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// Copyright (C) 2005-2022 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library. This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 3, or (at your option)
// any later version.
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License along
// with this library; see the file COPYING3. If not see
// <http://www.gnu.org/licenses/>.
// 25.5.8 [lib.alg.unique_copy]
// { dg-do compile }
#include <algorithm>
#include <testsuite_iterators.h>
using __gnu_test::input_iterator_wrapper;
using __gnu_test::output_iterator_wrapper;
template<typename T>
struct iter_facade
{
T& operator++();
T operator++(int);
T& operator*() const;
};
struct S1 : iter_facade<S1> { };
struct S2 : iter_facade<S2>
{
S2(const S1&) {}
};
bool
operator==(const S1&, const S1&) {return true;}
struct X1 : iter_facade<X1> { };
struct X2 : iter_facade<X2>
{
X2(const X1&) {}
};
bool
predicate(const X1&, const X1&) {return true;}
output_iterator_wrapper<S2>
test1(input_iterator_wrapper<S1>& s1, output_iterator_wrapper<S2>& s2)
{ return std::unique_copy(s1, s1, s2); }
output_iterator_wrapper<X2>
test2(input_iterator_wrapper<X1>& x1, output_iterator_wrapper<X2>& x2)
{ return std::unique_copy(x1, x1, x2, predicate); }