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- // Copyright David Abrahams 2002.
- // Distributed under 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/static_assert.hpp>
- #include <boost/python/detail/if_else.hpp>
- #include <boost/python/detail/type_traits.hpp>
- typedef char c1;
- typedef char c2[2];
- typedef char c3[3];
- typedef char c4[4];
- template <unsigned size>
- struct choose
- {
- typedef typename boost::python::detail::if_<
- (sizeof(c1) == size)
- >::template then<
- c1
- >::template elif<
- (sizeof(c2) == size)
- >::template then<
- c2
- >::template elif<
- (sizeof(c3) == size)
- >::template then<
- c3
- >::template elif<
- (sizeof(c4) == size)
- >::template then<
- c4
- >::template else_<void*>::type type;
- };
- int main()
- {
- BOOST_STATIC_ASSERT((boost::python::detail::is_same<choose<1>::type,c1>::value));
- BOOST_STATIC_ASSERT((boost::python::detail::is_same<choose<2>::type,c2>::value));
- BOOST_STATIC_ASSERT((boost::python::detail::is_same<choose<3>::type,c3>::value));
- BOOST_STATIC_ASSERT((boost::python::detail::is_same<choose<4>::type,c4>::value));
- BOOST_STATIC_ASSERT((boost::python::detail::is_same<choose<5>::type,void*>::value));
- return 0;
- }
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