1#ifndef BOOST_CORE_LIGHTWEIGHT_TEST_TRAIT_HPP
2#define BOOST_CORE_LIGHTWEIGHT_TEST_TRAIT_HPP
3
4// MS compatible compilers support #pragma once
5
6#if defined(_MSC_VER)
7# pragma once
8#endif
9
10// boost/core/lightweight_test_trait.hpp
11//
12// BOOST_TEST_TRAIT_TRUE, BOOST_TEST_TRAIT_FALSE
13//
14// Copyright 2014 Peter Dimov
15//
16// Distributed under the Boost Software License, Version 1.0.
17// See accompanying file LICENSE_1_0.txt or copy at
18// http://www.boost.org/LICENSE_1_0.txt
19
20#include <boost/core/lightweight_test.hpp>
21#include <boost/core/typeinfo.hpp>
22
23namespace boost
24{
25
26namespace detail
27{
28
29template< class T > inline void test_trait_impl( char const * trait, void (*)( T ),
30 bool expected, char const * file, int line, char const * function )
31{
32 if( T::value == expected )
33 {
34 report_errors_remind();
35 }
36 else
37 {
38 BOOST_LIGHTWEIGHT_TEST_OSTREAM
39 << file << "(" << line << "): predicate '" << trait << "' ["
40 << boost::core::demangled_name( BOOST_CORE_TYPEID(T) ) << "]"
41 << " test failed in function '" << function
42 << "' (should have been " << ( expected? "true": "false" ) << ")"
43 << std::endl;
44
45 ++test_errors();
46 }
47}
48
49} // namespace detail
50
51} // namespace boost
52
53#define BOOST_TEST_TRAIT_TRUE(type) ( ::boost::detail::test_trait_impl(#type, (void(*)type)0, true, __FILE__, __LINE__, BOOST_CURRENT_FUNCTION) )
54#define BOOST_TEST_TRAIT_FALSE(type) ( ::boost::detail::test_trait_impl(#type, (void(*)type)0, false, __FILE__, __LINE__, BOOST_CURRENT_FUNCTION) )
55
56#endif // #ifndef BOOST_CORE_LIGHTWEIGHT_TEST_TRAIT_HPP
57

source code of boost/boost/core/lightweight_test_trait.hpp