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I think that construct is still legal in Perl 5.8.x but you may be falling foul of use strict;. I may be wrong but I suspect that your $h contains a string which is the name of another variable thus setting up a soft reference. The following have been run under Perl 5.8.4

Firstly with no use strict; or use warnings;

#use strict; #use warnings; $h = "fred"; %$h = (name => "Jim", age => 34); print $h->{name}, "\n"; print $fred{age}, "\n";

produces

Jim 34

Switching on strict like this

use strict; use warnings; our %fred; my $h = "fred"; %$h = (name => "Jim", age => 34); print $h->{name}, "\n"; print $fred{age}, "\n";

produces

Can't use string ("fred") as a HASH ref while "strict refs" in use at +pbeck2 line 8.

because use strict; objects to soft references. Only by switching strict off for the duration of a code block can you use soft references.

use strict; use warnings; our %fred; my $h = "fred"; { no strict q(refs); %$h = (name => "Jim", age => 34); print $h->{name}, "\n"; } print $fred{age}, "\n";

produces

Jim 34

I hope this clarifies what might be happening with your "illegal" code.

Cheers,

JohnGG


In reply to Re: Relative Merits of References by johngg
in thread Relative Merits of References by pbeckingham

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