Re: [boost] [units] c++11 features to speed up compilation times

Subject: Re: [boost] [units] c++11 features to speed up compilation times
From: Thorsten Ottosen (thorsten.ottosen_at_[hidden])
Date: 2013-03-20 05:26:20

On 19-03-2013 19:36, Vicente J. Botet Escriba wrote:
> Le 19/03/13 13:44, Oliver Esser a écrit :

>> Maybe one could add an implementation like that to Boost.Units as a
>> C++11 compiler detected feature to speed things up. Maybe I am totally
>> wrong and it is some coincidence that this compiles faster on my
>> platform. I did just minimalistic 'ok it seems to work' testing and
>> was about as thorough with measurements. So see this as an
>> implementation sketch.
> I'm sure that the Unit author will accept patches going forward a C++11
> implementation. I suggest you to prepare a patch to introduce constexpr
> and another to variadic templates separately and see how this improves
> the compilation time. Even if the compilation time is not improved
> substantially these should improve the library however.

+1.

Please make the accessor function constexpr too, to we can perform full 
compile time computations.

-Thorsten