Re: [FWP] Testing list?

[John Porter <jdporter@min.net>]

Uri Guttman wrote:
> 
> this is illegal:
> 
> perl -e '@a ||= 2'
> Can't modify array deref in logical or assignment at -e line 1, at EOF
> Execution of -e aborted due to compilation errors.
> 
> while this works:
> 
> perl -e '@a = @a || 2 ; print "@a\n"'
> 2
> 
> the definition of ||= requires the lvalue be readable as an rvalue of
> the same type. 

Just because it *does* doesn't mean it *has to*.

The perl interpreter is already so bloody powerful,
there's no reason not to make it a little bit more so.  :-)

-- 
John Porter

"There are people who have fun studying the C++ spec for
literally seconds on end, I'm sure..."    John Vlissides


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