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

   1 // { dg-options "-Wno-pedantic" }
   2 // { dg-do compile { target c++11 } }
   3 //
   4 // Copyright (C) 2011-2022 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_floating_point;
  27   using namespace __gnu_test;
  28
  29   static_assert(test_category<is_floating_point, void>(false), "");
  30   static_assert(test_category<is_floating_point, char>(false), "");
  31   static_assert(test_category<is_floating_point, signed char>(false), "");
  32   static_assert(test_category<is_floating_point, unsigned char>(false), "");
  33   static_assert(test_category<is_floating_point, wchar_t>(false), "");
  34   static_assert(test_category<is_floating_point, short>(false), "");
  35   static_assert(test_category<is_floating_point, unsigned short>(false), "");
  36   static_assert(test_category<is_floating_point, int>(false), "");
  37   static_assert(test_category<is_floating_point, unsigned int>(false), "");
  38   static_assert(test_category<is_floating_point, long>(false), "");
  39   static_assert(test_category<is_floating_point, unsigned long>(false), "");
  40   static_assert(test_category<is_floating_point, long long>(false), "");
  41   static_assert(test_category<is_floating_point,
  42                 unsigned long long>(false), "");
  43
  44   static_assert(test_category<is_floating_point, float>(true), "");
  45   static_assert(test_category<is_floating_point, double>(true), "");
  46   static_assert(test_category<is_floating_point, long double>(true), "");
  47
  48 #ifndef __STRICT_ANSI__
  49   // GNU Extensions.
  50 #ifdef _GLIBCXX_USE_FLOAT128
  51   static_assert(test_category<is_floating_point, __float128>(true), "");
  52 #endif
  53
  54 #ifdef __SIZEOF_INT128__
  55   static_assert(test_category<is_floating_point, __int128>(false), "");
  56   static_assert(test_category<is_floating_point,
  57                 unsigned __int128>(false), "");
  58 #endif
  59 #endif
  60
  61   // Sanity check.
  62   static_assert(test_category<is_floating_point, ClassType>(false), "");
  63 }