Select Code to Download

bool next(Type& arg) {
   if (...) {
...
while (i->next(arg)) {
   ...
}

sub next {
   my  $self            =  $_[0];
...
while ($i->next($arg)) {
   ...
}

sub next {
   my ($self) = @_;
...
while (my ($arg) = $i->next()) {
   ...
}

while (my $arg = $i->next()) {
   ...
}