ceph/src/boost/libs/hana/test/_include/auto/take_back.hpp

   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 #ifndef BOOST_HANA_TEST_AUTO_TAKE_BACK_HPP
   6 #define BOOST_HANA_TEST_AUTO_TAKE_BACK_HPP
   7
   8 #include <boost/hana/assert.hpp>
   9 #include <boost/hana/equal.hpp>
  10 #include <boost/hana/integral_constant.hpp>
  11 #include <boost/hana/take_back.hpp>
  12
  13 #include "test_case.hpp"
  14 #include <laws/base.hpp>
  15
  16
  17 TestCase test_take_back{[]{
  18     namespace hana = boost::hana;
  19     using hana::test::ct_eq;
  20
  21     BOOST_HANA_CONSTANT_CHECK(hana::equal(
  22         hana::take_back(MAKE_TUPLE(), hana::size_c<0>),
  23         MAKE_TUPLE()
  24     ));
  25     BOOST_HANA_CONSTANT_CHECK(hana::equal(
  26         hana::take_back(MAKE_TUPLE(), hana::size_c<1>),
  27         MAKE_TUPLE()
  28     ));
  29     BOOST_HANA_CONSTANT_CHECK(hana::equal(
  30         hana::take_back(MAKE_TUPLE(), hana::size_c<2>),
  31         MAKE_TUPLE()
  32     ));
  33
  34     BOOST_HANA_CONSTANT_CHECK(hana::equal(
  35         hana::take_back(MAKE_TUPLE(ct_eq<0>{}), hana::size_c<0>),
  36         MAKE_TUPLE()
  37     ));
  38     BOOST_HANA_CONSTANT_CHECK(hana::equal(
  39         hana::take_back(MAKE_TUPLE(ct_eq<0>{}), hana::size_c<1>),
  40         MAKE_TUPLE(ct_eq<0>{})
  41     ));
  42     BOOST_HANA_CONSTANT_CHECK(hana::equal(
  43         hana::take_back(MAKE_TUPLE(ct_eq<0>{}), hana::size_c<2>),
  44         MAKE_TUPLE(ct_eq<0>{})
  45     ));
  46     BOOST_HANA_CONSTANT_CHECK(hana::equal(
  47         hana::take_back(MAKE_TUPLE(ct_eq<0>{}), hana::size_c<3>),
  48         MAKE_TUPLE(ct_eq<0>{})
  49     ));
  50
  51     BOOST_HANA_CONSTANT_CHECK(hana::equal(
  52         hana::take_back(MAKE_TUPLE(ct_eq<0>{}, ct_eq<1>{}), hana::size_c<0>),
  53         MAKE_TUPLE()
  54     ));
  55     BOOST_HANA_CONSTANT_CHECK(hana::equal(
  56         hana::take_back(MAKE_TUPLE(ct_eq<0>{}, ct_eq<1>{}), hana::size_c<1>),
  57         MAKE_TUPLE(ct_eq<1>{})
  58     ));
  59     BOOST_HANA_CONSTANT_CHECK(hana::equal(
  60         hana::take_back(MAKE_TUPLE(ct_eq<0>{}, ct_eq<1>{}), hana::size_c<2>),
  61         MAKE_TUPLE(ct_eq<0>{}, ct_eq<1>{})
  62     ));
  63     BOOST_HANA_CONSTANT_CHECK(hana::equal(
  64         hana::take_back(MAKE_TUPLE(ct_eq<0>{}, ct_eq<1>{}), hana::size_c<3>),
  65         MAKE_TUPLE(ct_eq<0>{}, ct_eq<1>{})
  66     ));
  67
  68     BOOST_HANA_CONSTANT_CHECK(hana::equal(
  69         hana::take_back(MAKE_TUPLE(ct_eq<0>{}, ct_eq<1>{}, ct_eq<2>{}, ct_eq<3>{}), hana::size_c<3>),
  70         MAKE_TUPLE(ct_eq<1>{}, ct_eq<2>{}, ct_eq<3>{})
  71     ));
  72
  73     BOOST_HANA_CONSTANT_CHECK(hana::equal(
  74         hana::take_back(MAKE_TUPLE(
  75             ct_eq<0>{}, ct_eq<1>{}, ct_eq<2>{}, ct_eq<3>{}, ct_eq<4>{},
  76             ct_eq<5>{}, ct_eq<6>{}, ct_eq<7>{}, ct_eq<8>{}, ct_eq<9>{}),
  77             hana::size_c<5>),
  78         MAKE_TUPLE(ct_eq<5>{}, ct_eq<6>{}, ct_eq<7>{}, ct_eq<8>{}, ct_eq<9>{})
  79     ));
  80 }};
  81
  82 #endif // !BOOST_HANA_TEST_AUTO_TAKE_BACK_HPP