libstdc++-v3/testsuite/20_util/unique_ptr/comparison/compare_c++20.cc

   1 // Copyright (C) 2020-2023 Free Software Foundation, Inc.
   2 //
   3 // This file is part of the GNU ISO C++ Library.  This library is free
   4 // software; you can redistribute it and/or modify it under the
   5 // terms of the GNU General Public License as published by the
   6 // Free Software Foundation; either version 3, or (at your option)
   7 // any later version.
   8
   9 // This library is distributed in the hope that it will be useful,
  10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 // GNU General Public License for more details.
  13
  14 // You should have received a copy of the GNU General Public License along
  15 // with this library; see the file COPYING3.  If not see
  16 // <http://www.gnu.org/licenses/>.
  17
  18 // { dg-do run { target c++20 } }
  19
  20 #include <memory>
  21 #include <testsuite_hooks.h>
  22
  23 void
  24 test01()
  25 {
  26   std::unique_ptr<int> p0, p00;
  27   VERIFY( p0 == p00 );
  28   VERIFY( !(p0 < p00) );
  29   VERIFY( !(p0 > p00) );
  30   VERIFY( p0 <= p00 );
  31   VERIFY( p0 >= p00 );
  32   VERIFY( std::is_eq(p0 <=> p00) );
  33
  34   std::unique_ptr<int> p1(new int(1));
  35   VERIFY( p1 == p1 );
  36   VERIFY( !(p1 < p1) );
  37   VERIFY( !(p1 > p1) );
  38   VERIFY( p1 <= p1 );
  39   VERIFY( p1 >= p1 );
  40   VERIFY( std::is_eq(p1 <=> p1) );
  41
  42   std::unique_ptr<const int> p2(new int(1));
  43   VERIFY( p1 >= p1 );
  44   VERIFY( p1 != p2 );
  45   VERIFY( (p1 < p2) || (p1 > p2) );
  46   VERIFY( (p1 <= p2) || (p1 >= p2) );
  47   VERIFY( std::is_neq(p1 <=> p2) );
  48
  49   VERIFY( p1 != p0 );
  50   VERIFY( !(p1 < p0) );
  51   VERIFY( p1 > p0 );
  52   VERIFY( !(p1 <= p0) );
  53   VERIFY( p1 >= p0 );
  54   VERIFY( std::is_gt(p1 <=> p0) );
  55   VERIFY( std::is_lt(p0 <=> p1) );
  56 }
  57
  58 void
  59 test02()
  60 {
  61   std::unique_ptr<int> p0;
  62   VERIFY( p0 == nullptr );
  63   VERIFY( !(p0 < nullptr) );
  64   VERIFY( !(p0 > nullptr) );
  65   VERIFY( p0 <= nullptr );
  66   VERIFY( p0 >= nullptr );
  67   VERIFY( std::is_eq(p0 <=> nullptr) );
  68
  69   VERIFY( nullptr == p0 );
  70   VERIFY( !(nullptr < p0) );
  71   VERIFY( !(nullptr > p0) );
  72   VERIFY( nullptr <= p0 );
  73   VERIFY( nullptr >= p0 );
  74   VERIFY( std::is_eq(nullptr <=> p0) );
  75
  76   std::unique_ptr<int> p1(new int(1));
  77   VERIFY( p1 != nullptr );
  78   VERIFY( !(p1 < nullptr) );
  79   VERIFY( p1 > nullptr );
  80   VERIFY( !(p1 <= nullptr) );
  81   VERIFY( p1 >= nullptr );
  82   VERIFY( std::is_gt(p1 <=> nullptr) );
  83
  84   VERIFY( nullptr != p1 );
  85   VERIFY( nullptr < p1 );
  86   VERIFY( !(nullptr > p1) );
  87   VERIFY( nullptr <= p1 );
  88   VERIFY( !(nullptr >= p1) );
  89   VERIFY( std::is_lt(nullptr <=> p1) );
  90 }
  91
  92 int
  93 main()
  94 {
  95   test01();
  96   test02();
  97 }