rule/char.hpp [gcc]

diff --git a/roast/include/roast/lexical/rule/char.hpp b/roast/include/roast/lexical/rule/char.hpp
index 413f904..b0171ef 100644 (file)
--- a/roast/include/roast/lexical/rule/char.hpp
+++ b/roast/include/roast/lexical/rule/char.hpp
@@ -39,7 +39,7 @@ namespace roast
                                }
                                
                                template <typename _Strm, typename _Document>
-                               bool generate(_Strm& strm, _Document& doc)
+                               bool generate(_Strm& strm, _Document& doc) const
                                {
                                        strm << _Char;
                                        return true;