // special cases for converting strings:
 

+
+// base class for wxArgNormalizer<T> specializations that need to do conversion;
+// CharType is either wxStringCharType or wchar_t in UTF-8 build when wrapping
+// widechar CRT function
+template<typename CharType>
+struct wxArgNormalizerWithBuffer
+{
+    typedef wxScopedCharTypeBuffer<CharType> CharBuffer;
+
+    wxArgNormalizerWithBuffer() {}
+    wxArgNormalizerWithBuffer(const CharBuffer& buf,
+                              const wxFormatString *fmt,
+                              unsigned index)
+        : m_value(buf)
+    {
+        wxASSERT_ARG_TYPE( fmt, index, wxFormatString::Arg_String );
+    }
+
+    const CharType *get() const { return m_value; }
+
+    CharBuffer m_value;
+};
+
+// string objects:
+template<>
+struct WXDLLIMPEXP_BASE wxArgNormalizerNative<const wxString&>
+{
+    wxArgNormalizerNative(const wxString& s,
+                          const wxFormatString *fmt,
+                          unsigned index)
+        : m_value(s)
+    {
+        wxASSERT_ARG_TYPE( fmt, index, wxFormatString::Arg_String );
+    }
+
+    const wxStringCharType *get() const;
+
+    const wxString& m_value;
+};
+
+// c_str() values:

 template<>
 template<>

-struct WXDLLIMPEXP_BASE wxArgNormalizer<const wxCStrData&>
+struct WXDLLIMPEXP_BASE wxArgNormalizerNative<const wxCStrData&>

 {
 {

-    wxArgNormalizer(const wxCStrData& value) : m_value(value) {}
-    const wxChar *get() const; // FIXME-UTF8: should be wxStringCharType
+    wxArgNormalizerNative(const wxCStrData& value,
+                          const wxFormatString *fmt,
+                          unsigned index)
+        : m_value(value)
+    {
+        wxASSERT_ARG_TYPE( fmt, index, wxFormatString::Arg_String );
+    }
+
+    const wxStringCharType *get() const;

 
     const wxCStrData& m_value;
 };
 
 
     const wxCStrData& m_value;
 };
 

+// wxString/wxCStrData conversion to wchar_t* value
+#if wxUSE_UNICODE_UTF8 && !wxUSE_UTF8_LOCALE_ONLY

 template<>
 template<>

-struct wxArgNormalizer<wxCStrData> : public wxArgNormalizer<const wxCStrData&>
+struct WXDLLIMPEXP_BASE wxArgNormalizerWchar<const wxString&>
+    : public wxArgNormalizerWithBuffer<wchar_t>

 {
 {

-    wxArgNormalizer(const wxCStrData& value)
-        : wxArgNormalizer<const wxCStrData&>(value) {}
+    wxArgNormalizerWchar(const wxString& s,
+                         const wxFormatString *fmt, unsigned index);

 };
 
 template<>
 };
 
 template<>

-struct WXDLLIMPEXP_BASE wxArgNormalizer<const wxString&>
+struct WXDLLIMPEXP_BASE wxArgNormalizerWchar<const wxCStrData&>
+    : public wxArgNormalizerWithBuffer<wchar_t>

 {
 {

-    wxArgNormalizer(const wxString& value) : m_value(value) {}
-    const wxChar *get() const; // FIXME-UTF8: should be wxStringCharType
+    wxArgNormalizerWchar(const wxCStrData& s,
+                         const wxFormatString *fmt, unsigned index);
+};
+#endif // wxUSE_UNICODE_UTF8 && !wxUSE_UTF8_LOCALE_ONLY

 
 

-    const wxString& m_value;
+
+// C string pointers of the wrong type (wchar_t* for ANSI or UTF8 build,
+// char* for wchar_t Unicode build or UTF8):
+#if wxUSE_UNICODE_WCHAR
+
+template<>
+struct wxArgNormalizerWchar<const char*>
+    : public wxArgNormalizerWithBuffer<wchar_t>
+{
+    wxArgNormalizerWchar(const char* s,
+                         const wxFormatString *fmt, unsigned index)
+        : wxArgNormalizerWithBuffer<wchar_t>(wxConvLibc.cMB2WC(s), fmt, index) {}

 };
 
 };
 

+#elif wxUSE_UNICODE_UTF8
+

 template<>
 template<>

-struct wxArgNormalizer<wxString> : public wxArgNormalizer<const wxString&>
+struct wxArgNormalizerUtf8<const wchar_t*>
+    : public wxArgNormalizerWithBuffer<char>

 {
 {

-    wxArgNormalizer(const wxString& value)
-        : wxArgNormalizer<const wxString&>(value) {}
+    wxArgNormalizerUtf8(const wchar_t* s,
+                        const wxFormatString *fmt, unsigned index)
+        : wxArgNormalizerWithBuffer<char>(wxConvUTF8.cWC2MB(s), fmt, index) {}

 };
 
 };
 

-#if wxUSE_UNICODE // FIXME-UTF8: should be wxUSE_UNICODE_WCHAR

 template<>
 template<>

-struct WXDLLIMPEXP_BASE wxArgNormalizer<const char*>
+struct wxArgNormalizerUtf8<const char*>
+    : public wxArgNormalizerWithBuffer<char>

 {
 {

-    wxArgNormalizer(const char *value);
-    ~wxArgNormalizer();
-    const wchar_t *get() const;
+    wxArgNormalizerUtf8(const char* s,
+                        const wxFormatString *fmt,
+                        unsigned index)
+    {
+        wxASSERT_ARG_TYPE( fmt, index, wxFormatString::Arg_String );
+
+        if ( wxLocaleIsUtf8 )
+        {
+            m_value = wxScopedCharBuffer::CreateNonOwned(s);
+        }
+        else
+        {
+            // convert to widechar string first:
+            wxScopedWCharBuffer buf(wxConvLibc.cMB2WC(s));

 
 

-    wxWCharBuffer *m_value;
+            // then to UTF-8:
+            if ( buf )
+                m_value = wxConvUTF8.cWC2MB(buf);
+        }
+    }

 };
 
 };
 

+// UTF-8 build needs conversion to wchar_t* too:
+#if !wxUSE_UTF8_LOCALE_ONLY

 template<>
 template<>

-struct wxArgNormalizer<char*> : public wxArgNormalizer<const char*>
+struct wxArgNormalizerWchar<const char*>
+    : public wxArgNormalizerWithBuffer<wchar_t>

 {
 {

-    wxArgNormalizer(char *value)
-        : wxArgNormalizer<const char*>(value) {}
+    wxArgNormalizerWchar(const char* s,
+                         const wxFormatString *fmt, unsigned index)
+        : wxArgNormalizerWithBuffer<wchar_t>(wxConvLibc.cMB2WC(s), fmt, index) {}

 };
 };

-#endif // wxUSE_UNICODE_WCHAR
+#endif // !wxUSE_UTF8_LOCALE_ONLY
+
+#else // ANSI - FIXME-UTF8

 
 

-// FIXME-UTF8
-#if 0 // wxUSE_UNICODE_UTF8
-// for conversion from local charset to UTF-8

 template<>
 template<>

-struct WXDLLIMPEXP_BASE wxArgNormalizer<const char*>
+struct wxArgNormalizerWchar<const wchar_t*>
+    : public wxArgNormalizerWithBuffer<char>

 {
 {

-    wxArgNormalizer(const char *value);
-    ~wxArgNormalizer();
-    const char *get() const;
+    wxArgNormalizerWchar(const wchar_t* s,
+                         const wxFormatString *fmt, unsigned index)
+        : wxArgNormalizerWithBuffer<char>(wxConvLibc.cWC2MB(s), fmt, index) {}
+};
+
+#endif // wxUSE_UNICODE_WCHAR/wxUSE_UNICODE_UTF8/ANSI
+
+
+// this macro is used to implement specialization that are exactly same as
+// some other specialization, i.e. to "forward" the implementation (e.g. for
+// T=wxString and T=const wxString&). Note that the ctor takes BaseT argument,
+// not T!
+#if wxUSE_UNICODE_UTF8
+    #if wxUSE_UTF8_LOCALE_ONLY
+        #define WX_ARG_NORMALIZER_FORWARD(T, BaseT)                         \
+          _WX_ARG_NORMALIZER_FORWARD_IMPL(wxArgNormalizerUtf8, T, BaseT)
+    #else // possibly non-UTF8 locales
+        #define WX_ARG_NORMALIZER_FORWARD(T, BaseT)                         \
+          _WX_ARG_NORMALIZER_FORWARD_IMPL(wxArgNormalizerWchar, T, BaseT);  \
+          _WX_ARG_NORMALIZER_FORWARD_IMPL(wxArgNormalizerUtf8, T, BaseT)
+    #endif
+#else // wxUSE_UNICODE_WCHAR
+    #define WX_ARG_NORMALIZER_FORWARD(T, BaseT)                             \
+        _WX_ARG_NORMALIZER_FORWARD_IMPL(wxArgNormalizerWchar, T, BaseT)
+#endif // wxUSE_UNICODE_UTF8/wxUSE_UNICODE_WCHAR
+
+#define _WX_ARG_NORMALIZER_FORWARD_IMPL(Normalizer, T, BaseT)               \
+    template<>                                                              \
+    struct Normalizer<T> : public Normalizer<BaseT>                         \
+    {                                                                       \
+        Normalizer(BaseT value,                                             \
+                   const wxFormatString *fmt, unsigned index)               \
+            : Normalizer<BaseT>(value, fmt, index) {}                       \
+    }
+
+// non-reference versions of specializations for string objects
+WX_ARG_NORMALIZER_FORWARD(wxString, const wxString&);
+WX_ARG_NORMALIZER_FORWARD(wxCStrData, const wxCStrData&);
+
+// versions for passing non-const pointers:
+WX_ARG_NORMALIZER_FORWARD(char*, const char*);
+WX_ARG_NORMALIZER_FORWARD(wchar_t*, const wchar_t*);
+
+// versions for passing wx[W]CharBuffer:
+WX_ARG_NORMALIZER_FORWARD(wxScopedCharBuffer, const char*);
+WX_ARG_NORMALIZER_FORWARD(const wxScopedCharBuffer&, const char*);
+WX_ARG_NORMALIZER_FORWARD(wxScopedWCharBuffer, const wchar_t*);
+WX_ARG_NORMALIZER_FORWARD(const wxScopedWCharBuffer&, const wchar_t*);
+WX_ARG_NORMALIZER_FORWARD(wxCharBuffer, const char*);
+WX_ARG_NORMALIZER_FORWARD(const wxCharBuffer&, const char*);
+WX_ARG_NORMALIZER_FORWARD(wxWCharBuffer, const wchar_t*);
+WX_ARG_NORMALIZER_FORWARD(const wxWCharBuffer&, const wchar_t*);

 
 

-    wxCharBuffer *m_value;
+// versions for std::[w]string:
+#if wxUSE_STD_STRING
+
+#include "wx/stringimpl.h"
+
+#if !wxUSE_UTF8_LOCALE_ONLY
+template<>
+struct wxArgNormalizerWchar<const std::string&>
+    : public wxArgNormalizerWchar<const char*>
+{
+    wxArgNormalizerWchar(const std::string& s,
+                         const wxFormatString *fmt, unsigned index)
+        : wxArgNormalizerWchar<const char*>(s.c_str(), fmt, index) {}
+};
+
+template<>
+struct wxArgNormalizerWchar<const wxStdWideString&>
+    : public wxArgNormalizerWchar<const wchar_t*>
+{
+    wxArgNormalizerWchar(const wxStdWideString& s,
+                         const wxFormatString *fmt, unsigned index)
+        : wxArgNormalizerWchar<const wchar_t*>(s.c_str(), fmt, index) {}

 };
 };

+#endif // !wxUSE_UTF8_LOCALE_ONLY

 
 

+#if wxUSE_UNICODE_UTF8

 template<>
 template<>

-struct wxArgNormalizer<char*> : public wxArgNormalizer<const char*>
+struct wxArgNormalizerUtf8<const std::string&>
+    : public wxArgNormalizerUtf8<const char*>

 {
 {

-    wxArgNormalizer(char *value)
-        : wxArgNormalizer<const char*>(value) {}
+    wxArgNormalizerUtf8(const std::string& s,
+                        const wxFormatString *fmt, unsigned index)
+        : wxArgNormalizerUtf8<const char*>(s.c_str(), fmt, index) {}
+};
+
+template<>
+struct wxArgNormalizerUtf8<const wxStdWideString&>
+    : public wxArgNormalizerUtf8<const wchar_t*>
+{
+    wxArgNormalizerUtf8(const wxStdWideString& s,
+                        const wxFormatString *fmt, unsigned index)
+        : wxArgNormalizerUtf8<const wchar_t*>(s.c_str(), fmt, index) {}

 };
 #endif // wxUSE_UNICODE_UTF8
 
 };
 #endif // wxUSE_UNICODE_UTF8
 

-#if /*wxUSE_UNICODE_UTF8 || */ !wxUSE_UNICODE // FIXME-UTF8
+WX_ARG_NORMALIZER_FORWARD(std::string, const std::string&);
+WX_ARG_NORMALIZER_FORWARD(wxStdWideString, const wxStdWideString&);
+
+#endif // wxUSE_STD_STRING
+
+
+// versions for wxUniChar, wxUniCharRef:
+// (this is same for UTF-8 and Wchar builds, we just convert to wchar_t)

 template<>
 template<>

-struct WXDLLIMPEXP_BASE wxArgNormalizer<const wchar_t*>
+struct wxArgNormalizer<const wxUniChar&> : public wxArgNormalizer<wchar_t>

 {
 {

-    wxArgNormalizer(const wchar_t *value);
-    ~wxArgNormalizer();
-    const char *get() const;
+    wxArgNormalizer(const wxUniChar& s,
+                    const wxFormatString *fmt, unsigned index)
+        : wxArgNormalizer<wchar_t>(s.GetValue(), fmt, index) {}
+};
+
+// for wchar_t, default handler does the right thing
+
+// char has to be treated differently in Unicode builds: a char argument may
+// be used either for a character value (which should be converted into
+// wxUniChar) or as an integer value (which should be left as-is). We take
+// advantage of the fact that both char and wchar_t are converted into int
+// in variadic arguments here.
+#if wxUSE_UNICODE
+template<typename T>
+struct wxArgNormalizerNarrowChar
+{
+    wxArgNormalizerNarrowChar(T value,
+                              const wxFormatString *fmt, unsigned index)
+    {
+        wxASSERT_ARG_TYPE( fmt, index,
+                           wxFormatString::Arg_Char | wxFormatString::Arg_Int );
+
+        // FIXME-UTF8: which one is better default in absence of fmt string
+        //             (i.e. when used like e.g. Foo("foo", "bar", 'c', NULL)?
+        if ( !fmt || fmt->GetArgumentType(index) == wxFormatString::Arg_Char )
+            m_value = wx_truncate_cast(T, wxUniChar(value).GetValue());
+        else
+            m_value = value;
+    }

 
 

-    wxCharBuffer *m_value;
+    int get() const { return m_value; }
+
+    T m_value;

 };
 
 template<>
 };
 
 template<>

-struct wxArgNormalizer<wchar_t*> : public wxArgNormalizer<const wchar_t*>
+struct wxArgNormalizer<char> : public wxArgNormalizerNarrowChar<char>

 {
 {

-    wxArgNormalizer(wchar_t *value)
-        : wxArgNormalizer<const wchar_t*>(value) {}
+    wxArgNormalizer(char value,
+                    const wxFormatString *fmt, unsigned index)
+        : wxArgNormalizerNarrowChar<char>(value, fmt, index) {}

 };
 };

-#endif // wxUSE_UNICODE_UTF8 || !wxUSE_UNICODE

 
 

-// versions for passing wx[W]CharBuffer:

 template<>
 template<>

-struct WXDLLIMPEXP_BASE wxArgNormalizer<wxCharBuffer>
-            : public wxArgNormalizer<const char*>
+struct wxArgNormalizer<unsigned char>
+    : public wxArgNormalizerNarrowChar<unsigned char>

 {
 {

-    wxArgNormalizer(const wxCharBuffer& buf);
+    wxArgNormalizer(unsigned char value,
+                    const wxFormatString *fmt, unsigned index)
+        : wxArgNormalizerNarrowChar<unsigned char>(value, fmt, index) {}

 };
 
 template<>
 };
 
 template<>

-struct WXDLLIMPEXP_BASE wxArgNormalizer<wxWCharBuffer>
-            : public wxArgNormalizer<const wchar_t*>
+struct wxArgNormalizer<signed char>
+    : public wxArgNormalizerNarrowChar<signed char>
+{
+    wxArgNormalizer(signed char value,
+                    const wxFormatString *fmt, unsigned index)
+        : wxArgNormalizerNarrowChar<signed char>(value, fmt, index) {}
+};
+
+#endif // wxUSE_UNICODE
+
+// convert references:
+WX_ARG_NORMALIZER_FORWARD(wxUniChar, const wxUniChar&);
+WX_ARG_NORMALIZER_FORWARD(const wxUniCharRef&, const wxUniChar&);
+WX_ARG_NORMALIZER_FORWARD(wxUniCharRef, const wxUniChar&);
+WX_ARG_NORMALIZER_FORWARD(const wchar_t&, wchar_t);
+
+WX_ARG_NORMALIZER_FORWARD(const char&, char);
+WX_ARG_NORMALIZER_FORWARD(const unsigned char&, unsigned char);
+WX_ARG_NORMALIZER_FORWARD(const signed char&, signed char);
+
+
+#undef WX_ARG_NORMALIZER_FORWARD
+#undef _WX_ARG_NORMALIZER_FORWARD_IMPL
+
+// NB: Don't #undef wxASSERT_ARG_TYPE here as it's also used in wx/longlong.h.
+
+// ----------------------------------------------------------------------------
+// WX_VA_ARG_STRING
+// ----------------------------------------------------------------------------
+
+// Replacement for va_arg() for use with strings in functions that accept
+// strings normalized by wxArgNormalizer<T>:
+
+struct WXDLLIMPEXP_BASE wxArgNormalizedString

 {
 {

-    wxArgNormalizer(const wxWCharBuffer& buf);
+    wxArgNormalizedString(const void* ptr) : m_ptr(ptr) {}
+
+    // returns true if non-NULL string was passed in
+    bool IsValid() const { return m_ptr != NULL; }
+    operator bool() const { return IsValid(); }
+
+    // extracts the string, returns empty string if NULL was passed in
+    wxString GetString() const;
+    operator wxString() const;
+
+private:
+    const void *m_ptr;

 };
 
 };
 

+#define WX_VA_ARG_STRING(ap) wxArgNormalizedString(va_arg(ap, const void*))

 
 

+// ----------------------------------------------------------------------------
+// implementation of the WX_DEFINE_VARARG_* macros
+// ----------------------------------------------------------------------------

 
 

-// NB: The vararg emulation code is limited to 30 arguments at the moment.
-//     If you need more, you need to
+// NB: The vararg emulation code is limited to 30 variadic and 4 fixed
+//     arguments at the moment.
+//     If you need more variadic arguments, you need to

 //        1) increase the value of _WX_VARARG_MAX_ARGS
 //        2) add _WX_VARARG_JOIN_* and _WX_VARARG_ITER_* up to the new
 //           _WX_VARARG_MAX_ARGS value to the lists below
 //        1) increase the value of _WX_VARARG_MAX_ARGS
 //        2) add _WX_VARARG_JOIN_* and _WX_VARARG_ITER_* up to the new
 //           _WX_VARARG_MAX_ARGS value to the lists below

+//     If you need more fixed arguments, you need to
+//        1) increase the value of _WX_VARARG_MAX_FIXED_ARGS
+//        2) add _WX_VARARG_FIXED_EXPAND_* and _WX_VARARG_FIXED_UNUSED_EXPAND_*
+//           macros below

 #define _WX_VARARG_MAX_ARGS        30
 #define _WX_VARARG_MAX_ARGS        30

+#define _WX_VARARG_MAX_FIXED_ARGS   4

 
 #define _WX_VARARG_JOIN_1(m)                                 m(1)
 #define _WX_VARARG_JOIN_2(m)       _WX_VARARG_JOIN_1(m),     m(2)
 
 #define _WX_VARARG_JOIN_1(m)                                 m(1)
 #define _WX_VARARG_JOIN_2(m)       _WX_VARARG_JOIN_1(m),     m(2)


@@ -235,36 +899,87 @@ struct WXDLLIMPEXP_BASE wxArgNormalizer<wxWCharBuffer>
 #define _WX_VARARG_JOIN_29(m)      _WX_VARARG_JOIN_28(m),    m(29)
 #define _WX_VARARG_JOIN_30(m)      _WX_VARARG_JOIN_29(m),    m(30)
 
 #define _WX_VARARG_JOIN_29(m)      _WX_VARARG_JOIN_28(m),    m(29)
 #define _WX_VARARG_JOIN_30(m)      _WX_VARARG_JOIN_29(m),    m(30)
 

-#define _WX_VARARG_ITER_1(m,a,b,c)                               m(1,a,b,c)
-#define _WX_VARARG_ITER_2(m,a,b,c)   _WX_VARARG_ITER_1(m,a,b,c)  m(2,a,b,c)
-#define _WX_VARARG_ITER_3(m,a,b,c)   _WX_VARARG_ITER_2(m,a,b,c)  m(3,a,b,c)
-#define _WX_VARARG_ITER_4(m,a,b,c)   _WX_VARARG_ITER_3(m,a,b,c)  m(4,a,b,c)
-#define _WX_VARARG_ITER_5(m,a,b,c)   _WX_VARARG_ITER_4(m,a,b,c)  m(5,a,b,c)
-#define _WX_VARARG_ITER_6(m,a,b,c)   _WX_VARARG_ITER_5(m,a,b,c)  m(6,a,b,c)
-#define _WX_VARARG_ITER_7(m,a,b,c)   _WX_VARARG_ITER_6(m,a,b,c)  m(7,a,b,c)
-#define _WX_VARARG_ITER_8(m,a,b,c)   _WX_VARARG_ITER_7(m,a,b,c)  m(8,a,b,c)
-#define _WX_VARARG_ITER_9(m,a,b,c)   _WX_VARARG_ITER_8(m,a,b,c)  m(9,a,b,c)
-#define _WX_VARARG_ITER_10(m,a,b,c)  _WX_VARARG_ITER_9(m,a,b,c)  m(10,a,b,c)
-#define _WX_VARARG_ITER_11(m,a,b,c)  _WX_VARARG_ITER_10(m,a,b,c) m(11,a,b,c)
-#define _WX_VARARG_ITER_12(m,a,b,c)  _WX_VARARG_ITER_11(m,a,b,c) m(12,a,b,c)
-#define _WX_VARARG_ITER_13(m,a,b,c)  _WX_VARARG_ITER_12(m,a,b,c) m(13,a,b,c)
-#define _WX_VARARG_ITER_14(m,a,b,c)  _WX_VARARG_ITER_13(m,a,b,c) m(14,a,b,c)
-#define _WX_VARARG_ITER_15(m,a,b,c)  _WX_VARARG_ITER_14(m,a,b,c) m(15,a,b,c)
-#define _WX_VARARG_ITER_16(m,a,b,c)  _WX_VARARG_ITER_15(m,a,b,c) m(16,a,b,c)
-#define _WX_VARARG_ITER_17(m,a,b,c)  _WX_VARARG_ITER_16(m,a,b,c) m(17,a,b,c)
-#define _WX_VARARG_ITER_18(m,a,b,c)  _WX_VARARG_ITER_17(m,a,b,c) m(18,a,b,c)
-#define _WX_VARARG_ITER_19(m,a,b,c)  _WX_VARARG_ITER_18(m,a,b,c) m(19,a,b,c)
-#define _WX_VARARG_ITER_20(m,a,b,c)  _WX_VARARG_ITER_19(m,a,b,c) m(20,a,b,c)
-#define _WX_VARARG_ITER_21(m,a,b,c)  _WX_VARARG_ITER_20(m,a,b,c) m(21,a,b,c)
-#define _WX_VARARG_ITER_22(m,a,b,c)  _WX_VARARG_ITER_21(m,a,b,c) m(22,a,b,c)
-#define _WX_VARARG_ITER_23(m,a,b,c)  _WX_VARARG_ITER_22(m,a,b,c) m(23,a,b,c)
-#define _WX_VARARG_ITER_24(m,a,b,c)  _WX_VARARG_ITER_23(m,a,b,c) m(24,a,b,c)
-#define _WX_VARARG_ITER_25(m,a,b,c)  _WX_VARARG_ITER_24(m,a,b,c) m(25,a,b,c)
-#define _WX_VARARG_ITER_26(m,a,b,c)  _WX_VARARG_ITER_25(m,a,b,c) m(26,a,b,c)
-#define _WX_VARARG_ITER_27(m,a,b,c)  _WX_VARARG_ITER_26(m,a,b,c) m(27,a,b,c)
-#define _WX_VARARG_ITER_28(m,a,b,c)  _WX_VARARG_ITER_27(m,a,b,c) m(28,a,b,c)
-#define _WX_VARARG_ITER_29(m,a,b,c)  _WX_VARARG_ITER_28(m,a,b,c) m(29,a,b,c)
-#define _WX_VARARG_ITER_30(m,a,b,c)  _WX_VARARG_ITER_29(m,a,b,c) m(30,a,b,c)
+#define _WX_VARARG_ITER_1(m,a,b,c,d,e,f)                                    m(1,a,b,c,d,e,f)
+#define _WX_VARARG_ITER_2(m,a,b,c,d,e,f)  _WX_VARARG_ITER_1(m,a,b,c,d,e,f)  m(2,a,b,c,d,e,f)
+#define _WX_VARARG_ITER_3(m,a,b,c,d,e,f)  _WX_VARARG_ITER_2(m,a,b,c,d,e,f)  m(3,a,b,c,d,e,f)
+#define _WX_VARARG_ITER_4(m,a,b,c,d,e,f)  _WX_VARARG_ITER_3(m,a,b,c,d,e,f)  m(4,a,b,c,d,e,f)
+#define _WX_VARARG_ITER_5(m,a,b,c,d,e,f)  _WX_VARARG_ITER_4(m,a,b,c,d,e,f)  m(5,a,b,c,d,e,f)
+#define _WX_VARARG_ITER_6(m,a,b,c,d,e,f)  _WX_VARARG_ITER_5(m,a,b,c,d,e,f)  m(6,a,b,c,d,e,f)
+#define _WX_VARARG_ITER_7(m,a,b,c,d,e,f)  _WX_VARARG_ITER_6(m,a,b,c,d,e,f)  m(7,a,b,c,d,e,f)
+#define _WX_VARARG_ITER_8(m,a,b,c,d,e,f)  _WX_VARARG_ITER_7(m,a,b,c,d,e,f)  m(8,a,b,c,d,e,f)
+#define _WX_VARARG_ITER_9(m,a,b,c,d,e,f)  _WX_VARARG_ITER_8(m,a,b,c,d,e,f)  m(9,a,b,c,d,e,f)
+#define _WX_VARARG_ITER_10(m,a,b,c,d,e,f) _WX_VARARG_ITER_9(m,a,b,c,d,e,f)  m(10,a,b,c,d,e,f)
+#define _WX_VARARG_ITER_11(m,a,b,c,d,e,f) _WX_VARARG_ITER_10(m,a,b,c,d,e,f) m(11,a,b,c,d,e,f)
+#define _WX_VARARG_ITER_12(m,a,b,c,d,e,f) _WX_VARARG_ITER_11(m,a,b,c,d,e,f) m(12,a,b,c,d,e,f)
+#define _WX_VARARG_ITER_13(m,a,b,c,d,e,f) _WX_VARARG_ITER_12(m,a,b,c,d,e,f) m(13,a,b,c,d,e,f)
+#define _WX_VARARG_ITER_14(m,a,b,c,d,e,f) _WX_VARARG_ITER_13(m,a,b,c,d,e,f) m(14,a,b,c,d,e,f)
+#define _WX_VARARG_ITER_15(m,a,b,c,d,e,f) _WX_VARARG_ITER_14(m,a,b,c,d,e,f) m(15,a,b,c,d,e,f)
+#define _WX_VARARG_ITER_16(m,a,b,c,d,e,f) _WX_VARARG_ITER_15(m,a,b,c,d,e,f) m(16,a,b,c,d,e,f)
+#define _WX_VARARG_ITER_17(m,a,b,c,d,e,f) _WX_VARARG_ITER_16(m,a,b,c,d,e,f) m(17,a,b,c,d,e,f)
+#define _WX_VARARG_ITER_18(m,a,b,c,d,e,f) _WX_VARARG_ITER_17(m,a,b,c,d,e,f) m(18,a,b,c,d,e,f)
+#define _WX_VARARG_ITER_19(m,a,b,c,d,e,f) _WX_VARARG_ITER_18(m,a,b,c,d,e,f) m(19,a,b,c,d,e,f)
+#define _WX_VARARG_ITER_20(m,a,b,c,d,e,f) _WX_VARARG_ITER_19(m,a,b,c,d,e,f) m(20,a,b,c,d,e,f)
+#define _WX_VARARG_ITER_21(m,a,b,c,d,e,f) _WX_VARARG_ITER_20(m,a,b,c,d,e,f) m(21,a,b,c,d,e,f)
+#define _WX_VARARG_ITER_22(m,a,b,c,d,e,f) _WX_VARARG_ITER_21(m,a,b,c,d,e,f) m(22,a,b,c,d,e,f)
+#define _WX_VARARG_ITER_23(m,a,b,c,d,e,f) _WX_VARARG_ITER_22(m,a,b,c,d,e,f) m(23,a,b,c,d,e,f)
+#define _WX_VARARG_ITER_24(m,a,b,c,d,e,f) _WX_VARARG_ITER_23(m,a,b,c,d,e,f) m(24,a,b,c,d,e,f)
+#define _WX_VARARG_ITER_25(m,a,b,c,d,e,f) _WX_VARARG_ITER_24(m,a,b,c,d,e,f) m(25,a,b,c,d,e,f)
+#define _WX_VARARG_ITER_26(m,a,b,c,d,e,f) _WX_VARARG_ITER_25(m,a,b,c,d,e,f) m(26,a,b,c,d,e,f)
+#define _WX_VARARG_ITER_27(m,a,b,c,d,e,f) _WX_VARARG_ITER_26(m,a,b,c,d,e,f) m(27,a,b,c,d,e,f)
+#define _WX_VARARG_ITER_28(m,a,b,c,d,e,f) _WX_VARARG_ITER_27(m,a,b,c,d,e,f) m(28,a,b,c,d,e,f)
+#define _WX_VARARG_ITER_29(m,a,b,c,d,e,f) _WX_VARARG_ITER_28(m,a,b,c,d,e,f) m(29,a,b,c,d,e,f)
+#define _WX_VARARG_ITER_30(m,a,b,c,d,e,f) _WX_VARARG_ITER_29(m,a,b,c,d,e,f) m(30,a,b,c,d,e,f)
+
+
+#define _WX_VARARG_FIXED_EXPAND_1(t1) \
+         t1 f1
+#define _WX_VARARG_FIXED_EXPAND_2(t1,t2) \
+         t1 f1, t2 f2
+#define _WX_VARARG_FIXED_EXPAND_3(t1,t2,t3) \
+         t1 f1, t2 f2, t3 f3
+#define _WX_VARARG_FIXED_EXPAND_4(t1,t2,t3,t4) \
+         t1 f1, t2 f2, t3 f3, t4 f4
+
+#define _WX_VARARG_FIXED_UNUSED_EXPAND_1(t1) \
+         t1 WXUNUSED(f1)
+#define _WX_VARARG_FIXED_UNUSED_EXPAND_2(t1,t2) \
+         t1 WXUNUSED(f1), t2 WXUNUSED(f2)
+#define _WX_VARARG_FIXED_UNUSED_EXPAND_3(t1,t2,t3) \
+         t1 WXUNUSED(f1), t2 WXUNUSED(f2), t3 WXUNUSED(f3)
+#define _WX_VARARG_FIXED_UNUSED_EXPAND_4(t1,t2,t3,t4) \
+         t1 WXUNUSED(f1), t2 WXUNUSED(f2), t3 WXUNUSED(f3), t4 WXUNUSED(f4)
+
+#define _WX_VARARG_FIXED_TYPEDEFS_1(t1) \
+             typedef t1 TF1
+#define _WX_VARARG_FIXED_TYPEDEFS_2(t1,t2) \
+             _WX_VARARG_FIXED_TYPEDEFS_1(t1); typedef t2 TF2
+#define _WX_VARARG_FIXED_TYPEDEFS_3(t1,t2,t3) \
+             _WX_VARARG_FIXED_TYPEDEFS_2(t1,t2); typedef t3 TF3
+#define _WX_VARARG_FIXED_TYPEDEFS_4(t1,t2,t3,t4) \
+             _WX_VARARG_FIXED_TYPEDEFS_3(t1,t2,t3); typedef t4 TF4
+
+// This macro expands N-items tuple of fixed arguments types into part of
+// function's declaration. For example,
+// "_WX_VARARG_FIXED_EXPAND(3, (int, char*, int))" expands into
+// "int f1, char* f2, int f3".
+#define _WX_VARARG_FIXED_EXPAND(N, args) \
+                _WX_VARARG_FIXED_EXPAND_IMPL(N, args)
+#define _WX_VARARG_FIXED_EXPAND_IMPL(N, args) \
+                _WX_VARARG_FIXED_EXPAND_##N args
+
+// Ditto for unused arguments
+#define _WX_VARARG_FIXED_UNUSED_EXPAND(N, args) \
+                _WX_VARARG_FIXED_UNUSED_EXPAND_IMPL(N, args)
+#define _WX_VARARG_FIXED_UNUSED_EXPAND_IMPL(N, args) \
+                _WX_VARARG_FIXED_UNUSED_EXPAND_##N args
+
+// Declarates typedefs for fixed arguments types; i-th fixed argument types
+// will have TFi typedef.
+#define _WX_VARARG_FIXED_TYPEDEFS(N, args) \
+                _WX_VARARG_FIXED_TYPEDEFS_IMPL(N, args)
+#define _WX_VARARG_FIXED_TYPEDEFS_IMPL(N, args) \
+                _WX_VARARG_FIXED_TYPEDEFS_##N args
+

 
 // This macro calls another macro 'm' passed as second argument 'N' times,
 // with its only argument set to 1..N, and concatenates the results using
 
 // This macro calls another macro 'm' passed as second argument 'N' times,
 // with its only argument set to 1..N, and concatenates the results using


@@ -280,61 +995,229 @@ struct WXDLLIMPEXP_BASE wxArgNormalizer<wxWCharBuffer>
 #define _WX_VARARG_JOIN(N, m)             _WX_VARARG_JOIN_IMPL(N, m)
 #define _WX_VARARG_JOIN_IMPL(N, m)        _WX_VARARG_JOIN_##N(m)
 
 #define _WX_VARARG_JOIN(N, m)             _WX_VARARG_JOIN_IMPL(N, m)
 #define _WX_VARARG_JOIN_IMPL(N, m)        _WX_VARARG_JOIN_##N(m)
 

+

 // This macro calls another macro 'm' passed as second argument 'N' times, with
 // This macro calls another macro 'm' passed as second argument 'N' times, with

-// its first argument set to 1..N and the remaining arguments set to 'a', 'b'
-// and 'c'. The results are separated with whitespace in the expansion.
+// its first argument set to 1..N and the remaining arguments set to 'a', 'b',
+// 'c', 'd', 'e' and 'f'. The results are separated with whitespace in the
+// expansion.

 //
 // An example:
 //     // this macro expands to:
 //
 // An example:
 //     // this macro expands to:

-//     //     foo(1,a,b,c)
-//     //     foo(2,a,b,c)
-//     //     foo(3,a,b,c)
-//     _WX_VARARG_ITER(3, foo, a, b, c)
+//     //     foo(1,a,b,c,d,e,f)
+//     //     foo(2,a,b,c,d,e,f)
+//     //     foo(3,a,b,c,d,e,f)
+//     _WX_VARARG_ITER(3, foo, a, b, c, d, e, f)

 //
 // N must not be greater than _WX_VARARG_MAX_ARGS (=30).
 //
 // N must not be greater than _WX_VARARG_MAX_ARGS (=30).

-#define _WX_VARARG_ITER(N, m,a,b,c)       _WX_VARARG_ITER_IMPL(N, m, a, b, c)
-#define _WX_VARARG_ITER_IMPL(N, m,a,b,c)  _WX_VARARG_ITER_##N(m, a, b, c)
+#define _WX_VARARG_ITER(N,m,a,b,c,d,e,f) \
+        _WX_VARARG_ITER_IMPL(N,m,a,b,c,d,e,f)
+#define _WX_VARARG_ITER_IMPL(N,m,a,b,c,d,e,f) \
+        _WX_VARARG_ITER_##N(m,a,b,c,d,e,f)

 
 

-// Generates code snippet for i-th argument in vararg function's prototype.
-#define _WX_VARARG_ARG(i)          T##i a##i
+// Generates code snippet for i-th "variadic" argument in vararg function's
+// prototype:
+#define _WX_VARARG_ARG(i)               T##i a##i

 
 

-// Like _WX_VARARG_ARG_UNUSED, but outputs argument's type with WXUNUSED.
-#define _WX_VARARG_ARG_UNUSED(i)   T##i WXUNUSED(a##i)
+// Like _WX_VARARG_ARG_UNUSED, but outputs argument's type with WXUNUSED:
+#define _WX_VARARG_ARG_UNUSED(i)        T##i WXUNUSED(a##i)

 
 

-// Generates code snippet for i-th type in vararg function's template<...>.
-#define _WX_VARARG_TEMPL(i)        typename T##i
+// Generates code snippet for i-th type in vararg function's template<...>:
+#define _WX_VARARG_TEMPL(i)             typename T##i

 
 // Generates code snippet for passing i-th argument of vararg function
 
 // Generates code snippet for passing i-th argument of vararg function

-// wrapper to its implementation, normalizing it in the process
-#define _WX_VARARG_PASS(i)         wxArgNormalizer<T##i>(a##i).get()
+// wrapper to its implementation, normalizing it in the process:
+#define _WX_VARARG_PASS_WCHAR(i) \
+    wxArgNormalizerWchar<T##i>(a##i, fmt, i).get()
+#define _WX_VARARG_PASS_UTF8(i) \
+    wxArgNormalizerUtf8<T##i>(a##i, fmt, i).get()
+
+
+// And the same for fixed arguments, _not_ normalizing it:
+#define _WX_VARARG_PASS_FIXED(i)        f##i
+
+#define _WX_VARARG_FIND_FMT(i) \
+            (wxFormatStringArgumentFinder<TF##i>::find(f##i))
+
+#define _WX_VARARG_FORMAT_STRING(numfixed, fixed)                             \
+    _WX_VARARG_FIXED_TYPEDEFS(numfixed, fixed);                               \
+    const wxFormatString *fmt =                                               \
+            (_WX_VARARG_JOIN(numfixed, _WX_VARARG_FIND_FMT))
+
+#if wxUSE_UNICODE_UTF8
+    #define _WX_VARARG_DO_CALL_UTF8(return_kw, impl, implUtf8, N, numfixed)   \
+        return_kw implUtf8(_WX_VARARG_JOIN(numfixed, _WX_VARARG_PASS_FIXED),  \
+                        _WX_VARARG_JOIN(N, _WX_VARARG_PASS_UTF8))
+    #define _WX_VARARG_DO_CALL0_UTF8(return_kw, impl, implUtf8, numfixed)     \
+        return_kw implUtf8(_WX_VARARG_JOIN(numfixed, _WX_VARARG_PASS_FIXED))
+#endif // wxUSE_UNICODE_UTF8
+
+#define _WX_VARARG_DO_CALL_WCHAR(return_kw, impl, implUtf8, N, numfixed)      \
+    return_kw impl(_WX_VARARG_JOIN(numfixed, _WX_VARARG_PASS_FIXED),          \
+                    _WX_VARARG_JOIN(N, _WX_VARARG_PASS_WCHAR))
+#define _WX_VARARG_DO_CALL0_WCHAR(return_kw, impl, implUtf8, numfixed)        \
+    return_kw impl(_WX_VARARG_JOIN(numfixed, _WX_VARARG_PASS_FIXED))
+
+#if wxUSE_UNICODE_UTF8
+    #if wxUSE_UTF8_LOCALE_ONLY
+        #define _WX_VARARG_DO_CALL _WX_VARARG_DO_CALL_UTF8
+        #define _WX_VARARG_DO_CALL0 _WX_VARARG_DO_CALL0_UTF8
+    #else // possibly non-UTF8 locales
+        #define _WX_VARARG_DO_CALL(return_kw, impl, implUtf8, N, numfixed)    \
+            if ( wxLocaleIsUtf8 )                                             \
+              _WX_VARARG_DO_CALL_UTF8(return_kw, impl, implUtf8, N, numfixed);\
+            else                                                              \
+              _WX_VARARG_DO_CALL_WCHAR(return_kw, impl, implUtf8, N, numfixed)
+
+        #define _WX_VARARG_DO_CALL0(return_kw, impl, implUtf8, numfixed)      \
+            if ( wxLocaleIsUtf8 )                                             \
+              _WX_VARARG_DO_CALL0_UTF8(return_kw, impl, implUtf8, numfixed);  \
+            else                                                              \
+              _WX_VARARG_DO_CALL0_WCHAR(return_kw, impl, implUtf8, numfixed)
+    #endif // wxUSE_UTF8_LOCALE_ONLY or not
+#else // wxUSE_UNICODE_WCHAR or ANSI
+    #define _WX_VARARG_DO_CALL _WX_VARARG_DO_CALL_WCHAR
+    #define _WX_VARARG_DO_CALL0 _WX_VARARG_DO_CALL0_WCHAR
+#endif // wxUSE_UNICODE_UTF8 / wxUSE_UNICODE_WCHAR

 
 
 // Macro to be used with _WX_VARARG_ITER in the implementation of
 // WX_DEFINE_VARARG_FUNC (see its documentation for the meaning of arguments)
 
 
 // Macro to be used with _WX_VARARG_ITER in the implementation of
 // WX_DEFINE_VARARG_FUNC (see its documentation for the meaning of arguments)

-#define _WX_VARARG_DEFINE_FUNC(N, rettype, name, impl)                      \
-    template<_WX_VARARG_JOIN(N, _WX_VARARG_TEMPL)>                          \
-    rettype name(_WX_VARARG_JOIN(N, _WX_VARARG_ARG))                        \
-    {                                                                       \
-        return impl(_WX_VARARG_JOIN(N, _WX_VARARG_PASS));                   \
+#define _WX_VARARG_DEFINE_FUNC(N, rettype, name,                              \
+                               impl, implUtf8, numfixed, fixed)               \
+    template<_WX_VARARG_JOIN(N, _WX_VARARG_TEMPL)>                            \
+    rettype name(_WX_VARARG_FIXED_EXPAND(numfixed, fixed),                    \
+                 _WX_VARARG_JOIN(N, _WX_VARARG_ARG))                          \
+    {                                                                         \
+        _WX_VARARG_FORMAT_STRING(numfixed, fixed);                            \
+        _WX_VARARG_DO_CALL(return, impl, implUtf8, N, numfixed);              \
+    }
+
+#define _WX_VARARG_DEFINE_FUNC_N0(rettype, name,                              \
+                                  impl, implUtf8, numfixed, fixed)            \
+    inline rettype name(_WX_VARARG_FIXED_EXPAND(numfixed, fixed))             \
+    {                                                                         \
+        _WX_VARARG_DO_CALL0(return, impl, implUtf8, numfixed);                \

     }
 
 // Macro to be used with _WX_VARARG_ITER in the implementation of
 // WX_DEFINE_VARARG_FUNC_VOID (see its documentation for the meaning of
 // arguments; rettype is ignored and is used only to satisfy _WX_VARARG_ITER's
 // requirements).
     }
 
 // Macro to be used with _WX_VARARG_ITER in the implementation of
 // WX_DEFINE_VARARG_FUNC_VOID (see its documentation for the meaning of
 // arguments; rettype is ignored and is used only to satisfy _WX_VARARG_ITER's
 // requirements).

-#define _WX_VARARG_DEFINE_FUNC_VOID(N, rettype, name, impl)                 \
-    template<_WX_VARARG_JOIN(N, _WX_VARARG_TEMPL)>                          \
-    void name(_WX_VARARG_JOIN(N, _WX_VARARG_ARG))                           \
-    {                                                                       \
-        impl(_WX_VARARG_JOIN(N, _WX_VARARG_PASS));                          \
+#define _WX_VARARG_DEFINE_FUNC_VOID(N, rettype, name,                         \
+                                    impl, implUtf8, numfixed, fixed)          \
+    template<_WX_VARARG_JOIN(N, _WX_VARARG_TEMPL)>                            \
+    void name(_WX_VARARG_FIXED_EXPAND(numfixed, fixed),                       \
+                 _WX_VARARG_JOIN(N, _WX_VARARG_ARG))                          \
+    {                                                                         \
+        _WX_VARARG_FORMAT_STRING(numfixed, fixed);                            \
+        _WX_VARARG_DO_CALL(wxEMPTY_PARAMETER_VALUE,                           \
+                           impl, implUtf8, N, numfixed);                      \
+    }
+
+#define _WX_VARARG_DEFINE_FUNC_VOID_N0(name, impl, implUtf8, numfixed, fixed) \
+    inline void name(_WX_VARARG_FIXED_EXPAND(numfixed, fixed))                \
+    {                                                                         \
+        _WX_VARARG_DO_CALL0(wxEMPTY_PARAMETER_VALUE,                          \
+                            impl, implUtf8, numfixed);                        \
+    }
+
+// Macro to be used with _WX_VARARG_ITER in the implementation of
+// WX_DEFINE_VARARG_FUNC_CTOR (see its documentation for the meaning of
+// arguments; rettype is ignored and is used only to satisfy _WX_VARARG_ITER's
+// requirements).
+#define _WX_VARARG_DEFINE_FUNC_CTOR(N, rettype, name,                         \
+                                    impl, implUtf8, numfixed, fixed)          \
+    template<_WX_VARARG_JOIN(N, _WX_VARARG_TEMPL)>                            \
+    name(_WX_VARARG_FIXED_EXPAND(numfixed, fixed),                            \
+                _WX_VARARG_JOIN(N, _WX_VARARG_ARG))                           \
+    {                                                                         \
+        _WX_VARARG_FORMAT_STRING(numfixed, fixed);                            \
+        _WX_VARARG_DO_CALL(wxEMPTY_PARAMETER_VALUE,                           \
+                           impl, implUtf8, N, numfixed);                      \
+    }
+
+#define _WX_VARARG_DEFINE_FUNC_CTOR_N0(name, impl, implUtf8, numfixed, fixed) \
+    inline name(_WX_VARARG_FIXED_EXPAND(numfixed, fixed))                     \
+    {                                                                         \
+        _WX_VARARG_DO_CALL0(wxEMPTY_PARAMETER_VALUE,                          \
+                            impl, implUtf8, numfixed);                        \

     }
 
 // Macro to be used with _WX_VARARG_ITER in the implementation of
 // WX_DEFINE_VARARG_FUNC_NOP, i.e. empty stub for a disabled vararg function.
 // The rettype and impl arguments are ignored.
     }
 
 // Macro to be used with _WX_VARARG_ITER in the implementation of
 // WX_DEFINE_VARARG_FUNC_NOP, i.e. empty stub for a disabled vararg function.
 // The rettype and impl arguments are ignored.

-#define _WX_VARARG_DEFINE_FUNC_NOP(N, rettype, name, impl)                  \
-    template<_WX_VARARG_JOIN(N, _WX_VARARG_TEMPL)>                          \
-    void name(_WX_VARARG_JOIN(N, _WX_VARARG_ARG_UNUSED)) {}
+#define _WX_VARARG_DEFINE_FUNC_NOP(N, rettype, name,                          \
+                                   impl, implUtf8, numfixed, fixed)           \
+    template<_WX_VARARG_JOIN(N, _WX_VARARG_TEMPL)>                            \
+    void name(_WX_VARARG_FIXED_UNUSED_EXPAND(numfixed, fixed),                \
+                 _WX_VARARG_JOIN(N, _WX_VARARG_ARG_UNUSED))                   \
+    {}
+
+#define _WX_VARARG_DEFINE_FUNC_NOP_N0(name, numfixed, fixed)                  \
+    inline void name(_WX_VARARG_FIXED_UNUSED_EXPAND(numfixed, fixed))         \
+    {}
+
+
+// ----------------------------------------------------------------------------
+// workaround for OpenWatcom bug #351
+// ----------------------------------------------------------------------------
+
+#ifdef __WATCOMC__
+// workaround for http://bugzilla.openwatcom.org/show_bug.cgi?id=351
+
+// This macro can be used to forward a 'vararg' template to another one with
+// different fixed arguments types. Parameters are same as for
+// WX_DEFINE_VARARG_FUNC (rettype=void can be used here), 'convfixed' is how
+// to convert fixed arguments. For example, this is typical code for dealing
+// with different forms of format string:
+//
+// WX_DEFINE_VARARG_FUNC_VOID(Printf, 1, (const wxFormatString&),
+//                            DoPrintfWchar, DoPrintfUtf8)
+// #ifdef __WATCOMC__
+// WX_VARARG_WATCOM_WORKAROUND(void, Printf, 1, (const wxString&),
+//                             (wxFormatString(f1)))
+// WX_VARARG_WATCOM_WORKAROUND(void, Printf, 1, (const char*),
+//                             (wxFormatString(f1)))
+// ...
+#define WX_VARARG_WATCOM_WORKAROUND(rettype, name, numfixed, fixed, convfixed)\
+    _WX_VARARG_ITER(_WX_VARARG_MAX_ARGS,                                      \
+                    _WX_VARARG_WATCOM_WORKAROUND,                             \
+                    rettype, name, convfixed, dummy, numfixed, fixed)
+
+#define WX_VARARG_WATCOM_WORKAROUND_CTOR(name, numfixed, fixed, convfixed)    \
+    _WX_VARARG_ITER(_WX_VARARG_MAX_ARGS,                                      \
+                    _WX_VARARG_WATCOM_WORKAROUND_CTOR,                        \
+                    dummy, name, convfixed, dummy, numfixed, fixed)
+
+#define _WX_VARARG_WATCOM_UNPACK_1(a1)               a1
+#define _WX_VARARG_WATCOM_UNPACK_2(a1, a2)           a1, a2
+#define _WX_VARARG_WATCOM_UNPACK_3(a1, a2, a3)       a1, a2, a3
+#define _WX_VARARG_WATCOM_UNPACK_4(a1, a2, a3, a4)   a1, a2, a3, a4
+#define _WX_VARARG_WATCOM_UNPACK(N, convfixed) \
+        _WX_VARARG_WATCOM_UNPACK_##N convfixed
+
+#define _WX_VARARG_PASS_WATCOM(i) a##i
+
+#define _WX_VARARG_WATCOM_WORKAROUND(N, rettype, name,                        \
+                                     convfixed, dummy, numfixed, fixed)       \
+    template<_WX_VARARG_JOIN(N, _WX_VARARG_TEMPL)>                            \
+    rettype name(_WX_VARARG_FIXED_EXPAND(numfixed, fixed),                    \
+                 _WX_VARARG_JOIN(N, _WX_VARARG_ARG))                          \
+    {                                                                         \
+         return name(_WX_VARARG_WATCOM_UNPACK(numfixed, convfixed),           \
+                     _WX_VARARG_JOIN(N, _WX_VARARG_PASS_WATCOM));             \
+    }
+
+#define _WX_VARARG_WATCOM_WORKAROUND_CTOR(N, dummy1, name,                    \
+                                     convfixed, dummy2, numfixed, fixed)      \
+    template<_WX_VARARG_JOIN(N, _WX_VARARG_TEMPL)>                            \
+    name(_WX_VARARG_FIXED_EXPAND(numfixed, fixed),                            \
+                 _WX_VARARG_JOIN(N, _WX_VARARG_ARG))                          \
+    {                                                                         \
+         name(_WX_VARARG_WATCOM_UNPACK(numfixed, convfixed),                  \
+                     _WX_VARARG_JOIN(N, _WX_VARARG_PASS_WATCOM));             \
+    }

 
 

+#endif // __WATCOMC__

 
 #endif // _WX_STRVARARG_H_
 
 #endif // _WX_STRVARARG_H_