libstdc++-v3/testsuite/experimental/propagate_const/relops/1.cc

   1 // { dg-do run { target c++14 } }
   2
   3 // Copyright (C) 2015-2016 Free Software Foundation, Inc.
   4 //
   5 // This file is part of the GNU ISO C++ Library.  This library is free
   6 // software; you can redistribute it and/or modify it under the
   7 // terms of the GNU General Public License as published by the
   8 // Free Software Foundation; either version 3, or (at your option)
   9 // any later version.
  10
  11 // This library is distributed in the hope that it will be useful,
  12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 // GNU General Public License for more details.
  15
  16 // You should have received a moved_to of the GNU General Public License along
  17 // with this library; see the file COPYING3.  If not see
  18 // <http://www.gnu.org/licenses/>.
  19
  20 #include <experimental/propagate_const>
  21 #include <testsuite_hooks.h>
  22
  23 using std::experimental::propagate_const;
  24 using std::hash;
  25
  26 int main()
  27 {
  28   int x[2];
  29   propagate_const<int*> xx1{&x[0]};
  30   propagate_const<int*> xx2{&x[1]};
  31   VERIFY(xx1 == xx1);
  32   VERIFY(xx1 != xx2);
  33   VERIFY(xx1 < xx2);
  34   VERIFY(xx2 > xx1);
  35   VERIFY(xx1 <= xx2);
  36   VERIFY(xx2 >= xx1);
  37   VERIFY(xx1 <= xx1);
  38   VERIFY(xx2 >= xx2);
  39   VERIFY(std::equal_to<propagate_const<int*>>{}(xx1, xx1));
  40   VERIFY(std::not_equal_to<propagate_const<int*>>{}(xx1, xx2));
  41   VERIFY(std::less<propagate_const<int*>>{}(xx1, xx2));
  42   VERIFY(std::greater<propagate_const<int*>>{}(xx2, xx1));
  43   VERIFY(std::less_equal<propagate_const<int*>>{}(xx1, xx2));
  44   VERIFY(std::greater_equal<propagate_const<int*>>{}(xx2, xx1));
  45   VERIFY(std::less_equal<propagate_const<int*>>{}(xx1, xx1));
  46   VERIFY(std::greater_equal<propagate_const<int*>>{}(xx2, xx2));
  47   static constexpr int x2[2]{};
  48   constexpr propagate_const<const int*> xx3{&x2[0]};
  49   constexpr propagate_const<const int*> xx4{&x2[1]};
  50   static_assert(xx3 == xx3, "");
  51   static_assert(xx3 != xx4, "");
  52   static_assert(xx3 < xx4, "");
  53   static_assert(xx4 > xx3, "");
  54   static_assert(xx3 <= xx4, "");
  55   static_assert(xx4 >= xx3, "");
  56   static_assert(xx3 <= xx3, "");
  57   static_assert(xx4 >= xx4, "");
  58   static_assert(std::equal_to<propagate_const<const int*>>{}(xx3, xx3), "");
  59   static_assert(std::not_equal_to<propagate_const<const int*>>{}(xx3, xx4), "");
  60   static_assert(std::less<propagate_const<const int*>>{}(xx3, xx4), "");
  61   static_assert(std::greater<propagate_const<const int*>>{}(xx4, xx3), "");
  62   static_assert(std::less_equal<propagate_const<const int*>>{}(xx3, xx4), "");
  63   static_assert(std::greater_equal<propagate_const<const int*>>{}(xx4, xx3), "");
  64   static_assert(std::less_equal<propagate_const<const int*>>{}(xx3, xx3), "");
  65   static_assert(std::greater_equal<propagate_const<const int*>>{}(xx4, xx4), "");
  66 }