...is the error I am receiving with this in the first and second subroutine:
use strict;

# finds the words in $otherfile that are not in $wordfile;

my $wordfile = shift;
my $otherfile = shift;

sub dict_line{
  our %dict;
  my $line = shift;
  print $line;
  my @words = split $line;
  #print"@words";
  foreach my $word (@words){
    $dict{lc $word}++;
    #print "$word\n";
  }
}

sub find_missing{
  our %dict;
  my $line = shift;
  my @words = split $line;
  foreach my $word (@words){
    print "$word\n";
    my $word = lc shift;
    print "* $word\n" if !defined $dict{$word};
  }
}
  
sub read_file{
  my $file=shift;
  my $subref = shift || \&read_line;

  open (FILE, $file) || die "couldn't open $file $!";
  while (my $line = <FILE>) {
    $subref->($line);
  }
}

read_file $wordfile, \&dict_line;
read_file $otherfile, \&find_missing;

[download]
The $line variable that is being split prints fine
just before the call to split.

In reply to uninitialized value in split by jjohhn

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