Finished review/fixes of Math and Miscellaneous categories of functions and macros.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@52743 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

interface/cpp.h

@@ -6,34 +6,47 @@
 // Licence:     wxWindows license
 /////////////////////////////////////////////////////////////////////////////
 
+
+/** @ingroup group_funcmacro_misc */
 //@{
 /**
-    These macro return the concatenation of the tokens passed as their arguments.
-    Unlike when using the preprocessor @c  operator, the arguments undergo
-    the macro expansion before being concatenated.
+    This macro returns the concatenation of the arguments passed. Unlike when
+    using the preprocessor operator, the arguments undergo macro expansion
+    before being concatenated.
+
+    @header{wx/cpp.h}
 */
-wxCONCAT(x1, x2);
-wxCONCAT3(x1, x2, x3);
-wxCONCAT4(x1, x2, x3, x4);
-wxCONCAT5(x1, x2, x3, x4, x5);
+#define wxCONCAT(x1, x2)
+#define wxCONCAT3(x1, x2, x3)
+#define wxCONCAT4(x1, x2, x3, x4)
+#define wxCONCAT5(x1, x2, x3, x4, x5)
 //@}
 
+/** @ingroup group_funcmacro_misc */
+//@{
 
 /**
-Returns the string representation of the given symbol which can be either a
-literal or a macro (hence the advantage of using this macro instead of the
-standard preprocessor @c # operator which doesn't work with macros).
-Notice that this macro always produces a @c char string, use
-wxSTRINGIZE_T() to build a wide string Unicode build.
+    Returns the string representation of the given symbol which can be either a
+    literal or a macro (hence the advantage of using this macro instead of the
+    standard preprocessor @c # operator which doesn't work with macros).
 
-@see wxCONCAT()
+    Notice that this macro always produces a @c char string, use
+    wxSTRINGIZE_T() to build a wide string Unicode build.
+
+    @see wxCONCAT()
+
+    @header{wx/cpp.h}
 */
-#define wxSTRINGIZE(x)     /* implementation is private */
+#define wxSTRINGIZE(x)
 
 /**
     Returns the string representation of the given symbol as either an ASCII or
-    Unicode string, depending on the current build. This is the Unicode-friendly
-    equivalent of wxSTRINGIZE().
-*/
-#define wxSTRINGIZE_T(x)     /* implementation is private */
+    Unicode string, depending on the current build. This is the
+    Unicode-friendly equivalent of wxSTRINGIZE().
+
+    @header{wx/cpp.h}
+*/
+#define wxSTRINGIZE_T(x)
+
+//@}