libstdc++-v3/testsuite/20_util/optional/relops/7.cc

   1 // { dg-options "-std=gnu++17" }
   2 // { dg-do run { target c++17 }  }
   3
   4 // Copyright (C) 2017-2020 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 <optional>
  22 #include <testsuite_hooks.h>
  23 #include <string>
  24
  25 int main()
  26 {
  27   std::optional<int> o = 42;
  28   std::optional<const int> o2 = 666;
  29   VERIFY(o == 42);
  30   VERIFY(o != 43);
  31   VERIFY(o < 43);
  32   VERIFY(o > 41);
  33   VERIFY(o <= 43);
  34   VERIFY(o >= 41);
  35   VERIFY(o2 == 666);
  36   VERIFY(o2 != 667);
  37   VERIFY(o2 < 667);
  38   VERIFY(o2 > 665);
  39   VERIFY(o2 <= 667);
  40   VERIFY(o2 >= 665);
  41   VERIFY(42 == o);
  42   VERIFY(43 != o);
  43   VERIFY(41< o);
  44   VERIFY(43 > o);
  45   VERIFY(41 <= o);
  46   VERIFY(43 >= o);
  47   VERIFY(666 == o2);
  48   VERIFY(667 != o2);
  49   VERIFY(665 < o2);
  50   VERIFY(667 > o2);
  51   VERIFY(665 <= o2);
  52   VERIFY(667 >= o2);
  53   std::optional<std::string> os = "jones";
  54   VERIFY(os == "jones");
  55   VERIFY(os != "bones");
  56   VERIFY(os < "kones");
  57   VERIFY(os > "hones");
  58   VERIFY(os <= "kones");
  59   VERIFY(os >= "hones");
  60   VERIFY("jones" == os);
  61   VERIFY("bones" != os);
  62   VERIFY("hones" < os);
  63   VERIFY("kones" > os);
  64   VERIFY("hones" <= os);
  65   VERIFY("kones" >= os);
  66   std::optional<int> oi = 42;
  67   std::optional<long int> ol = 666;
  68   VERIFY(!(oi == ol));
  69   VERIFY(!(ol == oi));
  70   VERIFY(oi != ol);
  71   VERIFY(ol != oi);
  72 }