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

   1
   2 //  Copyright Peter Dimov 2015
   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.tt.org/LICENSE_1_0.txt)
   6
   7 #include "test.hpp"
   8 #include "check_type.hpp"
   9 #ifdef TEST_STD
  10 #  include <type_traits>
  11 #else
  12 #  include <boost/type_traits/common_type.hpp>
  13 #endif
  14 #include <iostream>
  15
  16 struct X {};
  17 struct Y {};
  18
  19 TT_TEST_BEGIN(common_type_sfinae)
  20 {
  21 #if !defined(BOOST_NO_CXX11_TEMPLATE_ALIASES) && !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES)
  22
  23     {
  24         tt::common_type<int, void*> tmp;
  25         (void)tmp;
  26     }
  27
  28     {
  29         tt::common_type<X, Y> tmp;
  30         (void)tmp;
  31     }
  32
  33     {
  34         tt::common_type<X&, int const*> tmp;
  35         (void)tmp;
  36     }
  37
  38     {
  39         tt::common_type<X, Y, int, void*> tmp;
  40         (void)tmp;
  41     }
  42
  43 #endif
  44 }
  45 TT_TEST_END