Time#to_i and Time#usec should care about mrb_int overflow on MRB_INT16; ref #2495

mrbgems/mruby-time/src/time.c

@@ -673,6 +673,11 @@ mrb_time_to_i(mrb_state *mrb, mrb_value self)
   struct mrb_time *tm;
 
   tm = DATA_GET_PTR(mrb, self, &mrb_time_type, struct mrb_time);
+#ifdef MRB_INT16
+  if (tm->sec > MRB_INT_MAX || tm->sec < MRB_INT_MIN) {
+    return mrb_float_value(mrb, (mrb_float)tm->sec);
+  }
+#endif
   return mrb_fixnum_value((mrb_int)tm->sec);
 }
 
@@ -684,6 +689,11 @@ mrb_time_usec(mrb_state *mrb, mrb_value self)
   struct mrb_time *tm;
 
   tm = DATA_GET_PTR(mrb, self, &mrb_time_type, struct mrb_time);
+#ifdef MRB_INT16
+  if (tm->usec > MRB_INT_MAX || tm->usec < MRB_INT_MIN) {
+    return mrb_float_value(mrb, (mrb_float)tm->usec);
+  }
+#endif
   return mrb_fixnum_value((mrb_int)tm->usec);
 }