You might consider using BCMath Arbitrary Precision Mathematics Functions <cid:[EMAIL PROTECTED]>
Jason Teagle wrote: >----- 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 >-------------------------------------------- > > > >
