Gohaku wrote:
I am trying to sort an array returned by a subroutine.
No, you are not. You are trying to sort a list returned by a subroutine.
I would like to know why sort doesn't work on a Returned Array and
why the returned array has to be parenthesized.
#sortarray.pl
print join("\n",sort arraytest() ),"\n";
#This works --> print join("\n",sort (arraytest()) ),"\n";
#Don't know why this works --> print join("\n",sort &arraytest() ),"\n";
sub arraytest()
{
my (@array) = qw( 1 2 3 9 8 7 );
return @array;
}
The sort() function is to be used in any of these ways:
sort SUBNAME LIST
sort BLOCK LIST
sort LIST
Accordingly,
sort arraytest()
sorts the empty LIST () in accordance with SUBNAME arraytest, while
sort ( arraytest() )
sorts the list returned by arraytest().
HTH
--
Gunnar Hjalmarsson
Email: http://www.gunnar.cc/cgi-bin/contact.pl
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