--- a/generate_IEC_std.py	Wed Jul 18 11:51:30 2007 +0200
+++ b/generate_IEC_std.py	Wed Jul 18 11:57:36 2007 +0200
@@ -113,6 +113,7 @@
                 code_gen_dic_decl[paramname+"_type"] = '");\n%s_type_symbol->accept(*this);\ns4o.print("'%(paramname)
             code_gen_dic_decl["return_type"] = '");\nreturn_type_symbol->accept(*this);\ns4o.print("'
             code_gen_dic_decl["param_count"] = '");\ns4o.print_integer(nb_param);\ns4o.print("'
+            code_gen_dic_decl["common_type"] = '");\nlast_type_symbol->accept(*this);\ns4o.print("'
             code_gen_dic_decl["start_bool_filter"] = '");\nif (search_expression_type->is_bool_type(last_type_symbol))\n  s4o.print("('
             code_gen_dic_decl["end_bool_filter"] = '");\nif (search_expression_type->is_bool_type(last_type_symbol)) {\n  s4o.print("&1");\n  s4o.print(")");\n}\ns4o.print("'