Re: [boost] tuple benchmarks show marked differences from std::tuple(was Re: Interesting article on stack-based TMP

Subject: Re: [boost] tuple benchmarks show marked differences from std::tuple(was Re: Interesting article on stack-based TMP
From: Larry Evans (cppljevans_at_[hidden])
Date: 2012-10-25 16:53:12

On 10/25/12 11:58, Larry Evans wrote:
[snip]
> On 10/24/12 14:09, Eric Niebler wrote:
[snip]
>>
>> The source code is here:
>>
>> https://github.com/ericniebler/home/tree/master/src/tuple
>>
> 
> I downloaded that
[snip]
>   After looking at the code (and Makefile) it's not clear how the
>   benchmark was done.  The Makefile has nothing about timing in it,
>   and the readme.txt mentions nothing about timing.  Looking at the
>   tuple.cpp code shows something with tree_builder in it, which sounds
>   like it might be the benchmark code; however, so does
>   unrolled_tuple.cpp. 
[snip]
I should have looked closer at the code which would have shown that
tuple.cpp and unrolled_tuple.cpp are the same starting at:

  template<int I>
  struct tree_builder
  {

So the benchmark code was just the code starting at that point, AFAICT.
Right?

-regards,
Larry