ceph/src/boost/libs/type_erasure/test/test_subscript.cpp

   1 // Boost.TypeErasure library
   2 //
   3 // Copyright 2011 Steven Watanabe
   4 //
   5 // Distributed under the Boost Software License Version 1.0. (See
   6 // accompanying file LICENSE_1_0.txt or copy at
   7 // http://www.boost.org/LICENSE_1_0.txt)
   8 //
   9 // $Id$
  10
  11 #include <boost/type_erasure/any.hpp>
  12 #include <boost/type_erasure/builtin.hpp>
  13 #include <boost/type_erasure/operators.hpp>
  14 #include <boost/type_erasure/any_cast.hpp>
  15 #include <boost/mpl/vector.hpp>
  16
  17 #define BOOST_TEST_MAIN
  18 #include <boost/test/unit_test.hpp>
  19
  20 using namespace boost::type_erasure;
  21
  22 template<class T = _self>
  23 struct common : ::boost::mpl::vector<
  24     copy_constructible<T>,
  25     typeid_<T>
  26 > {};
  27
  28 BOOST_AUTO_TEST_CASE(test_basic)
  29 {
  30     typedef ::boost::mpl::vector<common<>, subscriptable<int&> > test_concept;
  31     int i[5];
  32     any<test_concept> x(&i[0]);
  33     BOOST_CHECK_EQUAL(&x[0], &i[0]);
  34 }
  35
  36 BOOST_AUTO_TEST_CASE(test_basic_const)
  37 {
  38     typedef ::boost::mpl::vector<common<>, subscriptable<int&, const _self> > test_concept;
  39     int i[5];
  40     const any<test_concept> x(&i[0]);
  41     BOOST_CHECK_EQUAL(&x[0], &i[0]);
  42 }
  43
  44 BOOST_AUTO_TEST_CASE(test_any_result)
  45 {
  46     typedef ::boost::mpl::vector<common<>, common<_a>, subscriptable<_a&, const _self> > test_concept;
  47     typedef ::boost::mpl::map<
  48         ::boost::mpl::pair<_self, int*>,
  49         ::boost::mpl::pair<_a, int>
  50     > types;
  51     int i[5];
  52     any<test_concept> x(&i[0], make_binding<types>());
  53     any<test_concept, _a&> y(x[0]);
  54     BOOST_CHECK_EQUAL(any_cast<int*>(&y), &i[0]);
  55 }
  56
  57 BOOST_AUTO_TEST_CASE(test_any_result_const)
  58 {
  59     typedef ::boost::mpl::vector<common<>, common<_a>, subscriptable<const _a&, const _self> > test_concept;
  60     typedef ::boost::mpl::map<
  61         ::boost::mpl::pair<_self, const int*>,
  62         ::boost::mpl::pair<_a, int>
  63     > types;
  64     const int i[5] = { 0, 0, 0, 0, 0 };
  65     any<test_concept> x(&i[0], make_binding<types>());
  66     any<test_concept, const _a&> y(x[0]);
  67     BOOST_CHECK_EQUAL(any_cast<const int*>(&y), &i[0]);
  68 }