// 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/type_traits/same_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::is_same<choose<1>::type,c1>::value));    BOOST_STATIC_ASSERT((boost::is_same<choose<2>::type,c2>::value));    BOOST_STATIC_ASSERT((boost::is_same<choose<3>::type,c3>::value));    BOOST_STATIC_ASSERT((boost::is_same<choose<4>::type,c4>::value));    BOOST_STATIC_ASSERT((boost::is_same<choose<5>::type,void*>::value));    return 0;}