mrbc.c: simplify place holder functions; #5622

mrbgems/mruby-bin-mrbc/tools/mrbc/mrbc.c

@@ -368,16 +368,29 @@ mrb_final_mrbgems(mrb_state *mrb)
 #endif
 
 #ifdef MRB_USE_COMPLEX
+mrb_value mrb_complex_to_i(mrb_state *mrb, mrb_value comp)
+{
+  /* dummy method */
+  return mrb_nil_value();
+}
 mrb_value mrb_complex_to_f(mrb_state *mrb, mrb_value comp)
 {
-  mrb_raise(mrb, E_NOTIMP_ERROR, "unavailable for core only");
+  /* dummy method */
+  return mrb_nil_value();
 }
 #endif
 
 #ifdef MRB_USE_RATIONAL
 mrb_value
+mrb_rational_to_i(mrb_state *mrb, mrb_value rat)
+{
+  /* dummy method */
+  return mrb_nil_value();
+}
+mrb_value
 mrb_rational_to_f(mrb_state *mrb, mrb_value rat)
 {
-  mrb_raise(mrb, E_NOTIMP_ERROR, "unavailable for core only");
+  /* dummy method */
+  return mrb_nil_value();
 }
 #endif