libstdc++-v3/testsuite/20_util/is_enum/value.cc

   1 // { dg-options "-std=gnu++11" }
   2 // { dg-do compile }
   3
   4 // Copyright (C) 2013-2016 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 #include <type_traits>
  22 #include <testsuite_tr1.h>
  23
  24 void test01()
  25 {
  26   using std::is_enum;
  27   using namespace __gnu_test;
  28
  29   // Positive tests.
  30   static_assert(test_category<is_enum, EnumType>(true), "");
  31
  32   // Negative tests.
  33   static_assert(test_category<is_enum, void>(false), "");
  34   static_assert(test_category<is_enum, int>(false), "");
  35   static_assert(test_category<is_enum, float>(false), "");
  36   static_assert(test_category<is_enum, int[2]>(false), "");
  37   static_assert(test_category<is_enum, int*>(false), "");
  38   static_assert(test_category<is_enum, int(*)(int)>(false), "");
  39   static_assert(test_category<is_enum, float&>(false), "");
  40   static_assert(test_category<is_enum, float(&)(float)>(false), "");
  41   static_assert(test_category<is_enum, int (ClassType::*)>(false), "");
  42   static_assert(test_category<is_enum, int (ClassType::*) (int)>(false), "");
  43   static_assert(test_category<is_enum, int (int)>(false), "");
  44
  45   static_assert(test_category<is_enum, ConvType>(false), "");
  46
  47   // Sanity check.
  48   static_assert(test_category<is_enum, ClassType>(false), "");
  49 }