Thanks muchly for the suggestions. It seems that executing the script whilst running a debug build via Visual Studio caused ActiveState's Perl to run rather than the version I was supposed to be using, indicating a path issue. This explains the sudden failure of bitwise AND.

The notion that $hash is being converted to float appears to stand up; by changing the AND to "% 4294927296", the script works properly in both versions of Perl and all is well in my world again. :D

Update: Oh, and to further show that it was a float issue, the ActiveState Perl was 32-bit, the version I normally use is indeed a 64-bit build.

In reply to Re^2: Bitwise & stopped working? by Krokus
in thread Bitwise & stopped working? by Krokus

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