Re: Extending Lua for multiple light userdata types
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- Subject: Re: Extending Lua for multiple light userdata types
- From: Wim Couwenberg <wim.couwenberg@...>
- Date: 2012年11月14日 14:40:35 +0100
> I have been playing a little with the idea of introducing an integer
> type in Lua. I have intended to present some initial thoughts in the
> workshop.
Doubles can represent integers in the range (-2^53, 2^53) exactly, so
why a separate integer type? OK, I'm mainly programming for x86 but if
speed was ever an issue it certainly no longer is with SSE/AVX
available. If the main benefit is 64-bit bit operations then why not
a "bit set" type without the additional coercion rules? Still, it
does impact size, at least on 32-bit systems.
But, an intelligent way to do will be presented at the workshop, no doubt.. ;-)
Bye,
Wim