Changed some parameters to be const references

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@2205 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

diff --git a/include/wx/string.h b/include/wx/string.h
index d4bffe681961232411a7ed7917fffa4e7526b1b0..d4fdb53bed6c30b349d0ff9555fac77627f277d5 100644 (file)
--- a/include/wx/string.h
+++ b/include/wx/string.h
@@ -1003,14 +1003,14 @@ wxString WXDLLEXPORT operator+(wxChar ch, const wxString& string);
 wxString WXDLLEXPORT operator+(const wxString& string, const wxChar *psz);
 wxString WXDLLEXPORT operator+(const wxChar *psz, const wxString& string);
 #if wxUSE_UNICODE
-inline wxString WXDLLEXPORT operator+(const wxString& string, const wxWCharBuffer buf)
+inline wxString WXDLLEXPORT operator+(const wxString& string, const wxWCharBuffer& buf)
 { return string + (const wchar_t *)buf; }
-inline wxString WXDLLEXPORT operator+(const wxWCharBuffer buf, const wxString& string)
+inline wxString WXDLLEXPORT operator+(const wxWCharBuffer& buf, const wxString& string)
 { return (const wchar_t *)buf + string; }
 #else
-inline wxString WXDLLEXPORT operator+(const wxString& string, const wxCharBuffer buf)
+inline wxString WXDLLEXPORT operator+(const wxString& string, const wxCharBuffer& buf)
 { return string + (const char *)buf; }
-inline wxString WXDLLEXPORT operator+(const wxCharBuffer buf, const wxString& string)
+inline wxString WXDLLEXPORT operator+(const wxCharBuffer& buf, const wxString& string)
 { return (const char *)buf + string; }
 #endif