ceph/src/boost/libs/hana/test/range/sum.cpp

   1 // Copyright Louis Dionne 2013-2016
   2 // Distributed under the Boost Software License, Version 1.0.
   3 // (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
   4
   5 #include <boost/hana/assert.hpp>
   6 #include <boost/hana/core/make.hpp>
   7 #include <boost/hana/equal.hpp>
   8 #include <boost/hana/integral_constant.hpp>
   9 #include <boost/hana/range.hpp>
  10 #include <boost/hana/sum.hpp>
  11 namespace hana = boost::hana;
  12
  13
  14 int main() {
  15     BOOST_HANA_CONSTANT_CHECK(hana::equal(
  16         hana::sum<>(hana::make_range(hana::int_c<-3>, hana::int_c<-3>)),
  17         hana::int_c<0>
  18     ));
  19     BOOST_HANA_CONSTANT_CHECK(hana::equal(
  20         hana::sum<>(hana::make_range(hana::int_c<-3>, hana::int_c<-2>)),
  21         hana::int_c<-3>
  22     ));
  23     BOOST_HANA_CONSTANT_CHECK(hana::equal(
  24         hana::sum<>(hana::make_range(hana::int_c<-3>, hana::int_c<-1>)),
  25         hana::int_c<-3 + -2>
  26     ));
  27     BOOST_HANA_CONSTANT_CHECK(hana::equal(
  28         hana::sum<>(hana::make_range(hana::int_c<-3>, hana::int_c<0>)),
  29         hana::int_c<-3 + -2 + -1>
  30     ));
  31     BOOST_HANA_CONSTANT_CHECK(hana::equal(
  32         hana::sum<>(hana::make_range(hana::int_c<-3>, hana::int_c<1>)),
  33         hana::int_c<-3 + -2 + -1 + 0>
  34     ));
  35     BOOST_HANA_CONSTANT_CHECK(hana::equal(
  36         hana::sum<>(hana::make_range(hana::int_c<-3>, hana::int_c<2>)),
  37         hana::int_c<-3 + -2 + -1 + 0 + 1>
  38     ));
  39     BOOST_HANA_CONSTANT_CHECK(hana::equal(
  40         hana::sum<>(hana::make_range(hana::int_c<-3>, hana::int_c<3>)),
  41         hana::int_c<-3 + -2 + -1 + 0 + 1 + 2>
  42     ));
  43
  44     BOOST_HANA_CONSTANT_CHECK(hana::equal(
  45         hana::sum<>(hana::make_range(hana::int_c<0>, hana::int_c<0>)),
  46         hana::int_c<0>
  47     ));
  48     BOOST_HANA_CONSTANT_CHECK(hana::equal(
  49         hana::sum<>(hana::make_range(hana::int_c<0>, hana::int_c<1>)),
  50         hana::int_c<0>
  51     ));
  52     BOOST_HANA_CONSTANT_CHECK(hana::equal(
  53         hana::sum<>(hana::make_range(hana::int_c<0>, hana::int_c<2>)),
  54         hana::int_c<0 + 1>
  55     ));
  56     BOOST_HANA_CONSTANT_CHECK(hana::equal(
  57         hana::sum<>(hana::make_range(hana::int_c<0>, hana::int_c<3>)),
  58         hana::int_c<0 + 1 + 2>
  59     ));
  60     BOOST_HANA_CONSTANT_CHECK(hana::equal(
  61         hana::sum<>(hana::make_range(hana::int_c<0>, hana::int_c<4>)),
  62         hana::int_c<0 + 1 + 2 + 3>
  63     ));
  64
  65     BOOST_HANA_CONSTANT_CHECK(hana::equal(
  66         hana::sum<>(hana::make_range(hana::int_c<3>, hana::int_c<3>)),
  67         hana::int_c<0>
  68     ));
  69     BOOST_HANA_CONSTANT_CHECK(hana::equal(
  70         hana::sum<>(hana::make_range(hana::int_c<3>, hana::int_c<4>)),
  71         hana::int_c<3>
  72     ));
  73     BOOST_HANA_CONSTANT_CHECK(hana::equal(
  74         hana::sum<>(hana::make_range(hana::int_c<3>, hana::int_c<5>)),
  75         hana::int_c<3 + 4>
  76     ));
  77     BOOST_HANA_CONSTANT_CHECK(hana::equal(
  78         hana::sum<>(hana::make_range(hana::int_c<3>, hana::int_c<6>)),
  79         hana::int_c<3 + 4 + 5>
  80     ));
  81     BOOST_HANA_CONSTANT_CHECK(hana::equal(
  82         hana::sum<>(hana::make_range(hana::int_c<3>, hana::int_c<7>)),
  83         hana::int_c<3 + 4 + 5 + 6>
  84     ));
  85 }