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DO.WHEN (DW)
Syntax
DO.WHEN (DW)
The DO.WHEN; command creates a condition that controls the execution of logic. This
logic is delimited by an END; END.EXIT; or END.NO.PRINT; command which must follow
the DO.WHEN; condition.
To create a compound condition involving several DO.WHEN; statements, you can use the
AND and OR logical connectors. In compound conditions, the OR connectors are
evaluated first. Compound conditions require only one END; END.NO.PRINT; or
END.EXIT; command, as they create a single logical condition.
You can use the ELSE; command to handle reverse conditions.
Caution
On OS 2200 based LINC Systems, DO.WHEN; commands with more than 50
conditions will cause COBOL compilation errors when compiling your system.
DDDBDD DD DBDDDDDDDBDBD D
3 3 33
DY @D DY@D DD
DDDDDDD DDDDDDBDDDDDDDBDDDDDDDDDDDDDDDDDDD4
3 3
DDDDDDDDDDDDDDDDDDDDDDDDDDY CD DBDDDDDDDDDD
3 3
@D DDY
The relation value represents a relational operator, which must be delimited with spaces.
Valid relational operators for the DO.WHEN; command are shown in the following table.
Relation Description
= Equal
> Greater than
< Less than
NOT = Not equal to
NOT > Less than or equal to
NOT < Greaterthanorequalto
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