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// { dg-do compile { target c++1z } }
// { dg-options "-std=gnu++17" }
// Copyright (C) 2017 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/>.
// C++ 2017 27.7, range access [iterator.range]
#include <iterator>
void
test01()
{
using std::reverse_iterator;
static int i[1];
static_assert(std::cbegin(i) == i);
static_assert(std::cend(i) == i+1);
static_assert(std::rbegin(i) == reverse_iterator<int*>(i+1));
static_assert(std::rend(i) == reverse_iterator<int*>(i));
static_assert(std::crbegin(i) == reverse_iterator<int*>(i+1));
static_assert(std::crend(i) == reverse_iterator<int*>(i));
}
void
test02()
{
static int i[] = { 1, 2 };
static_assert(std::distance(std::begin(i), std::end(i)) == 2);
static_assert(std::distance(std::cbegin(i), std::cend(i)) == 2);
}
void
test03()
{
using std::reverse_iterator;
static std::initializer_list<int> il{1};
static_assert(std::cbegin(il) == il.begin());
static_assert(std::cend(il) == il.end());
static_assert(std::rbegin(il) == reverse_iterator<const int*>(il.end()));
static_assert(std::rend(il) == reverse_iterator<const int*>(il.begin()));
static_assert(std::crbegin(il) == reverse_iterator<const int*>(il.end()));
static_assert(std::crend(il) == reverse_iterator<const int*>(il.begin()));
}
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