Re: [boost] BOOST_ENUM proposal

From: Yuval Ronen (ronen_yuval_at_[hidden])
Date: 2005-12-11 04:30:41

Larry Evans wrote:
> On 12/10/2005 09:09 AM, Yuval Ronen wrote:
> 
>>One point in favour of array, is that it ensures us of O(1) lookup time. 
>>A good compiler might do that with switch/case but I'm not sure it's 
>>something that we can rely on. 
> 
> Actually, Andy Little did a comparison which showed the switch was
> faster than the array:
> 
> http://groups.google.com/group/comp.lang.c++.moderated/msg/6de73412e552c387

I'm not really sure, but I have feeling the switch/case advantage is 
marginal (am I right?). And another thing I'm not sure of is whether 
this must be the case with all compilers. If not, then I think I prefer 
a good algorithm to relying on compiler optimization which might not be 
so good in compilers other than those tested in this test.

But that's just me...