| 1 | /////////////////////////////////////////////////////////////////////////////// |
|---|---|
| 2 | // min.hpp |
| 3 | // |
| 4 | // Copyright 2005 Eric Niebler. Distributed under the Boost |
| 5 | // Software License, Version 1.0. (See accompanying file |
| 6 | // LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) |
| 7 | |
| 8 | #ifndef BOOST_ACCUMULATORS_STATISTICS_MIN_HPP_EAN_28_10_2005 |
| 9 | #define BOOST_ACCUMULATORS_STATISTICS_MIN_HPP_EAN_28_10_2005 |
| 10 | |
| 11 | #include <limits> |
| 12 | #include <boost/mpl/placeholders.hpp> |
| 13 | #include <boost/accumulators/framework/accumulator_base.hpp> |
| 14 | #include <boost/accumulators/framework/extractor.hpp> |
| 15 | #include <boost/accumulators/framework/parameters/sample.hpp> |
| 16 | #include <boost/accumulators/numeric/functional.hpp> |
| 17 | #include <boost/accumulators/framework/depends_on.hpp> |
| 18 | #include <boost/accumulators/statistics_fwd.hpp> |
| 19 | |
| 20 | namespace boost { namespace accumulators |
| 21 | { |
| 22 | |
| 23 | namespace impl |
| 24 | { |
| 25 | /////////////////////////////////////////////////////////////////////////////// |
| 26 | // min_impl |
| 27 | template<typename Sample> |
| 28 | struct min_impl |
| 29 | : accumulator_base |
| 30 | { |
| 31 | // for boost::result_of |
| 32 | typedef Sample result_type; |
| 33 | |
| 34 | template<typename Args> |
| 35 | min_impl(Args const &args) |
| 36 | : min_(numeric::as_max(args[sample | Sample()])) |
| 37 | { |
| 38 | } |
| 39 | |
| 40 | template<typename Args> |
| 41 | void operator ()(Args const &args) |
| 42 | { |
| 43 | numeric::min_assign(this->min_, args[sample]); |
| 44 | } |
| 45 | |
| 46 | result_type result(dont_care) const |
| 47 | { |
| 48 | return this->min_; |
| 49 | } |
| 50 | |
| 51 | // make this accumulator serializeable |
| 52 | template<class Archive> |
| 53 | void serialize(Archive & ar, const unsigned int file_version) |
| 54 | { |
| 55 | ar & min_; |
| 56 | } |
| 57 | |
| 58 | private: |
| 59 | Sample min_; |
| 60 | }; |
| 61 | |
| 62 | } // namespace impl |
| 63 | |
| 64 | /////////////////////////////////////////////////////////////////////////////// |
| 65 | // tag::min |
| 66 | // |
| 67 | namespace tag |
| 68 | { |
| 69 | struct min |
| 70 | : depends_on<> |
| 71 | { |
| 72 | /// INTERNAL ONLY |
| 73 | /// |
| 74 | typedef accumulators::impl::min_impl<mpl::_1> impl; |
| 75 | }; |
| 76 | } |
| 77 | |
| 78 | /////////////////////////////////////////////////////////////////////////////// |
| 79 | // extract::min |
| 80 | // |
| 81 | namespace extract |
| 82 | { |
| 83 | extractor<tag::min> const min = {}; |
| 84 | |
| 85 | BOOST_ACCUMULATORS_IGNORE_GLOBAL(min) |
| 86 | } |
| 87 | |
| 88 | using extract::min; |
| 89 | |
| 90 | }} // namespace boost::accumulators |
| 91 | |
| 92 | #endif |
| 93 |