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

   1 // { dg-options "-std=gnu++11" }
   2 // { dg-do compile }
   3
   4 // 2005-01-24  Paolo Carlini  <pcarlini@suse.de>
   5 //
   6 // Copyright (C) 2005-2016 Free Software Foundation, Inc.
   7 //
   8 // This file is part of the GNU ISO C++ Library.  This library is free
   9 // software; you can redistribute it and/or modify it under the
  10 // terms of the GNU General Public License as published by the
  11 // Free Software Foundation; either version 3, or (at your option)
  12 // any later version.
  13 //
  14 // This library is distributed in the hope that it will be useful,
  15 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 // GNU General Public License for more details.
  18 //
  19 // You should have received a copy of the GNU General Public License along
  20 // with this library; see the file COPYING3.  If not see
  21 // <http://www.gnu.org/licenses/>.
  22
  23 #include <type_traits>
  24 #include <testsuite_tr1.h>
  25
  26 void test01()
  27 {
  28   using std::is_unsigned;
  29   using namespace __gnu_test;
  30
  31   static_assert(test_category<is_unsigned, void>(false), "");
  32
  33   static_assert(test_category<is_unsigned, char>(char(-1) > char(0)), "");
  34   static_assert(test_category<is_unsigned, signed char>(false), "");
  35   static_assert(test_category<is_unsigned, unsigned char>(true), "");
  36 #ifdef _GLIBCXX_USE_WCHAR_T
  37   static_assert(test_category<is_unsigned, wchar_t>
  38                 (wchar_t(-1) > wchar_t(0)), "");
  39 #endif
  40   static_assert(test_category<is_unsigned, short>(false), "");
  41   static_assert(test_category<is_unsigned, unsigned short>(true), "");
  42   static_assert(test_category<is_unsigned, int>(false), "");
  43   static_assert(test_category<is_unsigned, unsigned int>(true), "");
  44   static_assert(test_category<is_unsigned, long>(false), "");
  45   static_assert(test_category<is_unsigned, unsigned long>(true), "");
  46   static_assert(test_category<is_unsigned, long long>(false), "");
  47   static_assert(test_category<is_unsigned, unsigned long long>(true), "");
  48
  49   static_assert(test_category<is_unsigned, float>(false), "");
  50   static_assert(test_category<is_unsigned, double>(false), "");
  51   static_assert(test_category<is_unsigned, long double>(false), "");
  52
  53 #ifndef __STRICT_ANSI__
  54   // GNU Extensions.
  55 #ifdef _GLIBCXX_USE_INT128
  56   static_assert(test_category<is_unsigned, unsigned __int128>(true), "");
  57   static_assert(test_category<is_unsigned, __int128>(false), "");
  58 #endif
  59
  60 #ifdef _GLIBCXX_USE_FLOAT128
  61   static_assert(test_category<is_unsigned, __float128>(false), "");
  62 #endif
  63 #endif
  64
  65   // Sanity check.
  66   static_assert(test_category<is_unsigned, ClassType>(false), "");
  67 }