Procedure Characteristics

Characteristics of Dummy Arguments

Each dummy argument has the characteristic that it is a dummy data object, a dummy procedure, or an asterisk indicating an alternate return indicator.

The characteristics of a dummy data object are as follows:

• Its type and type parameters (if any)

• Its shape

• Its intent

• Its corank

• Its codimensions

• Whether it is optional

• Whether it is allocatable

• Whether it has the ASYNCHRONOUS, CONTIGUOUS, VALUE, or VOLATILE attribute

• Whether it is a pointer or a target

• Whether it is polymorphic

• Whether or not it is assumed rank or assumed type

If a type parameter of an object or a bound of an array is not a constant expression, a characteristic is the exact dependence on the entities in the expression. Another characteristic is whether a shape, size, or type parameter is assumed or deferred.

The characteristics of a dummy procedure are as follows:

• Whether it is optional

• The explicitness of its interface

• Its characteristics as a procedure if the interface is explicit

• Whether it is a pointer

Characteristics of Function Results

The characteristics of a function result are as follows:

• Its type, type parameters (if any), and rank

• Whether it is allocatable

• Whether it has the CONTIGUOUS attribute

• Whether it is a pointer

• Whether it is a procedure pointer

• Whether it is polymorphic

If a function result is an array that is not allocatable or a pointer, a characteristic is its shape.

If a type parameter of a function result or a bound of a function result array is not a constant expression, a characteristic is the exact dependence on the entities in the expression.

If type parameters of a function result are deferred, a characteristic is which parameters are deferred. Another characteristic is whether the length of a character function result is assumed.