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// { dg-do compile { target c++11 } }
//
// Copyright (C) 2011-2022 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/>.
// NB: Don't include any other headers in this file.
// LWG 2212 requires <array> to define tuple_size<cv T> specializations.
#include <array>
void
test01()
{
using std::array;
using std::tuple_size;
using std::size_t;
// This relies on the fact that <utility> includes <type_traits>:
using std::is_same;
{
const size_t len = 5;
typedef array<int, len> array_type;
static_assert(tuple_size<array_type>::value == 5, "");
static_assert(tuple_size<const array_type>::value == 5, "");
static_assert(tuple_size<volatile array_type>::value == 5, "");
static_assert(tuple_size<const volatile array_type>::value == 5, "");
}
{
const size_t len = 0;
typedef array<float, len> array_type;
static_assert(tuple_size<array_type>::value == 0, "");
static_assert(tuple_size<const array_type>::value == 0, "");
static_assert(tuple_size<volatile array_type>::value == 0, "");
static_assert(tuple_size<const volatile array_type>::value == 0, "");
}
}
int main()
{
test01();
return 0;
}
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