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

   1 // Copyright (C) 2005-2021 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 // 25.5.8 [lib.alg.unique_copy]
  19
  20 // { dg-do compile }
  21
  22 #include <algorithm>
  23 #include <testsuite_iterators.h>
  24
  25 using __gnu_test::input_iterator_wrapper;
  26 using __gnu_test::output_iterator_wrapper;
  27
  28 struct S1 { };
  29
  30 struct S2
  31 {
  32   S2(const S1&) {}
  33 };
  34
  35 bool
  36 operator==(const S1&, const S1&) {return true;}
  37
  38 struct X1 { };
  39
  40 struct X2
  41 {
  42   X2(const X1&) {}
  43 };
  44
  45 bool
  46 predicate(const X1&, const X1&) {return true;}
  47
  48 output_iterator_wrapper<S2>
  49 test1(input_iterator_wrapper<S1>& s1, output_iterator_wrapper<S2>& s2)
  50 { return std::unique_copy(s1, s1, s2); }
  51
  52 output_iterator_wrapper<X2>
  53 test2(input_iterator_wrapper<X1>& x1, output_iterator_wrapper<X2>& x2)
  54 { return std::unique_copy(x1, x1, x2, predicate); }