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//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
// UNSUPPORTED: c++03, c++11
// <utility>
// template<class T, T... I>
// struct integer_sequence
// {
// typedef T type;
//
// static constexpr size_t size() noexcept;
// };
#include <utility>
#include <type_traits>
#include <cstddef>
#include <cassert>
#include "test_macros.h"
int main(int, char**)
{
// Make a few of sequences
using int3 = std::integer_sequence<int, 3, 2, 1>;
using size1 = std::integer_sequence<std::size_t, 7>;
using ushort2 = std::integer_sequence<unsigned short, 4, 6>;
using bool0 = std::integer_sequence<bool>;
// Make sure they're what we expect
static_assert ( std::is_same<int3::value_type, int>::value, "int3 type wrong" );
static_assert ( int3::size() == 3, "int3 size wrong" );
static_assert ( std::is_same<size1::value_type, std::size_t>::value, "size1 type wrong" );
static_assert ( size1::size() == 1, "size1 size wrong" );
static_assert ( std::is_same<ushort2::value_type, unsigned short>::value, "ushort2 type wrong" );
static_assert ( ushort2::size() == 2, "ushort2 size wrong" );
static_assert ( std::is_same<bool0::value_type, bool>::value, "bool0 type wrong" );
static_assert ( bool0::size() == 0, "bool0 size wrong" );
return 0;
}
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