bs::sum doesn't exist?

[kamirr]

I've tried #include<boost/simd/function/sum.hpp> (which says that the file doesn't exist) and #include<boost/simd/reduction.hpp>, which resulted in error saying that sum is not a member of boost::simd.

#include <boost/simd/pack.hpp>
#include <boost/simd/reduction.hpp>

int main() {
	boost::simd::pack<float, 2> p;
	p[0] = 1;
	p[1] = 1;

	std::cout << boost::simd::sum(p) << std::endl;
}

There's nothing about bs::sum being removed in the documentation and I believe that it's a crucial feature in this library.