add support for wxStrnlen for those platforms where it's available

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

diff --git a/include/wx/strvararg.h b/include/wx/strvararg.h
index 56ea3007f7cff8f57d2874713637bc07e709c761..4a9f0dbdd654916c20331eb9a803105a8f1cb579 100644 (file)
--- a/include/wx/strvararg.h
+++ b/include/wx/strvararg.h
@@ -156,7 +156,7 @@ public:
 
 #if !wxUSE_UNICODE_WCHAR
     operator const char*() const
-        { return wx_const_cast(wxFormatString*, this)->AsChar(); }
+        { return const_cast<wxFormatString*>(this)->AsChar(); }
 private:
     // InputAsChar() returns the value converted passed to ctor, only converted
     // to char, while AsChar() takes the the string returned by InputAsChar()
@@ -170,7 +170,7 @@ private:
 #if wxUSE_UNICODE && !wxUSE_UTF8_LOCALE_ONLY
 public:
     operator const wchar_t*() const
-        { return wx_const_cast(wxFormatString*, this)->AsWChar(); }
+        { return const_cast<wxFormatString*>(this)->AsWChar(); }
 private:
     const wchar_t* InputAsWChar();
     const wchar_t* AsWChar();
@@ -178,16 +178,8 @@ private:
 #endif // wxUSE_UNICODE && !wxUSE_UTF8_LOCALE_ONLY
 
 private:
-#ifdef __VISUALC__
-    // "struct 'ConvertedBuffer<T>' needs to have dll-interface to be used by
-    // clients of class 'wxString'" - this is private, we don't care
-    #pragma warning (disable:4251)
-#endif
     wxCharBuffer  m_char;
     wxWCharBuffer m_wchar;
-#ifdef __VISUALC__
-    #pragma warning (default:4251)
-#endif
 
     // NB: we can use a pointer here, because wxFormatString is only used
     //     as function argument, so it has shorter life than the string
@@ -195,7 +187,7 @@ private:
     const wxString * const m_str;
     const wxCStrData * const m_cstr;
 
-    DECLARE_NO_COPY_CLASS(wxFormatString)
+    DECLARE_NO_ASSIGN_CLASS(wxFormatString)
 };
 
 // these two helper classes are used to find wxFormatString argument among fixed
@@ -217,18 +209,40 @@ struct wxFormatStringArgument
 };
 
 template<typename T>
-inline wxFormatStringArgument wxFindFormatStringArgument(T WXUNUSED(arg))
+struct wxFormatStringArgumentFinder
 {
-    // by default, arguments are not format strings, so return "not found"
-    return wxFormatStringArgument();
-}
+    static wxFormatStringArgument find(T)
+    {
+        // by default, arguments are not format strings, so return "not found"
+        return wxFormatStringArgument();
+    }
+};
 
-inline wxFormatStringArgument
-wxFindFormatStringArgument(const wxFormatString& arg)
+template<>
+struct wxFormatStringArgumentFinder<const wxFormatString&>
 {
-    return wxFormatStringArgument(&arg);
+    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<wxCharBuffer>
+    : public wxFormatStringArgumentFinder<const wxCharBuffer&> {};
+
+template<>
+struct wxFormatStringArgumentFinder<wxWCharBuffer>
+    : public wxFormatStringArgumentFinder<const wxWCharBuffer&> {};
+
 
 // ----------------------------------------------------------------------------
 // wxArgNormalizer*<T> converters
@@ -550,7 +564,7 @@ struct wxArgNormalizerNarrowChar
         // 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 = wxUniChar(value).GetValue();
+            m_value = wx_truncate_cast(T, wxUniChar(value).GetValue());
         else
             m_value = value;
     }
@@ -715,6 +729,15 @@ private:
 #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
@@ -730,6 +753,14 @@ private:
 #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
 // comma as separator.
@@ -784,9 +815,11 @@ private:
 // And the same for fixed arguments, _not_ normalizing it:
 #define _WX_VARARG_PASS_FIXED(i)        f##i
 
-#define _WX_VARARG_FIND_FMT(i)          (wxFindFormatStringArgument(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))