id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
8181	Accumulator : compilation error due to average function	Cecile Daversin <daversin.cecile@…>	Eric Niebler	"Hello, 
I'm trying to use accumulators to compute the mean of a set of double.
Firstly, I instantiate an accumulator_set object using the correct tag, as following :

{{{
#include <boost/accumulators/accumulators.hpp>
#include <boost/accumulators/statistics.hpp>

typedef boost::accumulators::accumulator_set<double, 
               boost::accumulators::stats< boost::accumulators::tag::mean >
         > accumulator_type;

accumulator_type acc;
}}}

I try to compile this code with clang and with gcc(4.6), and both of them give the same kind of error :

With clang :
/usr/include/boost/accumulators/statistics/mean.hpp:42:48: error: too many arguments provided to function-like macro invocation return numeric::average(sum(args), count(args));

With gcc :
/usr/include/boost/accumulators/statistics/mean.hpp:42:59: error: macro ""average"" passed 2 arguments, but takes just 1"	Bugs	closed	To Be Determined	accumulator	Boost 1.49.0	Problem	worksforme