Provides a way to replace functions that return false on failure with
equivalents that die instead, so you can use the functions without having
to test the return values explicitly. Fatal reports errors via
die
;
you can trap them with
$SIG{__DIE__}
if you want to take some action
before the program exits. You can use Fatal for both user-defined
functions and Perl core operators except
exec
and
system
.