Athanasius and AnomalousMonk already explained the issue. I just wanted to add: The most performant way is the following; it avoids splitting the lines into a list first.
use warnings;
use strict;
my $s = <<'EOF';
int t; //variable t
t->a=0; //t->a does;; something
printf("\nEnter the Employee ID : ");
scanf("%d", ptrx->eid); //employee id ptrx->eid
printf("\nEnter the Employee Name : ");
scanf("%s", ptr->name);
return 0;
EOF
open my $fh, '<', \$s or die $!;
while ( my $line = <$fh> ) {
chomp($line);
print "<$line>\n";
}
close $fh;
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