Description

A block data subprogram can contain as many labeled common blocks and data initializations as desired.

The BLOCK DATA statement must be the first statement in a block data subprogram.

The only other statements that can appear in a block data subprogram are:

• COMMON

• DATA

• DIMENSION

• END

• EQUIVALENCE

• IMPLICIT

• PARAMETER

• RECORD

• SAVE

• STRUCTURE

• Type statements

Only an entity defined in a labeled common block can be initially defined in a block data subprogram.

If an entity in a labeled common block is initially defined, all entities having storage units in the common block storage sequence must be specified, even if they are not all initially defined.