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

   1 // { dg-do compile { target c++11 } }
   2
   3 // 2013-05-02  Paolo Carlini  <pcarlini@suse.de>
   4 //
   5 // Copyright (C) 2013-2022 Free Software Foundation, Inc.
   6 //
   7 // This file is part of the GNU ISO C++ Library.  This library is free
   8 // software; you can redistribute it and/or modify it under the
   9 // terms of the GNU General Public License as published by the
  10 // Free Software Foundation; either version 3, or (at your option)
  11 // any later version.
  12 //
  13 // This library is distributed in the hope that it will be useful,
  14 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 // GNU General Public License for more details.
  17 //
  18 // You should have received a copy of the GNU General Public License along
  19 // with this library; see the file COPYING3.  If not see
  20 // <http://www.gnu.org/licenses/>.
  21
  22 #include <type_traits>
  23 #include <testsuite_tr1.h>
  24
  25 void test01()
  26 {
  27   using std::is_null_pointer;
  28   using namespace __gnu_test;
  29
  30   static_assert(test_category<is_null_pointer, std::nullptr_t>(true), "");
  31
  32   static_assert(test_category<is_null_pointer, int>(false), "");
  33   static_assert(test_category<is_null_pointer, float>(false), "");
  34   static_assert(test_category<is_null_pointer, EnumType>(false), "");
  35   static_assert(test_category<is_null_pointer, int*>(false), "");
  36   static_assert(test_category<is_null_pointer, int(*)(int)>(false), "");
  37   static_assert(test_category<is_null_pointer, int (ClassType::*)>(false), "");
  38   static_assert(test_category<is_null_pointer,
  39                 int (ClassType::*) (int)>(false), "");
  40   static_assert(test_category<is_null_pointer, int[2]>(false), "");
  41   static_assert(test_category<is_null_pointer, float[][3]>(false), "");
  42   static_assert(test_category<is_null_pointer, EnumType[2][3][4]>(false), "");
  43   static_assert(test_category<is_null_pointer, int*[3]>(false), "");
  44   static_assert(test_category<is_null_pointer, int(*[][2])(int)>(false), "");
  45   static_assert(test_category<is_null_pointer,
  46                 int (ClassType::*[2][3])>(false), "");
  47   static_assert(test_category<is_null_pointer,
  48                 int (ClassType::*[][2][3]) (int)>(false), "");
  49   static_assert(test_category<is_null_pointer, ClassType>(false), "");
  50   static_assert(test_category<is_null_pointer, PODType>(false), "");
  51   static_assert(test_category<is_null_pointer, void>(false), "");
  52   static_assert(test_category<is_null_pointer, NType>(false), "");
  53   static_assert(test_category<is_null_pointer, TType>(false), "");
  54   static_assert(test_category<is_null_pointer, SLType>(false), "");
  55 }