[begin_label
:] LOOPstatement_list
END LOOP [end_label
]
LOOP
implements a simple loop construct, enabling repeated execution
of the statement list, which consists of one or more statements,
each terminated by a semicolon (;
) statement
delimiter. The statements within the loop are repeated until the
loop is exited; usually this is accomplished with a
LEAVE
statement.
A LOOP
statement can be labeled. end_label
cannot be given unless begin_label
also is present. If both are present, they must be the same.
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