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///////////////////////////////////////////////////////////////////////////////
// min.hpp
//
// Copyright 2005 Eric Niebler. 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)
#ifndef BOOST_ACCUMULATORS_STATISTICS_MIN_HPP_EAN_28_10_2005
#define BOOST_ACCUMULATORS_STATISTICS_MIN_HPP_EAN_28_10_2005
#include <limits>
#include <boost/mpl/placeholders.hpp>
#include <boost/accumulators/framework/accumulator_base.hpp>
#include <boost/accumulators/framework/extractor.hpp>
#include <boost/accumulators/framework/parameters/sample.hpp>
#include <boost/accumulators/numeric/functional.hpp>
#include <boost/accumulators/framework/depends_on.hpp>
#include <boost/accumulators/statistics_fwd.hpp>
namespace boost { namespace accumulators
{
namespace impl
{
///////////////////////////////////////////////////////////////////////////////
// min_impl
template<typename Sample>
struct min_impl
: accumulator_base
{
// for boost::result_of
typedef Sample result_type;
template<typename Args>
min_impl(Args const &args)
: min_(numeric::as_max(args[sample | Sample()]))
{
}
template<typename Args>
void operator ()(Args const &args)
{
numeric::min_assign(this->min_, args[sample]);
}
result_type result(dont_care) const
{
return this->min_;
}
private:
Sample min_;
};
} // namespace impl
///////////////////////////////////////////////////////////////////////////////
// tag::min
//
namespace tag
{
struct min
: depends_on<>
{
/// INTERNAL ONLY
///
typedef accumulators::impl::min_impl<mpl::_1> impl;
};
}
///////////////////////////////////////////////////////////////////////////////
// extract::min
//
namespace extract
{
extractor<tag::min> const min = {};
BOOST_ACCUMULATORS_IGNORE_GLOBAL(min)
}
using extract::min;
}} // namespace boost::accumulators
#endif
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