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// accumulator_concept.hpp
//  Copyright 2005 Eric Niebler. Distributed under the Boost
//  Software License, Version 1.0. (See accompanying file
//  LICENSE_1_0.txt or copy at


#include <boost/concept_check.hpp>

namespace boost { namespace accumulators

template<typename Stat>
struct accumulator_concept
    void constraints()
        // TODO: define the stat concept

    Stat stat;

}} // namespace boost::accumulators