mrb_class_under_defined docs renamed parent and child to outer and inner

include/mruby.h

@@ -567,18 +567,18 @@ MRB_API mrb_bool mrb_class_defined(mrb_state *mrb, const char *name);
 MRB_API struct RClass * mrb_class_get(mrb_state *mrb, const char *name);
 
 /**
- * Returns an mrb_bool. True if child class was defined, and false if the child class was not defined.
+ * Returns an mrb_bool. True if inner class was defined, and false if the inner class was not defined.
  *
  * Example:
  *     void
  *     mrb_example_gem_init(mrb_state* mrb) {
- *       struct RClass *example_parent, *example_child;
+ *       struct RClass *example_outer, *example_inner;
  *       mrb_bool cd;
  *
- *       example_parent = mrb_define_module(mrb, "ExampleParent");
+ *       example_outer = mrb_define_module(mrb, "ExampleOuter");
  *
- *       example_child = mrb_define_class(mrb, "ExampleChild", mrb->object_class);
- *       cd = mrb_class_under_defined(mrb, example_parent, "ExampleChild");
+ *       example_inner = mrb_define_class_under(mrb, example_outer, "ExampleInner", mrb->object_class);
+ *       cd = mrb_class_under_defined(mrb, example_outer, "ExampleInner");
  *
  *       // If mrb_class_under_defined returns 1 then puts "True"
  *       // If mrb_class_under_defined returns 0 then puts "False"
@@ -591,8 +591,8 @@ MRB_API struct RClass * mrb_class_get(mrb_state *mrb, const char *name);
  *      }
  *
  * @param [mrb_state*] mrb The current mruby state.
- * @param [struct RClass *] outer The name of the parent class.
- * @param [const char *] name A string representing the name of the child class.
+ * @param [struct RClass *] outer The name of the outer class.
+ * @param [const char *] name A string representing the name of the inner class.
  * @return [mrb_bool] A boolean value.
  */
 MRB_API mrb_bool mrb_class_under_defined(mrb_state *mrb, struct RClass *outer, const char *name);