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- Subject: Re: metamethod __lt oddity?
- From: RLake@...
- Date: Sat, 18 Jan 2003 16:02:35 -0500
> Useful, but I don't think we need an extra symbol. We could have "raweq"
> test for raw equality, just like we have "rawget/rawset" for the indexing
> symbol "[ ]".
This has been hashed out at length on the mailing list, so I won't go over
old ground again. There is a raweq function, by the way.
> They keep two, which could then be made contradictory. Why? If
> the authors didn't want to supply the whole set (lt, le, gt, ge) why
> they just reduce it to a single operator?
This has also been hashed out at length on the mailing list.
If a < b is not the same as b > a, then you probably shouldn't be using
things that look like comparison operators.
Having both < and <= is useful in cases where one or the other is
easier to implement. In partial ordering, <= is often easier to implement.