/usr/include/boost/accumulators/statistics
Edit: /usr/include/boost/accumulators/statistics/count.hpp (2013B)
///////////////////////////////////////////////////////////////////////////////
// count.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_COUNT_HPP_EAN_28_10_2005
#define BOOST_ACCUMULATORS_STATISTICS_COUNT_HPP_EAN_28_10_2005
#include
#include
#include
#include
#include
namespace boost { namespace accumulators
{
namespace impl
{
///////////////////////////////////////////////////////////////////////////////
// count_impl
struct count_impl
: accumulator_base
{
// for boost::result_of
typedef std::size_t result_type;
count_impl(dont_care)
: cnt(0)
{
}
void operator ()(dont_care)
{
++this->cnt;
}
result_type result(dont_care) const
{
return this->cnt;
}
// make this accumulator serializeable
template
void serialize(Archive & ar, const unsigned int file_version)
{
ar & cnt;
}
private:
std::size_t cnt;
};
} // namespace impl
///////////////////////////////////////////////////////////////////////////////
// tag::count
//
namespace tag
{
struct count
: depends_on<>
{
/// INTERNAL ONLY
///
typedef mpl::always impl;
};
}
///////////////////////////////////////////////////////////////////////////////
// extract::count
//
namespace extract
{
extractor const count = {};
BOOST_ACCUMULATORS_IGNORE_GLOBAL(count)
}
using extract::count;
}} // namespace boost::accumulators
#endif