Exception Handling, Logging, and Parameter Validation

16

Another Caveat

• Remember - $@ is cleared every time eval is used
• Copy it before doing stuff:

if (my $exc = $@)
{
    do_something();
    handle_exception($exc);
}

• Because do_something() might use eval or call code which uses eval
• This is doubly important if do_something() might invoke some other module's code