1 files changed, 6 insertions, 12 deletions
diff --git a/src/gc.c b/src/gc.c
index 2a50cb98c..b7c31223f 100644
--- a/src/gc.c
+++ b/src/gc.c
@@ -982,8 +982,8 @@ gc_enable(mrb_state *mrb, mrb_value obj)
   int old = mrb->gc_disabled;
 
   mrb->gc_disabled = FALSE;
-  if (old) return mrb_true_value();
-  return mrb_false_value();
+
+  return mrb_true_or_false_value(old);
 }
 
 /*
@@ -1004,8 +1004,8 @@ gc_disable(mrb_state *mrb, mrb_value obj)
   int old = mrb->gc_disabled;
 
   mrb->gc_disabled = TRUE;
-  if (old) return mrb_true_value();
-  return mrb_false_value();
+
+  return mrb_true_or_false_value(old);
 }
 
 /*
@@ -1101,10 +1101,7 @@ change_gen_gc_mode(mrb_state *mrb, mrb_int enable)
 static mrb_value
 gc_generational_mode_get(mrb_state *mrb, mrb_value self)
 {
-  if (mrb->is_generational_gc_mode)
-    return mrb_true_value();
-  else
-    return mrb_false_value();
+  return mrb_true_or_false_value(mrb->is_generational_gc_mode);
 }
 
 /*
@@ -1124,10 +1121,7 @@ gc_generational_mode_set(mrb_state *mrb, mrb_value self)
   if (mrb->is_generational_gc_mode != enable)
     change_gen_gc_mode(mrb, enable);
 
-  if (enable)
-    return mrb_true_value();
-  else
-    return mrb_false_value();
+  return mrb_true_or_false_value(enable);
 }
 
 #ifdef GC_TEST