----- Original Message ----- From: "Jonathan Rosenberg" <[EMAIL PROTECTED]> To: "Jason Teagle" <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]> Sent: Monday, June 03, 2002 3:18 PM Subject: RE: [PHP] Re: PHP & Hex Numbers
> > When doing arithmetic in code, you should always be > > prepared to handle signed and unsigned. > > Thanks for the reply. I figured something like this was going > on. > > But, how does one become "prepared" to handle signed & unsigned > integers? Is PHP consistent regarding signed/unsigned when it > does arithmetic on integers? I don't know the answer to that question (yet). What I meant was, we should always be thinking about numbers possibly being negative when treated as signed (which I believe is the default when using numbers for arithmetic), and if necessary account for it. For example, testing if $result < 0 would alert us to the fact that it is probably too large for a signed 32-bit integer, and needs special handling. I don't know if PHP supports a larger integer type (64 bits, for example) - if it does, that helps since you can cast to that type to ensure it is added correctly. -------------------------------------------- _ _ o o Jason Teagle < [EMAIL PROTECTED] v -------------------------------------------- -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
