ceph/src/boost/libs/type_traits/test/mpl_interop_test2.cpp

   1
   2 //  (C) Copyright John Maddock 2000.
   3 //  Use, modification and distribution are subject to the
   4 //  Boost Software License, Version 1.0. (See accompanying file
   5 //  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
   6
   7 #include <boost/type_traits/is_void.hpp>
   8 #include <boost/mpl/if.hpp>
   9 #include <boost/static_assert.hpp>
  10
  11 template <class T>
  12 struct if_test
  13 {
  14    typedef typename boost::mpl::if_<
  15       boost::is_void<T>,
  16       int, T>::type type;
  17 };
  18
  19 if_test<void>::type t1 = 0;
  20 if_test<double>::type t2 = 0;
  21
  22 int main()
  23 {
  24    return (int)(t1 + t2);
  25 }