Re: [Boost-users] [accumulators] Compilation Problem

From: Olivier Tournaire (olitour_at_[hidden])
Date: 2007-12-12 17:42:28

Thank you Eric. I finally found the answer thanks to the doc. However in 
the doc, you  use

typedef iterator_range<std::vector<std::pair<double, double> >::iterator 
histogram_type;

And it does not compile because iterator_range is in the boost namespace 
that I did not defined earlier. I had to declare the histogram_type this 
way :

typedef boost::iterator_range<std::vector<std::pair<double, double> 
 >::iterator histogram_type;
And, finally, extract the result

histogram_type histogram = density(angular_acc);

Now, it works and compile fine. Thank you for this very usefull lib !

Regards,

Olivier

Eric Niebler a écrit :
> Olivier Tournaire wrote:
>   
>> Thank you Eric, it now compiles fine.
>> However, I am still having problem to acces the histogram :
>>
>> typedef iterator_range<std::vector<std::pair<double, double> >::iterator 
>>  > histogram_type;
>>                                         histogram_type histogram = 
>> tag::density(angular_acc); // error C2143: erreur de syntaxe : absence 
>> de ';' avant '<' (--> "syntax error : missing ';' before '<'")
>>     
>
> Your problem is here, but I bet you can find it yourself if you read the 
> docs on extracting results: http://tinyurl.com/2q2ttl 
> (http://boost-sandbox.sourceforge.net/libs/accumulators/doc/html/accumulators/user_s_guide.html#accumulators.user_s_guide.the_accumulators_framework.extracting_results)
>
> Hint: feature tags are in the "tags" namespace, but extractors are not.
>
> And for the return type of the density extractor, you should look at the 
> docs for density: http://tinyurl.com/3ycetz 
> (http://boost-sandbox.sourceforge.net/libs/accumulators/doc/html/accumulators/user_s_guide/the_statistical_accumulators_library.html#accumulators.user_s_guide.the_statistical_accumulators_library.density)
>
>   

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