Null Clauses

A clause consisting only of blanks or comments or both is a null clause. It is completely ignored (except that if it includes a comment it is traced, if appropriate).

Note: A null clause is not an instruction; for example, putting an extra semicolon after the THEN or ELSE in an IF instruction is not equivalent to using a dummy instruction (as it would be in PL/I). The NOP instruction is provided for this purpose.

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Timestamp icon Last updated: Tuesday, 7 January 2014


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