Important Notice

The pages on this site contain documentation for very old MS-DOS software, purely for historical purposes. If you're looking for up-to-date documentation, particularly for programming, you should not rely on the information found here, as it will be woefully out of date.

                                             ◄Up► ◄Contents► ◄Index► ◄Back►
─────$DECLARE and $NODECLARE────────────────────────────────────────────────
 
     Action
 
     $DECLARE generates warnings for variables that have not appeared in
     specification statements, and $NODECLARE disables these warnings.
 
     Syntax  $[NO]DECLARE
 
     Remarks
 
     The default is $NODECLARE. When $DECLARE is enabled, a warning
     message is generated at the first use of any variable that has
     not been assigned a value in a specification statement. The
     $DECLARE metacommand is primarily a debugging tool that locates
     variables that have not been properly initialized, or that have
     been defined but never used.
 
     Example
 
     $DECLARE
     C     Since the variable z has not been assigned a value,
     C     its use in the statement labeled 100 causes an error:
 
           REAL x, y, z
           y = 1.0
           100   x = y + z
 
     $DECLARE and $NODECLARE are equivalent to the /4{Y | N}d compiler
     option.
                                    -♦-