in reply to hashes,references and subroutines

diarmuid You're nearly there. Try to understand that a hash-of-a-hash is really a hash-of-hashreferences.

If you leave out the referencing in line 2, you are fine (alternatively, do a double dereferencing in the sub).

Hope this helps,

jeroen
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Re: Re: hashes,references and subroutines
by diarmuid (Beadle) on Apr 19, 2001 at 16:59 UTC
    OK, I'm still not sure what's going on.
    I ran

    foreach my $key (sort keys %clocks){
  print_clock_assertions({ $clocks{$key} });       #line 32
}
sub print_clock_assertions {
  my($hashref)=$_[0];
  print STDOUT "ref 1 :$hashref->{'speed'}\n";     #line 44
  }

    [download]
    and got loads of
    Odd number of elements in hash assignment at parse_timing_info.pl line
+ 32.
Use of uninitialized value in concatenation (.) at parse_timing_info.p
+l line 44.
ref 1 :

    [download]
    does $hashref contain the has reference when I do this?

    PS Why how do stop the square bracket being removed?

    Edit: chipmunk 2001-04-19

[reply]
[d/l]
[select]
      You have to remove the {} in line 32.

      PS: Put your code in <code>tags.

[reply]
[d/l]

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