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# objc_super

Specifies the superclass of an instance.

```
struct objc_super
```

## Discussion

The compiler generates an `objc_super` data structure when it encounters the `super` keyword as the receiver of a message. It specifies the class definition of the particular superclass that should be messaged.

## Topics

### Fields

[`receiver`](/documentation/ObjectiveC/objc_super-swift.struct/receiver)

A pointer of type [`objc_object`](/documentation/ObjectiveC/objc_object). Specifies an instance of a class.

[`super_class`](/documentation/ObjectiveC/objc_super-swift.struct/super_class)

A pointer to a [`Class`](/documentation/ObjectiveC/Class) data structure. Specifies the particular superclass of the instance to message.

### Instance Properties

[`receiver`](/documentation/ObjectiveC/objc_super-swift.struct/receiver)

A pointer of type [`objc_object`](/documentation/ObjectiveC/objc_object). Specifies an instance of a class.

[`super_class`](/documentation/ObjectiveC/objc_super-swift.struct/super_class)

A pointer to a [`Class`](/documentation/ObjectiveC/Class) data structure. Specifies the particular superclass of the instance to message.

## Relationships

### Conforms To

[`BitwiseCopyable`](/documentation/Swift/BitwiseCopyable)

---

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