ceph/src/boost/libs/hof/test/virtual_base.cpp

   1 /*=============================================================================
   2     Copyright (c) 2017 Paul Fultz II
   3     virtual_base.cpp
   4     Distributed under the Boost Software License, Version 1.0. (See accompanying
   5     file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
   6 ==============================================================================*/
   7 #include <boost/hof/flip.hpp>
   8 #include <boost/hof/proj.hpp>
   9 #include <boost/hof/construct.hpp>
  10 #include <boost/hof/pipable.hpp>
  11 #include <boost/hof/rotate.hpp>
  12 #include "test.hpp"
  13
  14 struct base {
  15     base(int) {}
  16     base(const base&) {}
  17     virtual ~base();
  18 };
  19
  20 base::~base() {}
  21
  22 struct derived : virtual base {
  23     derived() : base(1) {}
  24     derived(const derived&) : base(1) {}
  25     int operator()(int i, void *) const {
  26         return i;
  27     }
  28     ~derived();
  29 };
  30 derived::~derived() {}
  31
  32 BOOST_HOF_TEST_CASE()
  33 {
  34     BOOST_HOF_TEST_CHECK(boost::hof::flip(derived())(nullptr, 2) == 2);
  35     BOOST_HOF_TEST_CHECK(boost::hof::rotate(derived())(nullptr, 2) == 2);
  36     BOOST_HOF_TEST_CHECK((2 | boost::hof::pipable(derived())(nullptr)) == 2);
  37 }