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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
//
//===----------------------------------------------------------------------===//
// <array>
// template <size_t I, class T, size_t N> T& get(array<T, N>& a);
#include <array>
#include <cassert>
#include "test_macros.h"
// std::array is explicitly allowed to be initialized with A a = { init-list };.
// Disable the missing braces warning for this reason.
#include "disable_missing_braces_warning.h"
#if TEST_STD_VER > 11
struct S {
std::array<int, 3> a;
int k;
constexpr S() : a{1,2,3}, k(std::get<2>(a)) {}
};
constexpr std::array<int, 2> getArr () { return { 3, 4 }; }
#endif
int main(int, char**)
{
{
typedef double T;
typedef std::array<T, 3> C;
C c = {1, 2, 3.5};
std::get<1>(c) = 5.5;
assert(c[0] == 1);
assert(c[1] == 5.5);
assert(c[2] == 3.5);
}
#if TEST_STD_VER > 11
{
typedef double T;
typedef std::array<T, 3> C;
constexpr C c = {1, 2, 3.5};
static_assert(std::get<0>(c) == 1, "");
static_assert(std::get<1>(c) == 2, "");
static_assert(std::get<2>(c) == 3.5, "");
}
{
static_assert(S().k == 3, "");
static_assert(std::get<1>(getArr()) == 4, "");
}
#endif
return 0;
}
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