Flow-control structures: Difference between revisions
→raising conditions: mention Call On. references under Call and Signal to be added.
(→signal: added indentation, list of some ways to HALT a REXX program. -- ~~~~) |
Walterpachl (talk | contribs) (→raising conditions: mention Call On. references under Call and Signal to be added.) |
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Moral: don't do that.
</pre>
A note on REXX on VM and zOS as well as ooRexx:
<br>Three conditions allow to specify CALL On condition: ERROR, FAILURE, and HALT.
From the corresponding condition handlers one can RETURN to the instruction
following the instruction/command where the condition was encountered.
<br>A short example:
<lang>Say 'Interrupt this program after a short while'
Call on any name xxx
Do i=1 To 10000000
j=i**2+1
End
xxx: Say i j
Return</lang>
===return===
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