Lets first deal with the main code. You wrote:

foreach my $key (sort keys %clocks){ print_clock_assertions(\{ $clocks{'$key'} }); }

By putting single quotes around $key, you are now passing literally the text $key to the subroutine so you need to remove those single quotes as in:

foreach my $key (sort keys %clocks){ print_clock_assertions(\{ $clocks{$key} }); }

Next, as I understood you you had has that contained references to hashes that contained clock information. In which the act of writting $clocks{$key} would return a reference to a clock hash, so you don't need to enclose the that in \{ }. So the next revision is:

foreach my $key (sort keys %clocks){ print_clock_assertions($clocks{$key}); }

Your subroutine looks fine, though I always have problems discerning when perl will recognize something as an expression in double quotes or not. So if you do have problems change:

print STDOUT "ref 1 :$hashref->{'speed'}\n";

To:

print STDOUT "ref 1 :", $hashref->{'speed'}, "\n";
Cheers...james

In reply to Re: hashes,references and subroutines by Anonymous Monk
in thread hashes,references and subroutines by diarmuid

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":



  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.