Negative zero value

["Andy Stark" <astark@...>]

I've just written a quick Lua script to look at the permutation expression
I mentioned in the thread about obfuscating Lua bytecode. The first
iteration of the loop executes as

	(0 * 13) % 38

The value is zero, of course, but it prints out as -0! It turns out that
zero mod anything gives -0 as a result. Bug or feature? (It's on MacOSX
10.3 PPC if that makes any difference.)

&.


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