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Language 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
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:
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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