Re: Failure in bitwise operations moving from 5.2.x to 5.3.x

> Now:  I did a little more looking around this morning, and it looks > like I may well run into problems here given that I'm moving from a > 32-bit architecture to a 64-bit architecture.  Bitwise math is still > fairly obscure to me, so it's likely that I'm overlooking something > obvious, but maybe instead of asking "How do I fix this?" I should be > asking "What would the right way to do this have been?"  As I think I > said before, I didn't actually write most of this code, I inherited > it, and as long as the input and output of the class remain the same, > I don't actually care how the work is done. > > > If anyone has any useful input here, I'd appreciate it! > > -Alex > As it turns out, the most important lesson here is: "Don't trust what anyone tells you." The old server is 64-bit. The new server is 32-bit. Once I stopped to check that myself, it all became clear. For the archives, here's what happened. Everything worked fine until I ran bindec() on the binary netmask; at that point it returned a float rather than an int, as it it used to. Therefore, when I ran ip2long on the result, it choked, and returned bool(false). Which isn't really useful when you're trying to produce a human-readable netmask, when you get right down to it. I still don't have a solution that will work on a 32-bit server, but now that I know what's going on, I should be able to either find something that will work, or get things moved to a 64-bit machine. -Alex