-template <class T_comparable, class T_hint>
-bool _compare_hint(const char *file, int line, const char *func, T_comparable __expected, T_comparable __actual, T_hint __hint)
+template <class T1_comparable, class T2_comparable, class T_hint>
+bool _compare_hint(const char *file, int line, const char *func, T1_comparable __expected, T2_comparable __actual, T_hint __hint)