When a keyword operand is omitted, the default value specified for the corresponding keyword parameter is the value assigned to the parameter. When a positional operand or sublist entry is omitted, the null character string is assigned to the parameter.
The following example shows a macro instruction preceded by its corresponding prototype statement. The macro instruction operands that correspond to the third and sixth operands of the prototype statement are omitted in this example.
EXAMPLE &A,&B,&C,&D,&E,&F macro prototype
EXAMPLE 17,*+4,,AREA,FIELD(6) macro instruction
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