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Flow-control structures: Difference between revisions
→signal: replaced the REXX program, included output of same. -- ~~~~
(→leave: re-instated REXX program.) |
(→signal: replaced the REXX program, included output of same. -- ~~~~) |
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Line 1,859:
...
x=oopsay+1
novalue: say
say '───────────────────────────error!─────────────────────────────────'
say 'that reference to oopsay (above) will cause control to get here.'
parse source . . fid .
say 'undefined REXX variable' condition("D")▼
say; say 'REXX raised a NOVALUE error in program:' fid
say; say '
say; say 'the REXX statement is:' /*put it on separate line.*/
say sourceline(sigl)▼
say 'REXX source statement is:'▼
say; say 'which code:' condition('C') "error"
▲say sourceline(sigl)
say; say "Moral: shouldn't do that."
▲exit 13
'''output'''
<pre>
───────────────────────────error!─────────────────────────────────
that reference to oopsay (above) will cause control to get here.
REXX raised a NOVALUE error in program: D:\flow_sig.rex
it occurred on line 20
x=oopsay+1
which code: NOVALUE error
REXX variable: OOPSAY
Moral: shouldn't do that.
</pre>
=={{header|Ruby}}==
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