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Subject: Re: [PHP-DEV] Other Integers for php 6
From: mike@php.net (Michael Wallner)

Ezra Nugroho wrote:

> I probably should say integers that I can modify with bitwise operators
> comfortably without changing the signs.  The problem is that people may
> want to do comparison after doing bitwise operations. If the sign is
> changed, the comparison will not be valid, right?
> 
> That's why I want to stay within the positive range.

You just don't care about signedness:

mike@honeybadger:~/development/testimonials$ ./un_or_signed
-1 4294967295 4294967295 -1 EQUAL
mike@honeybadger:~/development/testimonials$ cat un_or_signed.c
#include <stdio.h>

int main(int argc, char *argv[])
{
         signed i1 = -1;
         unsigned i2 = -1;

         printf("%d %u %u %d %s\n", i1, i2, i1, i2, i1==i2?"EQUAL":"DIFFER");

         return 0;
}

Regards,
-- 
Michael - <mike(@)php.net> http://dev.iworks.at/ext-http/http-functions.html.gz