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
20using namespace boost::type_erasure;
21
22template<class T = _self>
23struct common : ::boost::mpl::vector<
24 copy_constructible<T>,
25 typeid_<T>
26> {};
27
28BOOST_AUTO_TEST_CASE(test_negate)
29{
30 typedef ::boost::mpl::vector<common<>, negatable<> > test_concept;
31 any<test_concept> x(1);
32 any<test_concept> y(-x);
33 BOOST_CHECK_EQUAL(any_cast<int>(y), -1);
34}
35

source code of boost/libs/type_erasure/test/test_negate.cpp