Import r67258 of the wxWidgets trunk, which I expect will before

long become wxWidgets 2.9.2, which in turn is expected to be the
last 2.9 release before the 3.0 stable release.

Since the full wxWidgets distribution is rather large, I have
imported only the parts that we use, on a subdirectory basis:

art
include/wx/*.*
include/wx/aui
include/wx/cocoa
include/wx/generic
include/wx/gtk
include/wx/meta
include/wx/msw
include/wx/osx
include/wx/persist
include/wx/private
include/wx/protocol
include/wx/unix
src/aui
src/common
src/generic
src/gtk
src/msw
src/osx
src/unix


git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@7380 8ced0084-cf51-0410-be5f-012b33b47a6e

Externals/wxWidgets3/include/wx/meta/movable.h

@@ -0,0 +1,45 @@
+/////////////////////////////////////////////////////////////////////////////
+// Name:        wx/meta/movable.h
+// Purpose:     Test if a type is movable using memmove() etc.
+// Author:      Vaclav Slavik
+// Created:     2008-01-21
+// RCS-ID:      $Id: movable.h 64589 2010-06-14 15:12:37Z JMS $
+// Copyright:   (c) 2008 Vaclav Slavik
+// Licence:     wxWindows licence
+/////////////////////////////////////////////////////////////////////////////
+
+#ifndef _WX_META_MOVABLE_H_
+#define _WX_META_MOVABLE_H_
+
+#include "wx/meta/pod.h"
+#include "wx/string.h" // for wxIsMovable<wxString> specialization
+
+// Helper to decide if an object of type T is "movable", i.e. if it can be
+// copied to another memory location using memmove() or realloc() C functions.
+// C++ only gurantees that POD types (including primitive types) are
+// movable.
+template<typename T>
+struct wxIsMovable
+{
+    wxDEFINE_TEMPLATE_BOOL_VALUE(wxIsPod<T>::value);
+};
+
+// Macro to add wxIsMovable<T> specialization for given type that marks it
+// as movable:
+#define WX_DECLARE_TYPE_MOVABLE(type)                       \
+    template<> struct wxIsMovable<type>                     \
+    {                                                       \
+        wxDEFINE_TEMPLATE_BOOL_VALUE(true);                 \
+    };
+
+// Our implementation of wxString is written in such way that it's safe to move
+// it around (unless position cache is used which unfortunately breaks this).
+// OTOH, we don't know anything about std::string.
+// (NB: we don't put this into string.h and choose to include wx/string.h from
+// here instead so that rarely-used wxIsMovable<T> code isn't included by
+// everything)
+#if !wxUSE_STL && !wxUSE_STRING_POS_CACHE
+WX_DECLARE_TYPE_MOVABLE(wxString)
+#endif
+
+#endif // _WX_META_MOVABLE_H_