'several pages of "if x = 1..." through "if x = 77..." statements. ' ...
that seems typical of COBOL code that I happened upon.
"The more verbose the better" was its apparent motto.
M
On 11/12/2019 17:10, 'Jim Russell' via Programming wrote:
Thanks, and of course.
Mine was a knee jerk reacti
Thanks, and of course.
Mine was a knee jerk reaction to some COBOL code long ago from a young
programmer who, having not yet mastered the intricacies of a "go to depending
on" clause, instead had several pages of "if x = 1..." through "if x = 77..."
statements.
> On Dec 11, 2019, at 11:09 AM,
https://www.jsoftware.com/help/dictionary/csel.htm
But, also, https://www.jsoftware.com/help/dictionary/d520.htm and
https://www.jsoftware.com/help/dictionary/d621.htm
But it's usually not wise to make efficiency claims which are not
supported by benchmarks.
And, benchmarks tend to be specific t
select. in J is equivalent to a series of tests. In fact there is some
extra overhead, so it is used for explanatory value, not for
performance. It's nothing like a computed GOTO.
Henry Rich
On 12/11/2019 11:03 AM, 'Jim Russell' via Programming wrote:
Yes but...
I'd contend that a string of
Yes but...
I'd contend that a string of tests is usually less efficient than (perhaps
calculating) some numeric value that is amenable to a case statement. ( I
should have checked first; J does have a case statement, does it not?)
> On Dec 11, 2019, at 10:32 AM, Henry Rich wrote:
>
> Yes.
>
Yes.
Henry Rich
On 12/11/2019 5:46 AM, 'Mike Day' via Programming wrote:
So is it still ok in J9 - and will it be ok - to continue using the
following paradigm?
if. T do. B
elseif. T1 do. B1
elseif. T2 do. B2
end.
Thanks,
Mike
On 11/12/2019 10:23, Henry Rich wrote:
else. after elsei
So is it still ok in J9 - and will it be ok - to continue using the
following paradigm?
if. T do. B
elseif. T1 do. B1
elseif. T2 do. B2
end.
Thanks,
Mike
On 11/12/2019 10:23, Henry Rich wrote:
else. after elseif. is new in 9.01, and you found a bug in it.
JfC is for J6.02.
Henry Rich
else. after elseif. is new in 9.01, and you found a bug in it.
JfC is for J6.02.
Henry Rich
On 12/10/2019 8:23 PM, Ben Gorte wrote:
Hi,
Despite repeated warnings in JforC I stepped into the trap of using elseif.
and else. in the same if.-statement. It took some effort to find that
error, beca
Hi,
Despite repeated warnings in JforC I stepped into the trap of using elseif.
and else. in the same if.-statement. It took some effort to find that
error, because the behaviour is kind of weird:
iftest =: 3 : 0
if. y=1 do.
echo 'one'
elseif. y=2 do.
echo 'two'
elseif. y=3 do.
echo 'three
