libstdc++-v3/testsuite/20_util/pair/4.cc

   1 // 2001-06-18  Benjamin Kosnik  <bkoz@redhat.com>
   2
   3 // Copyright (C) 2001-2019 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 copy 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 // 20.2.2 Pairs
  21
  22 #include <utility>
  23 #include <testsuite_hooks.h>
  24
  25 class gnu_obj
  26 {
  27   int i;
  28 public:
  29   gnu_obj(int arg = 0): i(arg) { }
  30   bool operator==(const gnu_obj& rhs) const { return i == rhs.i; }
  31   bool operator<(const gnu_obj& rhs) const { return i < rhs.i; }
  32 };
  33
  34 template<typename T>
  35   struct gnu_t
  36   {
  37     bool b;
  38   public:
  39     gnu_t(bool arg = 0): b(arg) { }
  40     bool operator==(const gnu_t& rhs) const { return b == rhs.b; }
  41     bool operator<(const gnu_t& rhs) const { return int(b) < int(rhs.b); }
  42   };
  43
  44 // const&
  45 void test04()
  46 {
  47   const gnu_obj& obj1 = gnu_obj(5);
  48   const std::pair<const char*, gnu_obj> p_sg_1("enlightenment", obj1);
  49   const std::pair<const char*, gnu_obj> p_sg_2 =
  50     std::make_pair("enlightenment", obj1);
  51   VERIFY( p_sg_1 == p_sg_2 );
  52   VERIFY( !(p_sg_1 < p_sg_2) );
  53
  54   const gnu_t<long>& tmpl1 = gnu_t<long>(false);
  55   const std::pair<gnu_t<long>, gnu_obj> p_st_1(tmpl1, obj1);
  56   const std::pair<gnu_t<long>, gnu_obj> p_st_2 = std::make_pair(tmpl1, obj1);
  57   VERIFY( p_st_1 == p_st_2 );
  58   VERIFY( !(p_st_1 < p_st_2) );
  59 }
  60
  61 int main()
  62 {
  63   test04();
  64   return 0;
  65 }