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Re^2: One piece of code, two mysteries!

by BrowserUk (Pope)
on Oct 05, 2012 at 06:57 UTC ( #997397=note: print w/replies, xml ) Need Help??

in reply to Re: One piece of code, two mysteries!
in thread One piece of code, two mysteries! (UPDATED.)

That's not too useful. By adding || "\$@ $@", you're putting the call to timedCommand() in a scalar context.

Hence, the extra digit you are seeing output is from the return @input in a scalar context and thus is just a count of the number of undefs it contains.

You aren't seeing anything at all from the "\$@ $@" bit -- note: no "$@" in the output.

That might just as well be timedCommand( ... ) ||'' for all the additional information it yields.

The question remains, what happened to the contents of @input; and the answer appears to be: a bug caused it to disappear; which has been fixed if 5.16.

Something I will have to wait until later to verify here.

I'm actually most intrigued by the "modification of a readonly variable" message at this point.

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Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
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[marto]: that is to say, to the best of my knowledge, they never did.
[marto]: they have a commercial product called perlapp
[mark4]: Do you h=know how I can get pp.exe? Is there a module I can install that includes this?
[marto]: I always found Strawberry Perl on windows to be a much better environment, made life much easier
[marto]: pp. install it like you would any other module
[marto]: it probably exists in one of the PPM repositories
[marto]: failing that see the README
[mark4]: I installed "PAR" from the ppm install window. pp.exe. did not show up.

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