diff -r 27f246b35ac2 -r 783ef40344dd stage3/fill_candidate_datatypes.hh
--- a/stage3/fill_candidate_datatypes.hh	Tue Aug 20 11:11:09 2013 +0100
+++ b/stage3/fill_candidate_datatypes.hh	Tue Aug 20 11:15:40 2013 +0100
@@ -89,7 +89,8 @@
     bool  match_nonformal_call(symbol_c *f_call, symbol_c *f_decl);
     bool  match_formal_call   (symbol_c *f_call, symbol_c *f_decl, symbol_c **first_param_datatype = NULL);
     void  handle_function_call(symbol_c *fcall, generic_function_call_t fcall_data);
-    void *handle_implicit_il_fb_call(symbol_c *il_instruction, const char *param_name, symbol_c *&called_fb_declaration);
+    void *handle_implicit_il_fb_call(symbol_c *il_instruction, const char *param_name,   symbol_c *&called_fb_declaration);
+    void *handle_S_and_R_operator   (symbol_c *symbol,         const char *operator_str, symbol_c *&called_fb_declaration);
     void *handle_equality_comparison(const struct widen_entry widen_table[], symbol_c *symbol, symbol_c *l_expr, symbol_c *r_expr);
     void *handle_binary_expression  (const struct widen_entry widen_table[], symbol_c *symbol, symbol_c *l_expr, symbol_c *r_expr);
     void *handle_binary_operator    (const struct widen_entry widen_table[], symbol_c *symbol, symbol_c *l_expr, symbol_c *r_expr);