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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
//
//===----------------------------------------------------------------------===//
// REQUIRES: has-unix-headers
// UNSUPPORTED: c++03
// UNSUPPORTED: libcpp-hardening-mode=none
// XFAIL: libcpp-hardening-mode=debug && availability-verbose_abort-missing
// <array>
// Test that operator[] triggers an assertion when accessing the array out-of-bounds.
#include <array>
#include "check_assertion.h"
int main(int, char**) {
// Check with an empty array
{
{
using Array = std::array<int, 0>;
Array c = {};
Array const& cc = c;
TEST_LIBCPP_ASSERT_FAILURE(c[0], "cannot call array<T, 0>::operator[] on a zero-sized array");
TEST_LIBCPP_ASSERT_FAILURE(c[1], "cannot call array<T, 0>::operator[] on a zero-sized array");
TEST_LIBCPP_ASSERT_FAILURE(cc[0], "cannot call array<T, 0>::operator[] on a zero-sized array");
TEST_LIBCPP_ASSERT_FAILURE(cc[1], "cannot call array<T, 0>::operator[] on a zero-sized array");
}
{
using Array = std::array<const int, 0>;
Array c = {{}};
Array const& cc = c;
TEST_LIBCPP_ASSERT_FAILURE(c[0], "cannot call array<T, 0>::operator[] on a zero-sized array");
TEST_LIBCPP_ASSERT_FAILURE(c[1], "cannot call array<T, 0>::operator[] on a zero-sized array");
TEST_LIBCPP_ASSERT_FAILURE(cc[0], "cannot call array<T, 0>::operator[] on a zero-sized array");
TEST_LIBCPP_ASSERT_FAILURE(cc[1], "cannot call array<T, 0>::operator[] on a zero-sized array");
}
}
// Check with non-empty arrays
{
{
using Array = std::array<int, 1>;
Array c = {};
Array const& cc = c;
TEST_LIBCPP_ASSERT_FAILURE(c[2], "out-of-bounds access in std::array<T, N>");
TEST_LIBCPP_ASSERT_FAILURE(cc[2], "out-of-bounds access in std::array<T, N>");
}
{
using Array = std::array<const int, 1>;
Array c = {{}};
Array const& cc = c;
TEST_LIBCPP_ASSERT_FAILURE(c[2], "out-of-bounds access in std::array<T, N>");
TEST_LIBCPP_ASSERT_FAILURE(cc[2], "out-of-bounds access in std::array<T, N>");
}
{
using Array = std::array<int, 5>;
Array c = {};
Array const& cc = c;
TEST_LIBCPP_ASSERT_FAILURE(c[99], "out-of-bounds access in std::array<T, N>");
TEST_LIBCPP_ASSERT_FAILURE(cc[99], "out-of-bounds access in std::array<T, N>");
}
{
using Array = std::array<const int, 5>;
Array c = {{}};
Array const& cc = c;
TEST_LIBCPP_ASSERT_FAILURE(c[99], "out-of-bounds access in std::array<T, N>");
TEST_LIBCPP_ASSERT_FAILURE(cc[99], "out-of-bounds access in std::array<T, N>");
}
}
return 0;
}
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