diff options
Diffstat (limited to 'boost/accumulators/statistics/min.hpp')
-rw-r--r-- | boost/accumulators/statistics/min.hpp | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/boost/accumulators/statistics/min.hpp b/boost/accumulators/statistics/min.hpp new file mode 100644 index 0000000000..83943bdb3c --- /dev/null +++ b/boost/accumulators/statistics/min.hpp @@ -0,0 +1,85 @@ +/////////////////////////////////////////////////////////////////////////////// +// 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 |