50 lines
1.3 KiB
C++
50 lines
1.3 KiB
C++
|
|
// (C) Copyright Edward Diener 2011-2015
|
|
// Use, modification and distribution are subject to the Boost Software License,
|
|
// Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
|
|
// http://www.boost.org/LICENSE_1_0.txt).
|
|
|
|
#include <boost/vmd/assert_is_empty.hpp>
|
|
#include <boost/preprocessor/facilities/empty.hpp>
|
|
#include <boost/detail/lightweight_test.hpp>
|
|
|
|
int main()
|
|
{
|
|
|
|
#if BOOST_PP_VARIADICS
|
|
|
|
#define DATA
|
|
#define OBJECT OBJECT2
|
|
#define OBJECT2
|
|
#define FUNC(x) FUNC2(x)
|
|
#define FUNC2(x)
|
|
|
|
BOOST_VMD_ASSERT_IS_EMPTY(BOOST_PP_EMPTY())
|
|
BOOST_VMD_ASSERT_IS_EMPTY(DATA BOOST_PP_EMPTY())
|
|
BOOST_VMD_ASSERT_IS_EMPTY(OBJECT BOOST_PP_EMPTY())
|
|
BOOST_VMD_ASSERT_IS_EMPTY(FUNC(z) BOOST_PP_EMPTY())
|
|
|
|
#if BOOST_VMD_MSVC
|
|
|
|
#define FUNC_GEN() ()
|
|
#define FUNC_GEN2(x) ()
|
|
#define FUNC_GEN3(x,y) ()
|
|
|
|
/* This shows that VC++ does not work correctly in these cases. */
|
|
|
|
BOOST_VMD_ASSERT_IS_EMPTY(FUNC_GEN) /* This incorrectly does not assert */
|
|
BOOST_VMD_ASSERT_IS_EMPTY(FUNC_GEN2) /* This incorrectly does not assert */
|
|
BOOST_VMD_ASSERT_IS_EMPTY(FUNC_GEN3) /* This should produce a compiler error but does not and does not assert */
|
|
|
|
#endif /* BOOST_VMD_MSVC */
|
|
|
|
#else
|
|
|
|
BOOST_ERROR("No variadic macro support");
|
|
|
|
#endif /* BOOST_PP_VARIADICS */
|
|
|
|
return boost::report_errors();
|
|
|
|
}
|