Function Syntax

Syntax of a (non-recursive) function:

 
 [   prefix   ] FUNCTION    procname   ( [   dummy args   ])

 		    declaration of dummy args   

 		    declaration of local objects   

 		 		 ...

 		    executable stmts, assignment of result   

  [ CONTAINS

 		    internal procedure definitions    ]

 END [ FUNCTION [    procname    ] ]

here  prefix , specifies the result type. or,

 
 FUNCTION    procname   ( [   dummy args   ])

 		    declaration of dummy args   

 		    declaration of result type   

 		    declaration of local objects   

 		 		 ...

 		    executable stmts, assignment of result   

  [ CONTAINS

 		    internal procedure definitions    ]

 END [ FUNCTION [    procname    ] ]

here,  procname must be declared.

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