The PL/I leave statement is very different from the C continue and that ilk.
Consider
outer: . . . ;
. . .
nested: . . . ;
. . .
innermost: . . . ;
. . .
. . . leave ; /* .leaves current group, here innnermost */
if . . . then leave outer ; /* leaves outer */
else leave nested ; /* leaves nested */
end innermost ;
. . .
end nested ;
if . . . then leave ; /* leaves current group, here outer */
. . .
end outer ;
which permit any nesting, even some unattractive ones, to be exited
from cleanly.
Paul Gilmartin will object to these [and other] uses of labels, but
they are in fact innocuous.
John Gilmore, Ashland, MA 01721 - USA
----------------------------------------------------------------------
For IBM-MAIN subscribe / signoff / archive access instructions,
send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
