Re: [Fwd] Net::LDAP

[Jose O. <JAO...@lb...>]

I generally use the "if..." type constructions regardless of the programming
language I am using.

Thank you one and all.

John Berthels wrote:

> > $mesg->code && die $mesg->error;
> >
> > That would be a common perlism for do the first part, and if it succeeds,
> > then do the second part.  You can also do that in UNIX shell.
>
> Yes, but it relies on the 'return code of zero is success' convention. The
> code is equivalent to:
>
> # Sorry...I like brackets on function/method calls
> if( $mesg->code() == 0 ) {
>         die $mesg->error();
> }
>
> The ->code() method returns the LDAP result code of the operation the
> $mesg is the result of. LDAP follows the UNIX/C convention of 'return 0
> for success'.
>
> Note that this is the opposite of the convention used in perl, where
> functions and methods return a true value for success and a false value
> for failure.
>
> (Except for the system() call, which follows the Unix convention since it
> invokes a Unix command line (OK...or a WinNT command line)).
>
> So in perl you have the common idiom::
>
> open FOO, "< foo" || die "ack : $!";
>
> and there the '||' is replaced with a '&&' in the LDAP example code
> because of the different return convention.
>
> Yours pedantically,
>
> jb