libstdc++-v3/testsuite/20_util/underlying_type/requirements/typedefs-1.cc

   1 // { dg-options "-std=gnu++11" }
   2 // { dg-do compile }
   3 //
   4 // Copyright (C) 2011-2016 Free Software Foundation, Inc.
   5 //
   6 // This file is part of the GNU ISO C++ Library.  This library is free
   7 // software; you can redistribute it and/or modify it under the
   8 // terms of the GNU General Public License as published by the
   9 // Free Software Foundation; either version 3, or (at your option)
  10 // any later version.
  11 //
  12 // This library is distributed in the hope that it will be useful,
  13 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 // GNU General Public License for more details.
  16 //
  17 // You should have received a copy of the GNU General Public License along
  18 // with this library; see the file COPYING3.  If not see
  19 // <http://www.gnu.org/licenses/>.
  20
  21 //
  22 // NB: This file is for testing type_traits with NO OTHER INCLUDES.
  23
  24 #include <type_traits>
  25
  26 void test01()
  27 {
  28   typedef enum E1 : unsigned { }                     test_type1;
  29   typedef enum E2 : char { }                         test_type2;
  30   typedef enum class E3 { }                          test_type3;
  31   typedef enum class E4 : unsigned char { c = 1 }    test_type4;
  32   typedef enum class E5 : int { a = -1, b = 1 }      test_type5;
  33   typedef enum class E6 : long { c = __LONG_MAX__ }  test_type6;
  34
  35   // Check for required typedef
  36   typedef std::underlying_type<test_type1>::type  type1;
  37   typedef std::underlying_type<test_type2>::type  type2;
  38   typedef std::underlying_type<test_type3>::type  type3;
  39   typedef std::underlying_type<test_type4>::type  type4;
  40   typedef std::underlying_type<test_type5>::type  type5;
  41   typedef std::underlying_type<test_type6>::type  type6;
  42 }