366. Re: keys of anonymous hash

On Fri, 16 Apr 2004 22:09:05 +0900
"Bruce." <kbk@...> さんwrote:

> %hash = (a => b, c=>d, e=>f);
> $hareshre = \%hash;
> print keys $hashref;
> 
> とすると
> 
> Type of arg 1 to keys must be hash (not scalar dereference) at hash.pl line 3, near "$hashref;"
> Execution of hash.pl aborted due to compilation errors.

%hash = (a => b, c => d, e => f);
$hashref = \%hash;
print keys %$hashref; # hashのデリファレンス

でいいのでは。

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