Release 10.1A: OpenEdge Development:
Progress 4GL Reference

> ## DEFINED preprocessor function

> Returns the status of a preprocessor name or include file argument name. You can use the DEFINED function only within a preprocessor &IF expression.

> #### Syntax

>     DEFINED ( name )

> ``name``

> Preprocessor name or include file argument name whose status you want to check. You do not specify `name` as a preprocessor name reference or include file argument reference. That is, it is not quoted and does not appear in the reference form, {&`name`}. For example if you had a preprocessor name MAX-EXPENSE, the argument would appear as follows:

>     DEFINED(MAX-EXPENSE)

> #### Note

> This function returns a value of 1 if the argument was a name defined with the &GLOBAL-DEFINE directive; a value of 2 if the argument was passed as an include file parameter; and a value of 3 if the argument was a name defined with the &SCOPED-DEFINE directive. If the argument was not defined and was not an include file parameter, then this function returns a value of 0. The value returned refers to the definition that is current at the point of the call.

> #### See also

> { } Include file reference, &GLOBAL-DEFINE preprocessor directive, &SCOPED-DEFINE preprocessor directive

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