Moved all interface headers into a 'wx' subdirectory for proper use of Doxygen path settings.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@54385 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

interface/wx/cpp.h

@@ -0,0 +1,52 @@
+/////////////////////////////////////////////////////////////////////////////
+// Name:        cpp.h
+// Purpose:     interface of global functions
+// Author:      wxWidgets team
+// RCS-ID:      $Id$
+// Licence:     wxWindows license
+/////////////////////////////////////////////////////////////////////////////
+
+
+/** @ingroup group_funcmacro_misc */
+//@{
+/**
+    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}
+*/
+#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.
+
+    @see wxCONCAT()
+
+    @header{wx/cpp.h}
+*/
+#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().
+
+    @header{wx/cpp.h}
+*/
+#define wxSTRINGIZE_T(x)
+
+//@}
+