Esign Paul Fenwick,
Starfleet Software Services,
Perl Training Andromeda

Sideways propagation

use Fatal qw(open);

… has package wide scope and poor quality errors

use autodie qw(open);

… has lexical scope and produces better errors

eval {
...
}

if ($@) {
...
}

perl 5.10 has given construct instead.

eval {
...
}

given ($@) {
when ...
when ...
...
}

system administration

system("mount /path/to/file");
system("make_backups");
system("delete_archives");

system(“…”) and die “$?” - produces 4096 - exit code from perl « 8.

waitpid - yucky

autodie fixes system result so it behaves like you would expect it to.

system([0,16],"mount /path/to/file");

function is allowed to return 16.

fork special case, 0 means success, non-zero is child id.

sub-class autodie

autodie going into perl 5.10 core. Works with 5.8.0+. Pure perl. No depedancies.

performance? A little bit slower then before.