libstdc++-v3/testsuite/25_algorithms/equal/check_type.cc

   1 // Copyright (C) 2005-2022 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 // 25.1.8 [lib.alg.equal]
  19
  20 // { dg-do compile }
  21
  22 #include <algorithm>
  23 #include <testsuite_iterators.h>
  24 using __gnu_test::input_iterator_wrapper;
  25
  26 struct Lhs1 { };
  27
  28 struct Rhs1 { };
  29
  30 bool operator==(const Lhs1&, const Rhs1&) {return true;}
  31
  32 struct Lhs2 { };
  33
  34 struct Rhs2 { };
  35
  36 bool
  37 predicate(const Lhs2&, const Rhs2&) {return true;}
  38
  39 bool
  40 test1(input_iterator_wrapper<Lhs1>& lhs1,
  41       input_iterator_wrapper<Rhs1>& rhs1)
  42 { return std::equal(lhs1, lhs1, rhs1); }
  43
  44 bool
  45 test2(input_iterator_wrapper<Lhs2>& lhs2,
  46       input_iterator_wrapper<Rhs2>& rhs2)
  47 { return std::equal(lhs2, lhs2, rhs2, predicate); }