The omitted-argument condition determines whether an argument was provided to a function, method, or program.
 
  General Format 
 
	  
	 data-name-1 IS [ NOT ] OMITTED
 
  Syntax Rules 
 
	   
	 - Data-name-1 must be a formal parameter defined in the source element in which this condition is specified. 
	 
General Rules 
 
	   
	 - The result of the OMITTED test is true if one of the following conditions applies: 
		 
		  - If the OMITTED phrase, rather than an identifier or literal, is specified as the argument corresponding to data-name-1 in the statement that activated this program, function, or method 
		  
- The argument corresponding to data-name-1 was a trailing argument that was omitted from the activating statement 
		  
- If the argument corresponding to data-name-1 is itself a formal parameter for which the omitted-argument condition is true. 
		  
 
- When used, NOT and the keyword OMITTED specify one condition to be executed for truth values.