Re: Can you guess the result? Is it a bug?

hmmm.. what am I doing wrong here? (perl, v5.8.0 built for i686-linux)

]$ perl -wMstrict -e"if( my($test) = 0 ) { print 'Passed'; } else { pr
+int 'Failed'; }"
Can't declare stub in "my" at -e line 1, near ") ="
Execution of -e aborted due to compilation errors.

]$ perl -wMstrict -e"if( my($test) = '' ) { print 'Passed'; } else { p
+rint 'Failed'; }"
Can't declare stub in "my" at -e line 1, near ") ="
Execution of -e aborted due to compilation errors.

]$ perl -wMstrict -e"if( my($test) = undef ) { print 'Passed'; } else 
+{ print 'Failed'; }"
Can't declare stub in "my" at -e line 1, near ") ="
Execution of -e aborted due to compilation errors.

]$ perl -wMstrict -e "if( my $test = undef ) { print 'Passed'; } else 
+{ print 'Failed'; }"
syntax error at -e line 1, near "my  ="
Execution of -e aborted due to compilation errors.
[download]

I had to swap "/' to get it to run..

]$ perl -wMstrict -e 'if( my ($test) = undef ) { print "Passed"; } els
+e { print "Failed"; }'
Passed

]$ perl -wMstrict -e 'if( my $test = undef ) { print "Passed"; } else 
+{ print "Failed"; }'
Failed
[download]

cheers,

Comment on Re: Can you guess the result? Is it a bug? Select or Download Code

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Re: Re: Can you guess the result? Is it a bug? by The Mad Hatter (Priest) on Jul 31, 2003 at 03:47 UTC
Because `$test` is in double-quotes, your shell is trying to interpolate it. Since it isn't set though (and there aren't such things as warnings and strict for the shell ; ), it is replaced with nothing and becomes: `perl -wMstrict -e"if( my() = 0 ) { print 'Passed'; } else { print 'Fai +led'; }"` [download] If you escape the `$` you'll be fine. `perl -wMstrict -e"if( my(\$test) = 0 ) { print 'Passed'; } else { prin +t 'Failed'; }"` [download]	[reply] [d/l] [select]
Re: Re: Re: Can you guess the result? Is it a bug? by Cine (Friar) on Jul 31, 2003 at 13:31 UTC
A better way is to make sure the shell doesnt even try... perl -wMstrict -e'if( my() = 0 ) { print "Passed"; } else { print "Failed"; }' T I M T O W T D I	[reply] [d/l]
Re: Re: Can you guess the result? Is it a bug? by BrowserUk (Patriarch) on Jul 31, 2003 at 03:45 UTC
Different command line semantics between Win32 and linux shells. Examine what is said, not who speaks. "Efficiency is intelligent laziness." -David Dunham "When I'm working on a problem, I never think about beauty. I think only how to solve the problem. But when I have finished, if the solution is not beautiful, I know it is wrong." -Richard Buckminster Fuller	[reply]


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