Language Reference

Attributes

Each attribute has a corresponding attribute specification statement, and the syntax diagram provided for the attribute illustrates this form. An entity can also acquire this attribute from a type declaration statement or, in some cases, through a default setting. For example, entity A, said to have the PRIVATE attribute, could have acquired the attribute in any of the following ways:

     REAL, PRIVATE :: A     ! Type declaration statement
     PRIVATE :: A           ! Attribute specification statement
 
     MODULE X
       PRIVATE              ! Default setting
       REAL :: A
     END MODULE

The following table maps out the compatibility of attributes. An "X" indicates whether an entity can have the attributes indicated both horizontally and vertically.

Figure 1.

Note:

IBM Extensions: AUTOMATIC, STATIC, VOLATILE.