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// Copyright 2018-2019 Hans Dembinski
//
// Distributed under the Boost Software License, Version 1.0.
// (See accompanying file LICENSE_1_0.txt
// or copy at http://www.boost.org/LICENSE_1_0.txt)
#include <boost/core/lightweight_test.hpp>
#include <boost/histogram/axis/integer.hpp>
#include "throw_exception.hpp"
#include <boost/histogram/histogram.hpp>
#include <boost/histogram/make_histogram.hpp>
#include <boost/range/adaptor/filtered.hpp>
#include <boost/range/numeric.hpp>
using namespace boost::histogram;
using namespace boost::adaptors;
int main() {
auto h = make_histogram(axis::integer<>(1, 4));
h(1, weight(1));
h(2, weight(2));
h(3, weight(3));
h(4, weight(4));
auto s1 = boost::accumulate(h | filtered([](double x) { return x > 2; }), 0.0);
BOOST_TEST_EQ(s1, 7);
return boost::report_errors();
}
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