HP 3000 Manuals

COBOL/HP-UX Language Reference for the Series 700 and 800

IF Statement with Conditional Compilation 

General Formats 

Format 1 


            

Format 2 

     $IF literal - 3 [NOT] DEFINED 

General Rules 

   1.  The whole statement must appear on a single line.

   2.  literal-1, literal-2, or literal-3 can be either numeric or
       alphanumeric.

   3.  A format 2 $IF statement evaluates as true if its referenced
       constant is described as a 78 level item in the Working-Storage
       Section or by a previous CONSTANT Directive, regardless of its
       value.

   4.  If the condition is evaluated true the source lines following the
       $IF statement are processed.  If the condition evaluates false,
       COBOL source lines are ignored until the next conditional
       compilation line is encountered.

   5.  A $IF can be nested within another $IF.

MPE/iX 5.0 Documentation