Re: die and exit

Jeff Pang wrote:
> Does die call exit when it's excuted?
> If so,when I overwrote exit() function in my script,would die call this customized exit?
> 
> I gave a test,but didn't see die calling exit distinctly.

Neither did I.

But you can override die() directly.

     sub die {
         print "test die\n";
         CORE::die;
     }

and call it as

     ¨

or

     main::die;

or, probably better:

     use subs 'die';

     sub die {
         print "test die\n";
         CORE::die;
     }

     die;

Finally, this is another technique for overriding a built-in function:

     BEGIN {
         *CORE::GLOBAL::die = sub {
             print "test die\n";
             CORE::die;
         };
     }

     die;

The latter one also affects calls for die() from use()d and require()d 
modules.

HOWEVER, since you asked on a CGI list, I suspect that you really don't 
need to use any of the above methods. To have die messages appear in the 
browser you'd better do:

     use CGI::Carp 'fatalsToBrowser';

     die "test die";

HTH

-- 
Gunnar Hjalmarsson
Email: http://www.gunnar.cc/cgi-bin/contact.pl