# EXTENDS_TYPE_OF

Inquiry Intrinsic Function (Generic): Inquires whether the dynamic type of an object is an extension type of the dynamic type of another object.

result = EXTENDS_TYPE_OF (a , mold)

a | (Input) Is an object of extensible type. If it is a pointer, it must not have an undefined association status.
mold | (Input) Is an object of extensible type. If it is a polymorphic pointer, it must not have an undefined association status.

## Results

The result type is default logical scalar.

The following determines the result value:

- If mold is unlimited polymorphic and is a disassociated pointer or an unallocated allocatable, the result is .TRUE..

- If a is unlimited polymorphic and is a disassociated pointer or an unallocated allocatable, the result is .FALSE..

- If the dynamic type of a or mold is extensible, the result is true only if the dynamic type of a is an extension type of the dynamic type of mold.

Otherwise, the result is processor dependent.

Parent topic: E to F