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1.5.1.10 Function-Identifier



A function-identifier is a syntactically correct sequence of character strings and separators that uniquely references the data item resulting from the evaluation of a function.


    ___ Format _____________________________________________________________ 
   |                                                                        |
   | >>__FUNCTION__function-name-1__ ______________________ ______________> |
   |                                |    <____________     |                |
   |                                |_(____argument-1_|__)_|                |
   |                                                                        |
   | >__ ____________________ ___________________________________________>< |
   |    |_reference-modifier_|                                              |
   |                                                                        |
   |________________________________________________________________________|
argument-1
Must be an identifier, literal (other than a figurative constant), or arithmetic expression.

For more information, see "Intrinsic Functions" in topic 7.1.

function-name-1
Function-name-1 must be one of the Intrinsic Function names.

reference-modifier
May be specified only for functions of the category alphanumeric

A function-identifier that makes reference to an alphanumeric function may be specified anywhere that an identifier is permitted and where references to functions are not specifically prohibited, except as follows:

A function-identifier that makes reference to an integer or numeric function may be used wherever an arithmetic expression is allowed.

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