Work on streams of all sorts. More to come.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@2908 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/variant.h

@@ -54,9 +54,13 @@ public:
     // Copy to data
     virtual void Copy(wxVariantData& data) = 0;
     virtual bool Eq(wxVariantData& data) const = 0;
+#if wxUSE_STD_IOSTREAM
     virtual bool Write(ostream& str) const = 0;
+#endif
     virtual bool Write(wxString& str) const = 0;
+#if wxUSE_STD_IOSTREAM
     virtual bool Read(istream& str) = 0;
+#endif
     virtual bool Read(wxString& str) = 0;
     // What type is it? Return a string name.
     virtual wxString GetType() const = 0;