Re: dec*(), *dec(), base_convert() and negative numbers

Matt W wrote: > That's why I'm assuming negative numbers aren't "really" supported > now (not in any form with base_convert()), but it's simply a side > effect of wanting to handle *positive* numbers between LONG_MAX and > ULONG_MAX. e.g. when doing dechex(4294967173) that's a PHP double, > but it gets converted to long (becomes -123), and finally unsigned > long (recovering 4294967173). IOW, after convert_to_long() in dec*() > it doesn't know if -123 or 4294967173 was passed. Make sense? > (Actually, it doesn't, that's my point. :-)) For your computer 0xffffff85 is -123 and 4294967173. It's just how you look on it. > So after more thinking, I figure when upgrading dec*() to handle any > number, absolute value should be used (then int(123) would be > returned in my example). Unless the all the functions are changed to > properly accept/return negatives... I personally don't care either > way on that. No way. Why should hexdec(dechex(-123)) return +123? -- Michael