Imported Upstream version 1.57.0
[platform/upstream/boost.git] / libs / core / test / explicit_operator_bool_compile_fail_conv_pvoid.cpp
1 /*
2  *          Copyright Andrey Semashev 2007 - 2013.
3  * Distributed under the Boost Software License, Version 1.0.
4  *    (See accompanying file LICENSE_1_0.txt or copy at
5  *          http://www.boost.org/LICENSE_1_0.txt)
6  */
7 /*!
8  * \file   explicit_operator_bool_compile_fail_conv_pvoid.cpp
9  * \author Andrey Semashev
10  * \date   17.07.2010
11  *
12  * \brief  This test checks that explicit operator bool cannot be used in
13  *         an unintended context.
14  */
15
16 #define BOOST_TEST_MODULE explicit_operator_bool_compile_fail_conv_pvoid
17
18 #include <boost/utility/explicit_operator_bool.hpp>
19
20 namespace {
21
22     // A test object that has the operator of explicit conversion to bool
23     struct checkable
24     {
25         BOOST_EXPLICIT_OPERATOR_BOOL()
26         bool operator! () const
27         {
28             return false;
29         }
30     };
31
32 } // namespace
33
34 int main(int, char*[])
35 {
36     checkable val;
37     void* p = val;
38
39     return 0;
40 }