control error will can only be caught inside the caller not the callee.
try. v2'' catch. ... end.
The real annoyance is that it will not report the actual offending line. Imagine
if you have a lot of control structures inside a long explicit definition, it
can be debug, but with extra effect. I had reported this years ago.
Björn Helgason wrote:
When I put try in the beginning of a verb I expect it to catch all errors in
the verb.
It is not picking up the error when a name inn if. is not defined.
If I have undefined name in the verb then tr. catch picks it up but not when
try. catch. is not working when a name is undefined in an if statement
v1 ''
ok
v2=: 3 : 0
try. a=.3
if. b do. r=.'ok' end.
catch. r=.'not ok' end.
)
v2 ''
|control error: v2
| v2''
|[-0]
--------------------
v=: 3 : 0
try.
2+3
a=. 3 4$ 1 4 6 2
NB. b + 3
NB. if. a do. 3 + 4 end.
NB. if. c do. 3 + 4 end.
a + 3
catch.
a + 4
end.
)
v=: 3 : 0
try.
2+3
a=. 3 4$ 1 4 6 2
NB. b + 3
if. a do. 3 + 4 end.
NB. if. c do. 3 + 4 end.
a + 3
catch.
a + 4
end.
)
v ''
4 7 9 5
4 7 9 5
4 7 9 5
v=: 3 : 0
try.
2+3
a=. 3 4$ 1 4 6 2
NB. b + 3
if. a do. 3 + 4 end.
if. c do. 3 + 4 end.
a + 3
catch.
a + 4
end.
)
v ''
|control error: v
| v''
|[-0]
2008/2/27, Roger Hui <[EMAIL PROTECTED]>:
All you are saying is that errors can happen in programs
and some errors are tough to handle.
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