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[thirdparty/gcc.git] / libstdc++-v3 / testsuite / 24_iterators / operations / prev_neg.cc

// Copyright (C) 2015-2020 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/>.

// { dg-options "-D_GLIBCXX_CONCEPT_CHECKS" }
// { dg-do compile { target c++11 } }

#include <iterator>

struct Y {};

namespace std
{
  template<>
    struct iterator_traits<const Y*> : iterator_traits<Y*>
    {
      using iterator_category = forward_iterator_tag;
      using reference = const Y&;
      using pointer = const Y*;
    };
}

void
test02()
{
  const Y array[1] = { };
  std::prev(array + 1);
  // { dg-error "forward_iterator" "" { target *-*-* } 223 }
}