/usr/include/boost/accumulators/statistics
Edit: /usr/include/boost/accumulators/statistics/rolling_count.hpp (2574B)
///////////////////////////////////////////////////////////////////////////////
// rolling_count.hpp
//
// Copyright 2008 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_ROLLING_COUNT_HPP_EAN_26_12_2008
#define BOOST_ACCUMULATORS_STATISTICS_ROLLING_COUNT_HPP_EAN_26_12_2008
#include
#include
#include
#include
#include
#include
#include
#include
namespace boost { namespace accumulators
{
namespace impl
{
///////////////////////////////////////////////////////////////////////////////
// rolling_count_impl
// returns the count of elements in the rolling window
template
struct rolling_count_impl
: accumulator_base
{
typedef std::size_t result_type;
rolling_count_impl(dont_care)
{}
template
result_type result(Args const &args) const
{
return static_cast(rolling_window_plus1(args).size()) - is_rolling_window_plus1_full(args);
}
// serialization is done by accumulators it depends on
template
void serialize(Archive & ar, const unsigned int file_version) {}
};
} // namespace impl
///////////////////////////////////////////////////////////////////////////////
// tag::rolling_count
//
namespace tag
{
struct rolling_count
: depends_on< rolling_window_plus1 >
{
/// INTERNAL ONLY
///
typedef accumulators::impl::rolling_count_impl< mpl::_1 > impl;
#ifdef BOOST_ACCUMULATORS_DOXYGEN_INVOKED
/// tag::rolling_window::window_size named parameter
static boost::parameter::keyword const window_size;
#endif
};
} // namespace tag
///////////////////////////////////////////////////////////////////////////////
// extract::rolling_count
//
namespace extract
{
extractor const rolling_count = {};
BOOST_ACCUMULATORS_IGNORE_GLOBAL(rolling_count)
}
using extract::rolling_count;
}} // namespace boost::accumulators
#endif